Catalog Rulmenti

387

3

388 Drawn Cup Needle Roller Bearings

426 Radial Needle Roller and Cage Assemblies

446 Heavy Duty Needle Roller Bearings

462 Needle Roller Bearings (Metric)

490 Track Rollers ⁄ Cam Followers

520 Thrust Bearings

548 Drawn Cup Roller Clutches

3 Timken Torrington Needle Roller Bearings

Page

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with M prefixsignifies closed end inchnominal dimensions

Bore16 = 16⁄16 = 1"18 = 18⁄16 = 1 1⁄8"

Width12 = 12⁄16 = 3⁄4"16 = 16⁄16 = 1"

Suffixes: limited availabilityF plastic cage

GF grease fitting, closed endOH oil hole

OHE oil hole in closed end

PrefixesB full complement of mechanically

retained needle rollersG extraprecisionH heavy seriesJ caged complement of needle rollersM closed endT one seal

TT two seals

MJH - 18 16 1 - OH

Inner Rings (with 4-digit number) Inch Nominal DimensionsPrefixes

IR regular width (for use with drawn cup bearings only)IRA extended width (for use with drawn cup bearings only)

Suffixes: limited availabilityL .005" width tolerance

OH oil hole and lube groove

I R - 14 16 - OHBore 5 = 5⁄16"14 = 14⁄16 = 7⁄8"

Width (IR series only)12 = 12⁄16 = 3⁄4"16 = 16⁄16 = 1"

Drawn Cup Needle Roller Bearings – Metric Nominal Dimensions

Drawn Cup Needle Roller Bearings – Inch Nominal Dimensions

Width12 = 12 mm20 = 20 mm

SuffixRS lip contact seal on one side of the bearing

.2RS lip contact seal on each side of the bearingAS1 lubricating hole

HK 10 12 AS1Bore diameter10 = 10 mm25 = 25 mm

PrefixHK drawn cup bearing, caged open endsBK drawn cup bearing, caged, closed end

Inner Rings – Metric Nominal Dimensions

JR 10 x 14 x 12 JS1

PrefixJR inner ring

JRZ inner ring without mounting chambers

Outside diameter14 = 14 mm25 = 25 mm

SuffixJS1 lubricating hole

Bore diameter10 = 10 mm20 = 20 mm

Width12 = 12 mm30 = 30 mm

388

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3

DRAWN CUP BEARINGS – METRIC SERIES

Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 390

Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 390

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391

Inner Rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391

Load Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393

Tables of Dimensions

Bearings with Open Ends and

Closed at One End . . . . . . . . . . . . . . . . . . . . . . . . . . 395

Sealed Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 397

DRAWN CUP BEARINGS – INCH SERIES

Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398

Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 399

Inner Rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400

Load Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402


Caged and Full Complement Bearings . . . . . . . . . 406

Extra-Precision . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408

Sealed Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 410

Inner Rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412

Drawn CupNeedle RollerBearings

Page Page

389

DRAWN CUP NEEDLE ROLLER BEARINGS

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DRAWN CUP NEEDLEROLLER BEARINGS – Metric SeriesWhen a rolling bearing is needed for a compact and economicdesign and where it is not practical to harden and grind thehousing bore, or where the housing materials are of low rigiditysuch as cast iron, aluminum or even plastics, drawn cupneedle roller bearings should be considered.

Reference standards are:• ISO 3245 – Rolling bearings – Needle roller bearings, drawn

cup, without inner ring, boundary dimensions and toler-ances.

• ANSI/ABMA 18.1 – Needle roller bearings – Radial, metricdesign.

• DIN 618 – Needle roller bearings with cage – Drawn cupswith open end, drawn cup withclosed end.

Before selecting specific drawn cup needle roller bearings, theNeedle Bearing Engineering section of this catalog should bereviewed.

CONSTRUCTIONThe outer ring in the form of a cup is accurately drawn, and nosubsequent machining is performed. Drawn cup needle rollerbearings of series HK have open ends. They are also avail-able with one seal HKRS and with two seals HK.2RS. Thestamped lip of a drawn cup needle roller bearing of seriesHKRS with one seal is at the seal end.

Drawn cup needle roller bearings of series BK are closedat one end. They are used for shaft end mounting. The openend is not sealed.

Drawn cup needle roller bearings are also available withtwo needle roller and cage assemblies. They have a lubricat-ing hole in the outer ring. Metric series drawn cup bearingswith one needle roller and cage assembly may be madeavailable on request with a lubricating hole, indicated by suffixAS1.

The one-piece steel cage used in most Timken Torringtondrawn cup bearings is designed to provide rigidity and mini-mize wear. This cage design separates the needle rollerguiding and retention functions.

Sealed bearingsTorrington drawn cup bearings are offered with integral seals.The tables of dimensions on page 397 indicates those sizesavailable with lip contact seals. The seal lip design achievesa light and constant contact with the inner raceway throughoutthe range of mounted bearing clearances thereby ensuringpositive sealing and low frictional drag.

Sealed drawn cup bearings are intended to retain greaseor non-pressurized oil within a bearing while also preventingcontaminants entering the raceway area.

Details of shaft design for sealed bearings are given inthe Engineering section of this catalog.

The standard lip contact seals are compatible with com-mon lubricating oils and petroleum based fuels, but they areadversely affected by certain fire-resistant hydraulic fluids andmost common solvents. Sealed drawn cup bearings arenormally filled with a high quality lithium soap base generalpurpose grease. The seal material and grease properties limitthe bearing operating temperature between -30˚C and +100˚C.

If the operating temperature must be outside of the rangefor the seals mentioned here, or if the seals are exposedto unusual fluids please consult Timken Engineering.

TYPES OF METRIC SERIES DRAWN CUP NEEDLE ROLLER BEARINGSDrawn cup needle roller Drawn cup needle roller Drawn cup needle roller bearings,bearing, open ends bearing, closed end open ends, sealed

SUFFIXES

AS1 lubricating hole

RS one seal

.2RS two seals


HK BK HKRS HK.2RS

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BEARING MOUNTING FITSAND INTERNAL CLEARANCEDrawn cup bearings are manufactured to a degree of preci-sion that will satisfy the radial clearance requirements of mostapplications. The total radial clearance for an installed drawncup bearing results from the build up of manufacturing toler-ances of the housing bore, the inner raceway diameter andthe bearing, as well as the minimum radial clearance requiredfor the application. For metric series drawn cup bearings requiring closecontrol of radial internal clearance the recommended housingbore tolerance is N6 and h5 tolerance for the inner racewaydiameter. When such exacting close control of radial internalclearance is not required, the user may select N7 housingbore and h6 inner raceway diameter tolerances.

Tolerances for housing materials of low rigidityMetric series drawn cup bearings used in housings made frommaterials of low rigidity or steel housings of small section therecommended housing bore tolerance is R6 (R7). To main-tain normal radial internal clearance the inner raceway diam-eter tolerance should be h5 (h6).

Outer ring rotationFor metric series drawn cup bearing applications where theouter ring rotates with respect to the load, it is recommendedthat both the housing bore and the inner raceway diameterbe reduced using R6 (R7) and f5 (f6) tolerance practicerespectively.

Oscillating motionMetric series drawn cup bearing applications involving oscil-lating motion may require reduced radial internal clearances.This reduction may be accomplished by increasing the innerraceway diameter using j6 tolerance.

INNER RINGSWhen it becomes impractical to meet the shaft racewaydesign requirements (hardness, case depth, surface finishetc.) outlined in the Needle Bearing Engineering section,standard inner rings may be used with metric series drawncup bearings. These are tabulated on pages 483-488. It isrecommended that when metric series inner rings are usedwith metric series drawn cup bearings, they should bemounted with a loose transition fit on the shaft using g6 (g5)shaft diameter tolerance. The inner ring should be end-clamped against a shoulder. If a tight transition fit must beused, [shaft diameter tolerance h6 (h5)], to keep the innerring from rotating relative to the shaft, the inner ring outsidediameter, as mounted, must not exceed the raceway diameterrequired by the drawn cup bearing for the particular applica-tion. In case the outside diameter of the inner ring, whenmounted on the shaft, exceeds the required raceway diameterfor the matching drawn cup bearing, it should be ground toproper diameter while mounted on the shaft.

LOAD RATING FACTORSDynamic loadsDrawn cup needle roller bearings can accommodate onlyradial loads.

P = Fr

P = The maximum dynamic radial load that may beapplied to a drawn cup bearing based on thedynamic load rating, C given in the tabular pages.This load should be < C/3.

Static loads

f0 = C0

P0

f0 – static load safety factor

C0 – basic static load rating (kN)

P0 – maximum applied static load (kN)To ensure satisfactory operation of drawn cup needleroller bearings under all types of conditions the staticload safety factor f0 should be > 3.

Adjusted rating lifeWhen application data includes details of operating tem-perature, oil viscosity, operating speed and the applied loadmeets the < C/3 condition adjusted rating life may be evalu-ated using the information given on pages E81 to E87 of thiscatalog.

SPECIAL BEARINGSTimken also has available bearings with other cage designsand materials such as reinforced engineered polymer foruse where operating conditions permit.


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INSPECTION OF DRAWN CUP NEEDLEROLLER BEARINGSAlthough the bearing cup is accurately drawn from strip steel,because of its fairly thin section it may go out of round duringheat treatment. When the bearing is pressed into a true roundhousing or ring gage, of correct size and wall thickness, itbecomes round and is sized properly. For this reason, it isincorrect to inspect an unmounted drawn cup bearing bymeasuring the outside diameter. The correct method forinspecting the bearing size is to:

1. press the bearing into a ring gage of proper size

2. plug the bearing bore with the appropriate “go” and“no go” gages or measure it with a tapered arbor(lathe mandrel)

The “go” gage size is the minimum needle roller complementbore diameter. The “no go” gage size is larger than themaximum needle roller complement bore diameter by 0,002 mm.

Table 1 –HK Series Bearings

dimensions – mm

nominal needle roller complementbore ring bore diameter (F ws min )

diameter gagemm * min. max.

3 6,484 3,006 3,0244 7,984 4,010 4,0285 8,984 5,010 5,028

6 9,984 6,010 6,0287 10,980 7,013 7,0318 11,980 8,013 8,0319 12,980 9,013 9,031

10 13,980 10,013 10,03112 15,980 12,016 12,03412 17,980 12,016 12,03413 18,976 13,016 13,034

14 19,976 14,016 14,03415 20,976 15,016 15,03416 21,976 16,016 16,03417 22,976 17,016 17,034

18 23,976 18,016 18,03420 25,976 20,020 20,04122 27,976 22,020 22,04125 31,972 25,020 25,041

28 34,972 28,020 28,04130 36,972 30,020 30,04135 41,972 35,025 35,05040 46,972 40,025 40,050

45 51,967 45,025 45,05050 57,967 50,025 50,05060 67,967 60,030 60,060

* The ring gage sizes are in accordance with ISO N6 lower limit.


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INSTALLATION PROCEDURES

General installation requirements• A drawn cup bearing must be pressed into its housing.

• An installation tool, similar to the one illustrated, must be usedin conjunction with a standard press.

• The bearing must not be hammered into its housing even inconjunction with the proper assembly mandrel.

• The bearing must not be pressed tightly against a shoulder inthe housing.

• If it is necessary to use a shouldered housing, the depth ofthe housing bore must be sufficient to ensure that thehousing shoulder fillet, as well as the shoulder face, clearsthe bearing.

• The installation tool must be coaxial with the housing bore.

A – 0,4 mm less than housing bore

B – 0,08 mm less than shaft diameter

C – distance bearing will be insetinto housing, minimum of 0,2 mm

D – pilot length should be length ofbearing less 0,8mm

E – approximately 1⁄ 2 D

Installation of open end bearingsIt is advisable to utilize a positive stop on the press tool tolocate the bearing properly in the housing. The assembly toolshould have a leader or a pilot, as shown, to aid in starting thebearing true in the housing. The “O” ring shown on the

drawing may be used to assist in holding the bearing on theinstallation tool. The bearing should be installed with thestamped end (the end with the identification markings) againstthe angled shoulder of the pressing tool.

D

E

Stamped endof bearing

Generous chamferor rounding foreasy bearinginstallation

C

15°

A

B


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C

B

A

Installation of closed end bearingsBearing can be piloted from below for installation.

Extraction from a Straight HousingBearing can be extracted by pushing it throughthe housing. After extraction, the drawn cup bearing shouldnot be reused.


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395

3

D

C

r

Fw

C3

C

D

r

Fw

Open Ends,Closed At One EndMetric Series

Shaft Dimensions Bearing Inner Ring Load ratings Limiting speeds MassDiameter Fw D C C3 min rs min Designation Designation dynamic static Grease Oil Approx.

-0,3 Open ends C C0mm Closed end kN rpm kg

3 3 6,5 6 0,3 HK0306 1,6 1,14 29 900 46 000 0,0013 6,5 6 5,2 0,3 BK0306 1,2 0,781 29 900 46 000 0,001

4 4 8 8 0,4 HK0408 1,88 1,38 25 300 39 000 0,0024 8 8 6,4 0,4 BK0408 1,83 1,32 25 300 39 000 0,002

5 5 9 9 0,4 HK0509 2,52 2,07 23 100 36 000 0,0025 9 9 7,4 0,4 BK0509 2,52 2,07 23 100 36 000 0,002

6 6 10 8 0,4 HK0608 2,34 1,95 21 700 33 000 0,0026 10 9 0,4 HK0609 3,15 2,94 21 700 33 000 0,0036 10 9 7,4 0,4 BK0609 3,14 2,85 21 700 33 000 0,003

7 7 11 9 0,4 HK0709 3,22 3,12 20 600 32 000 0,0027 11 9 7,4 0,4 BK0709 3,23 3,05 20 600 32 000 0,002

8 8 12 8 0,4 HK0808 2,9 2,73 19 900 31 000 0,0038 12 8 6,4 0,4 BK0808 2,9 2,73 19 900 31 000 0,0038 12 10 0,4 HK0810 JR5x8x12 3,95 4,07 19 900 31 000 0,0048 12 10 8,4 0,4 BK0810 JR5x8x12 3,93 4,14 19 900 31 000 0,004

9 9 13 10 0,4 HK0910 JR6x9x12 4,57 5,07 19 300 30 000 0,0049 13 10 8,4 0,4 BK0910 JR6x9x12 4,57 5,07 19 300 30 000 0,0049 13 12 0,4 HK0912 JR6x9x12 5,65 6,65 19 300 30 000 0,0059 13 12 10,4 0,4 BK0912 JR6x9x12 5,65 6,65 19 300 30 000 0,005

10 10 14 10 0,4 HK1010 JR7x10x10,5 4,78 5,51 18 800 29 000 0,00410 14 10 8,4 0,4 BK1010 JR7x10x10,5 4,78 5,51 18 800 29 000 0,00410 14 12 0,4 HK1012 JR7x10x12 5,9 7,23 18 800 29 000 0,00510 14 12 10,4 0,4 BK1012 JR7x10x12 5,9 7,23 18 800 29 000 0,00510 14 15 0,4 HK1015 JR7x10x16 7,49 9,81 18 800 29 000 0,00610 14 15 13,4 0,4 BK1015 JR7x10x16 7,49 9,81 18 800 29 000 0,006

12 12 16 10 0,4 HK1210 JR8x12x10,5 4,96 6,08 18 100 28 000 0,00512 16 10 8,4 0,4 BK1210 JR8x12x10,5 4,96 6,08 18 100 28 000 0,00512 18 12 1 HK1212 JR8x12x12,5 6,61 7,29 14 400 22 000 0,0112 18 12 9,3 1 BK1212 JR8x12x12,5 6,61 7,29 14 400 22 000 0,01

13 13 19 12 1 HK1312 JR10x13x12,5 6,92 7,89 14 200 22 000 0,01113 19 12 9,3 1 BK1312 JR10x13x12,5 6,92 7,89 14 200 22 000 0,012

14 14 20 12 1 HK1412 JR10x14x12 7,21 8,5 13 900 21 000 0,01114 20 12 9,3 1 BK1412 JR10x14x12 7,21 8,5 13 900 21 000 0,012

15 15 21 12 1 HK1512 JR12x15x12,5 7,49 9,11 13 700 21 000 0,01215 21 12 9,3 1 BK1512 JR12x15x12,5 7,16 8,57 13 700 21 000 0,01515 21 16 1 HK1516 JR12x15x16,5 10,7 14,4 13 700 21 000 0,01615 21 16 13,3 1 BK1516 JR12x15x16,5 10,7 14,4 13 700 21 000 0,0215 21 22 1 HK1522 JR12x15x22,5 13,5 19,4 13 700 21 000 0,02415 21 22 19,3 1 BK1522 JR12x15x22,5 13,5 19,4 13 700 21 000 0,025

16 16 22 12 1 HK1612 JR12x16x12 7,76 9,72 13 500 21 000 0,01216 22 12 9,3 1 BK1612 JR12x16x12 7,76 9,72 13 500 21 000 0,01416 22 16 1 HK1616 JR12x16x16 11,1 15,3 13 500 21 000 0,01816 22 16 13,3 1 BK1616 JR12x16x16 11,1 15,3 13 500 21 000 0,0216 22 22 1 HK1622 JR12x16x22 13,4 19,5 13 500 21 000 0,02616 22 22 19,3 1 BK1622 JR12x16x22 13,4 19,5 13 500 21 000 0,028

17 17 23 12 1 HK1712 8,12 10,4 12 700 20 000 0,01617 23 12 9,3 1 BK1712 8,12 10,4 12 700 20 000 0,018

18 18 24 12 1 HK1812 8,41 11,11 11 900 18 000 0,01518 24 12 9,3 1 BK1812 8,41 11,11 11 900 18 000 0,01718 24 16 1 HK1816 JR15x18x16,5 11,6 16,8 11 900 18 000 0,0218 24 16 13,3 1 BK1816 JR15x18x16,5 11,6 16,8 11 900 18 000 0,022

HK BK


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396

D

C

r

Fw

C3

Shaft Dimensions Bearing Inner Ring Load ratings Limiting speeds MassDiameter Fw D C C3 min rs min Designation Designation dynamic static Grease Oil Approx.

-0,3 Open ends C C0mm Closed end kN rpm kg

20 20 26 12 1 HK2012 JR15x20x12 8,97 12,5 10 600 16 000 0,01620 26 12 9,3 1 BK2012 JR15x20x12 8,97 12,5 10 600 16 000 0,01720 26 16 1 HK2016 JR17x20x16,5 12,4 18,9 10 600 16 000 0,02220 26 16 13,3 1 BK2016 JR17x20x16,5 12,4 18,9 10 600 16 000 0,02420 26 20 1 HK2020 JR17x20x20,5 15,9 26,2 10 600 16 000 0,02520 26 20 17,3 1 BK2020 JR17x20x20,5 15,5 25,3 10 600 16 000 0,02720 26 30 1 HK2030 JR17x20x30,5 21,2 37,8 10 600 16 000 0,04120 26 30 27,3 1 BK2030 JR17x20x30,5 21,2 37,8 10 600 16 000 0,043

22 22 28 12 1 HK2212 JR17x22x13 9,81 14,5 9 600 15 000 0,01822 28 12 9,3 1 BK2212 JR17x22x13 9,81 14,5 9 600 15 000 0,0222 28 16 1 HK2216 JR17x22x16 13,1 20,9 9 600 15 000 0,02422 28 16 13,3 1 BK2216 JR17x22x16 13,1 20,9 9 600 15 000 0,02722 28 20 1 HK2220 JR17x22x23 15,3 25,5 9 600 15 000 0,03522 28 20 17,3 1 BK2220 JR17x22x23 15,3 25,5 9 600 15 000 0,04

25 25 32 12 1 HK2512 10,9 14,7 8 510 13 000 0,02325 32 12 9,3 1 BK2512 10,9 14,7 8 510 13 000 0,02525 32 16 1 HK2516 JR20x25x17 15,6 23,5 8 510 13 000 0,02825 32 16 13,3 1 BK2516 JR20x25x17 15,6 23,5 8 510 13 000 0,03225 32 20 1 HK2520 JR20x25x20,5 20,6 33,4 8 510 13 000 0,03925 32 20 17,3 1 BK2520 JR20x25x20,5 20,6 33,4 8 510 13 000 0,04325 32 26 1 HK2526 JR20x25x26,5 25,7 44,4 8 510 13 000 0,04625 32 26 23,3 1 BK2526 JR20x25x26,5 25,7 44,4 8 510 13 000 0,0525 32 38 1 HK2538 JR20x25x38,5 35,3 66,9 8 510 13 000 0,07325 32 38 35,3 1 BK2538 JR20x25x38,5 35,3 66,9 8 510 13 000 0,077

28 28 35 16 1 HK2816 JR22x28x17 15,9 24,9 7 540 12 000 0,03428 35 16 13,3 1 BK2816 JR22x28x17 15,9 24,9 7 540 12 000 0,03828 35 20 1 HK2820 JR22x28x20,5 20,9 35,3 7 540 12 000 0,04228 35 20 17,3 1 BK2820 JR22x28x20,5 20,9 35,3 7 540 12 000 0,047

30 30 37 12 1 HK3012 12,0 17,7 7 000 11 000 0,02430 37 12 9,3 1 BK3012 11,6 16,8 7 000 11 000 0,0330 37 16 1 HK3016 JR25x30x17 16,8 27,3 7 000 11 000 0,03830 37 16 13,3 1 BK3016 JR25x30x17 16,8 27,3 7 000 11 000 0,04130 37 20 1 HK3020 JR25x30x20,5 22,4 39,6 7 000 11 000 0,04730 37 20 17,3 1 BK3020 JR25x30x20,5 22,4 39,6 7 000 11 000 0,05330 37 26 1 HK3026 JR25x30x26,5 27,4 51,2 7 000 11 000 0,06130 37 26 23,3 1 BK3026 JR25x30x26,5 27,4 51,2 7 000 11 000 0,06730 37 38 1 HK3038 JR25x30x38,5 38,4 79,2 7 000 11 000 0,08730 37 38 35,3 1 BK3038 JR25x30x38,5 38,4 79,2 7 000 11 000 0,093

35 35 42 12 1 HK3512 13,0 20,6 5 940 9 100 0,03435 42 16 1 HK3516 JR30x35x17 17,4 29,9 5 940 9 100 0,04635 42 20 1 HK3520 JR30x35x20,5 24,5 46,8 5 940 9 100 0,05735 42 20 17,3 1 BK3520 JR30x35x20,5 24,5 46,8 5 940 9 100 0,063

40 40 47 12 1 HK4012 14,7 25,3 5 160 7 900 0,03640 47 16 1 HK4016 JR35x40x17 18,9 34,8 5 160 7 900 0,04840 47 20 1 HK4020 JR35x40x20,5 25,1 50,4 5 160 7 900 0,0640 47 20 17,3 1 BK4020 JR35x40x20,5 25,1 50,4 5 160 7 900 0,066

45 45 52 16 1 HK4516 JR40x45x17 19,8 38,5 4 560 7 000 0,05445 52 20 1 HK4520 JR40x45x20,5 27,2 58,2 4 560 7 000 0,06745 52 20 17,3 1 BK4520 JR40x45x20,5 26,3 55,4 4 560 7 000 0,073

50 50 58 20 1 HK5020 JR45x50x20 30,9 62,2 4 120 6 300 0,08250 58 25 1 HK5025 JR45x50x25,5 35,5 74,1 4 120 6 300 0,104

60 60 68 12 1 HK6012 17,2 31,2 3 400 5 200 0,06

Open Ends,Closed At One EndMetric Series

C

D

r

Fw

HK BK


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3

D

C

r

Fw D

C

r

Fw

Shaft Dimensions Bearing Inner Ring Load ratings Limiting MassDiameter Fw D C rs min Designation Designation dynamic static Speed Approx.

-0,3 Open ends C C0 Greasemm kN rpm kg

12 12 18 14 1 HK1214RS 6,61 7,29 14 400 0,01312 18 16 1 HK1216.2RS 6,87 7,65 14 400 0,016

14 14 20 14 1 HK1414RS JR10x14x16 7,17 8,41 13 900 0,01514 20 16 1 HK1416.2RS JR10x14x20 7,17 8,41 13 900 0,018

15 15 21 14 1 HK1514RS JR12x15x16,5 7,87 9,69 13 000 0,01615 21 16 1 HK1516.2RS JR12x15x16,5 7,87 9,69 13 000 0,019

16 16 22 14 1 HK1614RS JR12x16x16 7,82 9,76 12 100 0,01716 22 16 1 HK1616.2RS JR12x16x20 7,82 9,76 12 100 0,02


20 20 26 16 1 HK2016.2RS JR17x20x16,5 8,97 12,5 9 700 0,02320 26 18 1 HK2018RS JR17x20x20,5 12,4 18,9 9 700 0,02520 26 20 1 HK2020.2RS JR17x20x20,5 12,4 18,9 9 700 0,028

22 22 28 16 1 HK2216.2RS 9,81 14,5 8 800 0,02522 28 18 1 HK2218RS JR17x22x23 13,1 20,9 8 800 0,02722 28 20 1 HK2220.2RS JR17x22x23 13,1 20,9 8 800 0,031

25 25 32 14 1 HK2514RS JR20x25x17 10,9 14,7 7 800 0,02725 32 16 1 HK2516.2RS JR20x25x17 11,1 15,1 7 800 0,0325 32 18 1 HK2518RS JR20x25x20,5 16,2 24,6 7 800 0,02825 32 20 1 HK2520.2RS JR20x25x20,5 16,2 24,6 7 800 0,03225 32 22 1 HK2522RS JR20x25x26 20,6 33,4 7 800 0,04225 32 24 1 HK2524.2RS JR20x25x26 20,6 33,4 7 800 0,047

28 28 35 20 1 HK2820.2RS JR22x28x20,5 15,9 24,9 6 900 0,042

30 30 37 16 1 HK3016.2RS JR25x30x17 11,6 16,8 6 500 0,03830 37 18 1 HK3018RS JR25x30x20,5 16,8 27,3 6 500 0,04230 37 20 1 HK3020.2RS JR25x30x20,5 16,8 27,3 6 500 0,04730 37 22 1 HK3022RS JR25x30x26 22,4 39,6 6 500 0,05130 37 24 1 HK3024.2RS JR25x30x26 22,4 39,6 6 500 0,057

35 35 42 16 1 HK3516.2RS JR30x35x17 13,4 21,4 5 500 0,04735 42 18 1 HK3518RS JR30x35x20,5 17,4 29,9 5 500 0,05435 42 20 1 HK3520.2RS JR30x35x20,5 17,4 29,9 5 500 0,064

40 40 47 16 1 HK4016.2RS JR35x40x20 13,4 21,4 4 900 0,04940 47 18 1 HK4018RS JR35x40x20,5 18,9 34,8 4 900 0,05740 47 20 1 HK4020.2RS JR35x40x20,5 18,9 34,8 4 900 0,066



Sealed BearingsMetric Series

HK RS HK .2RS


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IDENTIFICATIONThe prefix letter or letters in inch series drawn cup bearingdesignation denote whether the bearings are made with a fullcomplement of needle rollers or caged needle rollers. Theuse of full complement of needle rollers is indicated by theprefix code letter B and for use of caged needle rollers by theprefix code letter J.

Inch bearings are available in either of two radial cross-sections. The larger cross-section is indicated by the prefixcode letter H. Absence of the letter H indicates the smallerradial cross section.

These major features of dimension and construction aresummarized in Table 1.

Table 1 –Identifying letters – Inch series

Prefix letters inBearing Designation

Smaller Largerroller roller

Full complement(mechanicallyretained) B BH

Caged J JH

Other prefix letters denoting major construction features are:M - closed end styleP - open end (finger)cageT - single seal

TT - double sealG - extra-precision

DRAWN CUP NEEDLE ROLLER BEARINGS -INCH SERIESWhen a rolling bearing is needed for a compact and eco-nomical design and where it is not practical to harden andgrind the housing bore, or where the housing materials areof low rigidity such as cast iron, aluminum or even plastics,drawn cup needle roller bearings should be considered.

Reference standards:• ANSI/ABMA 18.2 - Needle roller bearings – Radial, inch design.

Before selecting specific inch series drawn cup needleroller bearings, the Needle Bearing Engineering section ofthis catalog should be reviewed.

Types of inch series drawn cup needle roller bearings

Full complement bearings Caged bearings

B M J JTT

In addition, there can be other identifying letters whichcover special modification. Please consult a local Timken salesengineer when special modifications are required.

Since the entire identification code in the bearing designa-tion may not appear on the bearing itself, the manufacturer’sparts list or another reliable source should always be consultedwhen ordering bearings for service or field replacement tomake certain that the correct bearing with the correct lubricantis used.

CONSTRUCTION

FULL COMPLEMENT BEARINGSThe original drawn cup needle roller bearing, as invented andintroduced by Torrington, employs a full complement of needlerollers. The full complement drawn cup bearing combinesmaximum load carrying capability and low cost with the advan-tages of the drawn outer ring. The inward turned lips of the cup are used to mechanicallyretain the full complement of needle rollers, providing theirpositive radial retention even though it may be necessary toremove the shaft repeatedly during servicing of the mecha-nism employing the bearing.


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CAGED BEARINGSThe one-piece steel cage, used in most Timken Torringtoncaged drawn cup bearings, is designed to provide rigidityand minimize wear. This cage design separates the rollerguiding and roller retain-ment functions. The portions of thecage that retain the rollers cannot contact the rollers whilethe bearing is operating. Thus, there is no wear which mightaffect roller retention.

The cage contacts the rollers only near their ends at theroller pitch line, so accurate guidance is achieved with leasteffort. Pitch line guidance at the ends of the rollers preventsskewing and assures roller stability, with little stress on thecage itself. The design minimizes the contact area and forcerequired for roller guidance, and thus minimizes drag be-tween cage and rollers.

The same design feature which assures no contactbetween roller retention bars and rollers while the bearing isoperating also provides ample clearance along the length ofthe roller to enhance the circulation of lubricant.

Torrington also has available bearings with other cagedesigns. Bearings with engineered polymer cages are foruse where operating conditions permit. Before applyingbearings with engineered polymer cages, please consultTimken Engineering.

SEALED BEARINGSTorrington drawn cup caged needle roller bearings areoffered with integral seals. The tables of dimensions onpages 420-421 indicate those sizes available with lip contactseals which limit the bearing operating temperature between-25°F and 225°F. The seal lip design achieves a light andconstant contact with the shaft throughout the range ofmounting bear-ing clearances thereby ensuring positivesealing and low frictional drag.

Sealed drawn cup bearings are intended to retaingrease or non-pressurized oil within a bearing while alsopreventing contaminants from entering the raceway area.

Details of shaft design for sealed bearings are given inthe Needle Bearing Engineering section.

The standard lip contact seals are compatible withcommon lubricating oils and petroleum based fuels, but theyare adversely affected by certain fire-resistant hydraulicfluids and most common solvents.

If the operating temperature must be outside of thespecified range, or if the seals are exposed to unusual fluids,please consult Timken Engineering.

DIMENSIONAL ACCURACY ANDMOUNTING DIMENSIONSManufacturing Tolerances and Resulting Clearances

BEARING MOUNTING FITS ANDRADIAL INTERNAL CLEARANCEDrawn cup bearings are manufactured to a degree of preci-sion that will satisfy the radial clearance requirements ofmost applications. The total radial clearance of an installeddrawn cup bearing results from the build up of manufacturingtolerances of the housing bore, inner raceway o.d. and thebearing, as well as the minimum radial clearance required forthe application.

For bearings of nominal inch dimensions, the recom-mended mounting dimensions will provide correct runningclearance for most applications. Closer control of radialclearance would be governed by the user’s capability ofholding housing and shaft raceway dimensional tolerancestighter than the limits shown on the tabular pages.

The drawing illustrates the manufacturing tolerancesand resulting clearances applying to medium size drawn cupbearings in rotating applications when using the recom-mended tabulated mounting dimensions.

Radial clearance in a mounted bearing may be moreclosely controlled by reducing the manufacturing tolerancesof the housing bore and inner raceway diameter. Whereextremely close control of radial clearance is required forbearings of nominal inch dimensions, extra-precision fullcomplement bearings are available (see page 418).

C A G E R O TAT ION

S H A F T R O TAT ION

ROLLER ROTATION

AMPLELUBRICANTSTORAGE

ROLLER ROTATIONDISTRIBUTES LUBRICANT

TO ALL CONTACT SURFACES

Manufacturing tolerancefor bearing .0009 in.

Housing boretolerance .0010 in.

reference:J-1616bearing

Shaft diametertolerance .0005 in.

Min. initial radialclearance .0005 in.


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TOLERANCES FOR HOUSING MATERIALSOF LOW RIGIDITYFor housing materials of low rigidity, or steel housings ofsmall section, it is recommended that for initial trial thehousing bore diameters given in the tabular pages bereduced by the amounts shown in Table 3. To maintainnormal radial internal clearance, the inner raceway diametertolerance given in the tabular pages should be used.

Table 3 –Low Rigidity Housing Bore

Nom. Housing Bore Subtractinch inch

over incl

0 .38 .0004.38 1.00 .0006

1.00 2.00 .00102.00 3.00 .0012

3.00 6.00 .0014

OUTER RING ROTATIONFor applications where the outer ring rotates with respect tothe load, it is recommended that both the housing bore andinner raceway diameter be reduced. Bearings of nominalinch dimensions should have the housing bore and innerraceway diameters reduced by .0005”.

OSCILLATING MOTIONApplications involving oscillating motion often require reducedradial clearances. This reduction is accomplished by increas-ing the shaft raceway diameters as shown in Table 4.

Table 4 –Nominal inch bearing oscillating shaft size

Shaft Size Add

inch inch

.094 to .188 .0003 .25 to 1.875 .0005

2 to 5.5 .0006

INNER RINGSWhere it becomes impractical to meet the shaft raceway de-sign requirements (hardness, case depth, surface finish, etc.)outlined in the Needle Bearing Engineering section, standardinner rings for drawn cup bearings are available. These aretabulated on pages 422-425 of the drawn cup section. Inner rings for drawn cup bearings are designed to be aloose transition fit on the shaft and should be clamped againsta shoulder. If a tight transition fit must be used to keep theinner ring from rotating relative to the shaft, the inner ring o.d.,as mounted, must not exceed the raceway diameters requiredby the drawn cup bearing for the particular application. Seethe previous discussion on internal clearances and fits forfurther details on inner raceway diameter choice.

LUBRICATIONInch series drawn cup bearings can be furnished with an oilhole (centered in the drawn cup) to facilitate relubrication.If desired, specify on order by adding an -OH suffix to thebearing designation. For general information regarding lubrication of drawn cupbearings refer to page E88.

LOAD RATING FACTORSDynamic loadsDrawn cup needle roller bearings can accommodate only radialloads.

P = Fr

P = The maximum dynamic radial load that may beapplied to a drawn cup bearing based on the dynamicload rating, C given in the tabular pages. This loadshould be < C/3.

Static loads

f0 = C0

P0

f0 – static load safety factor

C0 – basic static load rating

P0 – maximum applied static loadTo ensure satisfactory operation of drawn cup needleroller bearings under all types of conditions the static loadsafety factor f0 should be > 3.

Adjusted rating lifeWhen application data includes details of operating tempera-ture, oil viscosity, operating speed and the applied load meetsthe < C/3 condition adjusted rating life may be evaluated usingthe information given on pages E81 to E87 of this catalog.


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INSPECTION PROCEDURESAlthough the bearing cup (outer ring) is accurately drawn fromstrip steel it may go out of round during heat treatment. Whenthe bearing is pressed into a true, round housing or ring gageof correct size and wall thickness, it becomes round and issized properly. For this reason, it is incorrect to inspect anunmounted drawn cup bearing by measuring the o.d. Thecorrect method for inspecting the bearing size is to:

1. press the bearing into a ring gage of proper size.

2. plug the bearing bore with the appropriate “go” and “no go”gages.

Table 2 provides the correct ring and plug gage diametersfor inspecting Timken Torrington drawn cup needle rollerbearings. When the letter H appears in the columns headed“Bearing Bore Designation” and “Nominal Shaft Diameter”, thegage sizes listed are for the larger cross section bearingswhich include H in their bearing designation prefix.

ExampleFind the ring gage and plug gage dimensions for a BH-68bearing.

The nominal bore diameter (Fw) for this bearing, asshown in the table of dimensions on page 406, is .3750 inch.Since the letter H appears in the bearing designation, thefollowing information will be found opposite H6 .3750 inTable 2.

inch

ring gage .6255diameter under needle rollers, min. .3765diameter under needle rollers, max. .3774

The “go” plug gage is the same size as the minimumneedle roller complement bore diameter and the “no go” pluggage size is .0001 inch larger than the maximum borediameter. Therefore the correct ring and plug gage dimen-sions are:

inch

ring gage .6255plug gage, “go” .3765plug gage, “no go” .3775

These same gage dimensions also apply to JH-68.

Table 2 –Inch Series Bearings

Bearing Nominal Nominal Dimensions - inchBore Shaft Bore Ring Needle Roller

Designation Diameter Diameter Gage Complement Bore Diameter

inch min. max.

2 1⁄ 8 .1250 .2505 .1258 .12672 1⁄ 2 5⁄ 32 .1562 .2817 .1571 .1580

3 3⁄ 16 .1875 .3437 .1883 .18924 1⁄ 4 .2500 .4380 .2515 .25245 5⁄ 16 .3125 .5005 .3140 .3149

H 5 H 5⁄ 16 .3125 .5630 .3140 .31496 3⁄ 8 .3750 .5630 .3765 .3774

H 6 H 3⁄ 8 .3750 .6255 .3765 .37747 7⁄ 16 .4375 .6255 .4390 .4399

H 7 H 7⁄ 16 .4375 .6880 .4390 .4399

8 1⁄ 2 .5000 .6880 .5015 .5024H 8 H 1⁄ 2 .5000 .7505 .5015 .5024

9 9⁄ 16 .5625 .7505 .5640 .5649H 9 H 9⁄ 16 .5625 .8130 .5640 .564910 5⁄ 8 .6250 .8130 .6265 .6274

H10 H 5⁄ 8 .6250 .8755 .6265 .627411 11⁄ 16 .6875 .8755 .6890 .6899

H11 H 11⁄ 16 .6875 .9380 .6890 .689912 3⁄ 4 .7500 .9995 .7505 .7514

H12 H 3⁄ 4 .7500 1.0620 .7505 .7514

13 13⁄ 16 .8125 1.0620 .8130 .8139H13 H 13⁄ 16 .8125 1.1245 .8130 .8139

14 7⁄ 8 .8750 1.1245 .8755 .8764H14 H 7⁄ 8 .8750 1.1870 .8755 .8764

15 15⁄ 16 .9375 1.1870 .9380 .9389

16 1 1.0000 1.2495 1.0005 1.0014H16 H 1 1.0000 1.3120 1.0005 1.0014

17 1 1⁄ 16 1.0625 1.3120 1.0630 1.063918 1 1⁄ 8 1.1250 1.3745 1.1255 1.1264

H18 H 1 1⁄ 8 1.1250 1.4995 1.1255 1.1264

19 1 3⁄ 16 1.1875 1.4995 1.1880 1.188920 1 1⁄ 4 1.2500 1.4995 1.2505 1.2514

H20 H 1 1⁄ 4 1.2500 1.6245 1.2505 1.251421 1 5⁄ 16 1.3125 1.6245 1.3130 1.314022 1 3⁄ 8 1.3750 1.6245 1.3755 1.3765

H22 H 1 3⁄ 8 1.3750 1.7495 1.3755 1.376524 1 1⁄ 2 1.5000 1.8745 1.5005 1.501626 1 5⁄ 8 1.6250 1.9995 1.6255 1.626628 1 3⁄ 4 1.7500 2.1245 1.7505 1.751730 1 7⁄ 8 1.8750 2.2495 1.8755 1.8767

32 2 2.0000 2.3745 2.0006 2.0018H33 H 2 1⁄ 16 2.0625 2.5307 2.0635 2.0649

34 2 1⁄ 8 2.1250 2.4995 2.1256 2.127036 2 1⁄ 4 2.2500 2.6245 2.2506 2.2520

42 2 5⁄ 8 2.6250 2.9995 2.6260 2.627444 2 3⁄ 4 2.7500 3.1245 2.7510 2.752456 3 1⁄ 2 3.5000 3.9995 3.5010 3.502488 5 1⁄ 2 5.5000 5.9990 5.5010 5.5029

Bearing bore should be checked with “go” and “no go” pluggages. The “go” gage size is the minimum needle rollercomplement bore diameter. The “no go” gage size is largerthan the maximum needle roller complement bore diameterby 0.0001 inch.


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INSTALLATION OF DRAWN CUP BEARINGSGeneral Installation requirements• A drawn cup bearing must be pressed into its housing.• An installation tool, similar to the ones shown, must be used

in conjunction with a standard press.• The bearing must not be hammered into its housing, even in

conjunction with the proper assembly mandrel.• The bearing must not be pressed tightly against a shoulder

in the housing.

C

15°

A

D

E

B

Stamped endof bearing

Generous chamferor rounding foreasy bearinginstallation

A – 1⁄ 64" less than housing bore

B – .003" less than shaft diameter

C – distance bearing will be inset intohousing, minimum of .008"

D – pilot length should be length ofbearing less 1⁄ 32"

E – approximately 1⁄ 2 D

• If it is necessary to use a shouldered housing, the depth ofthe housing bore must be sufficient to ensure the housingshoulder fillet, as well as the shoulder face, clears thebearing.

• The installation tool must be coaxial with the housing bore.

Installation of Open End BearingsIt is advisable to utilize a positive stop on the press tool tolocate the bearing properly in the housing. The assembly toolshould have a leader or a pilot, as shown, to aid in starting thebearing true in the housing. The ball detent shown on thedrawing is used to assist in aligning the rollers of a fullcomplement bearing during installation and to hold thebearing on the installation tool. A caged type drawn cup

bearing does not require a ball detent to align its rollers.The ball detent may still be used to hold the bearing on theinstallation tool or an “O” ring may be used as shown in thedrawing on page 393.The bearing should be installed with thestamped end (the end with identification markings) against theangled shoulder of the pressing tool.


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INSTALLATION OF CLOSED END BEARINGSThe installation tool combines all the features of the tool usedto install open end bearings, but the pilot is spring loaded andis part of the press bed.

The angled shoulder of the pressing tool should bearagainst the closed end with the bearing held on the pilot to aidin starting the bearing true in the housing.

A – 1⁄ 64" less than housing boreB – .003" less than shaft diameterC – distance bearing will be inset into housing,

minimum of .008"

EXTRACTION OF DRAWN CUP BEARINGSThe need to extract a drawn cup bearing does not arise often.Standard extractor tools may be purchased from a reputablemanufacturer. Customers may produce the special extractiontools at their own facilities. In certain cases, Timken Engineer-ing may assist, particularly when a drawn cup bearing ap-pears to have failed and a full analysis is required. Afterextraction, the drawn cup bearing should not be reused.

Extraction from a Straight HousingWhen it is necessary to extract a drawn cup bearing from astraight housing, a similar tool to the installation tool, butwithout the stop, may be used. To avoid damage to thebearing, pressure should be applied against the stamped endof the bearing, just as it is done at installation.


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Extraction from a Shouldered or Dead End Housing(with space between the bearing and the housingshoulder)Bearings may be extracted from shouldered or dead endhousings with a common bearing puller tool as shown. Thistype of tool is slotted in two places at right angles to form fourprongs. The four puller prongs are pressed together andinserted into the space between the end of the bearing andthe shoulder. The prongs are forced outward by inserting theexpansion rod, and then the bearing is extracted. Do notreuse the bearing after extraction.

Extraction from a Shouldered Housing(with bearing pressed up close to the shoulder)The tool to be used, as shown, is of a similar type describedfor a shouldered or dead end housing, but the rollers mustfirst be removed from the bearing.

The four segment puller jaws are collapsed and slippedinto the empty cup. The jaws are then forced outward into thecup bore by means of the tapered expansion rod. The jawsshould bear on the lip as near as possible to the cup bore.The cup is then pressed out from the top.


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406

Full Complement

Bearing

Caged Bearing

SH

shaft surface to be58 HRC or equivalent

XD

C C

FWFW

Shaft Dimensions Full Complement Bearings

Dia. Fw D C Bearing Load Rating Limiting X MassDesignation Dynamic Static Speed Approx.

C C0 open closedGrease oil ends end

+0.000 open closed-0.010 ends end (max.)inch lbf rpm inch lbs

1⁄8 .1250 .2500 0.188 — — — — — — — .002 —.1250 .2500 0.250 B-24 — 388 366 8 100 13 000 — .002 —

5⁄32 .1563 .2812 0.188 — — — — — — — — —.1563 .2812 0.250 B-2 1⁄2 4 — 447 453 7 000 11 000 — .002 —.1563 .2812 0.312 B-2 1⁄2 5 — 581 634 7 000 11 000 — .003 —

3⁄16 .1875 .3438 0.250 B-34 M-341 498 480 7 000 11 000 0.07 .003 .004.1875 .3438 0.375 B-36 M-361 846 948 7 000 11 000 0.07 .005 .006

1⁄4 .2500 .4375 0.250 B-44 M-441 615 591 6 500 10 000 0.08 .005 .006.2500 .4375 0.312 B-45 M-451 799 826 6 500 10 000 0.08 .007 .008.2500 .4375 0.375 B-46 — 1 020 1 130 6 500 10 000 — .008 —.2500 .4375 0.438 B-47 M-471 1 240 1 450 6 500 10 000 0.08 .009 .011

5⁄16 .3125 .5000 0.312 B-55 M-551 918 1 030 5 400 8 300 0.08 .008 .009.3125 .5000 0.375 B-56 — 1 180 1 430 5 400 8 300 — .010 —.3125 .5000 0.438 B-57 M-571 1 420 1 810 5 400 8 300 0.08 .011 .013.3125 .5000 0.562 B-59 — 1 880 2 600 5 400 8 300 — .014 —.3125 .5625 0.438 BH-57 MH-571 1 580 1 650 7 500 12 000 0.09 .016 .018.3125 .5625 0.562 BH-59 — 2 130 2 420 7 500 12 000 — .020 —

3⁄8 .3750 .5625 0.312 B-65 M-651 1 020 1 240 4 600 7 100 0.08 .009 .010.3750 .5625 0.375 B-66 M-661 1 310 1 700 4 600 7 100 0.08 .011 .012.3750 .5625 0.438 B-67 — 1 580 2 180 4 600 7 100 — .013 —.3750 .5625 0.500 B-68 M-681 1 840 2 650 4 600 7 100 0.08 .015 .017.3750 .5625 0.562 B-69 — 2 100 3 130 4 600 7 100 — .016 —.3750 .5625 0.625 B-610 M-6101 2 340 3 590 4 600 7 100 0.08 .018 .021.3750 .6250 0.500 BH-68 — 2 100 2 460 6 500 10 000 — .021 —

B,BH M-1, MH-1

Full Complement BearingsOpen Ends, Closed at One EndInch SeriesCheck for availability.


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Y

D

C C

Inch Series

FW FW

J,JH MJ-1, MJH-1

Bearing Mounting Caged Retained Bearings

Bearing Load Ratings Limiting Y MassS H Designation Dynamic Static Speed Approx.

C C0 Grease Oil open closedinches inches open closed ends end

ends end (max.)max. min. min. max. lbf rpm inch lbs

0.1250 0.1247 0.2500 0.2505 JP-23-F — 201 137 33 000 51 000 — 0.001 —0.1250 0.1247 0.2500 0.2505 — — — — — — — — —

0.1563 0.1560 0.2812 0.2817 JP-2 1⁄2 3-F — 206 144 31 000 47 000 — 0.001 —0.1563 0.1560 0.2812 0.2817 — — — — — — — — —0.1563 0.1560 0.2812 0.2817 — — — — — — — — —

0.1875 0.1872 0.3432 0.3437 — — — — — — — — —0.1875 0.1872 0.3432 0.3437 J-36 MJ-361 513 432 25 000 38 000 0.04 0.004 0.005

0.2500 0.2495 0.4370 0.4380 — — — — — — — — —0.2500 0.2495 0.4370 0.4380 J-45 MJ-451 498 391 20 000 30 000 0.04 0.006 0.0070.2500 0.2495 0.4370 0.4380 — — — — — — — — —0.2500 0.2495 0.4370 0.4380 J-47 MJ-471 764 676 20 000 30 000 0.04 0.008 0.009

0.3125 0.3120 0.4995 0.5005 J-55 — 540 453 18 000 28 000 — 0.007 —0.3125 0.3120 0.4995 0.5005 — — — — — — — — —0.3125 0.3120 0.4995 0.5005 J-57 MJ-571 906 881 18 000 28 000 0.04 0.009 0.0110.3125 0.3120 0.4995 0.5005 — — — — — — — — —0.3125 0.3120 0.5620 0.5630 JH-57 MJH-571 1 040 845 14 000 22 000 0.04 0.013 0.0160.3125 0.3120 0.5620 0.5630 — — — — — — — — —

0.3750 0.3745 0.5620 0.5630 J-65 MJ-651 615 560 18 000 27 000 0.04 0.008 0.0090.3750 0.3745 0.5620 0.5630 J-66 MJ-661 794 778 18 000 27 000 0.04 0.009 0.0100.3750 0.3745 0.5620 0.5630 — — — — — — — — —0.3750 0.3745 0.5620 0.5630 J-68 MJ-681 1 170 1 290 18 000 27 000 0.04 0.012 0.0130.3750 0.3745 0.5620 0.5630 — — — — — — — — —0.3750 0.3745 0.5620 0.5630 — — — — — — — — —0.3750 0.3745 0.6245 0.6255 JH-68 — 1 480 1 370 13 000 20 000 — 0.017 —

Mounting dimensions are based on the inner ring rotating and theouter ring being stationary relative to the load. The housing shouldbe of high strength material. See pages E115-E116 for discussion ofshaft and housing design.

Caged BearingsOpen Ends, Closed at One EndInch SeriesCheck for availability.

Drawn cup bearings of nominal inch dimensions with one closed end, which are nottabulated, may be made available upon request.

Caged drawn cup bearings of nominal inch dimensions, with an engineered polymercage, may be made available upon request.


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C C0 open closedGrease oil ends end

+0.000 open closed-0.010 ends end (max.)

inch lbf rpm inch lbs

7⁄ 16 .4375 .6250 0.375 B-76 — 1 430 1 990 4 100 6 300 — 0.012 —.4375 .6250 0.438 B-77 — 1 730 2 540 4 100 6 300 — 0.015 —.4375 .6250 0.500 B-78 M-781 2 020 3 100 4 100 6 300 0.08 0.017 0.019.4375 .6250 0.625 B-710 — 2 550 4 200 4 100 6 300 — 0.021 —.4375 .6875 0.500 BH-78 — 2 320 2 870 5 700 8 800 — 0.023 —

1⁄ 2 .5000 .6875 0.312 B-85 M-851 1 200 1 650 3 600 5 600 0.08 0.012 0.014.5000 .6875 0.375 B-86 M-861 1 540 2 280 3 600 5 600 0.08 0.014 0.016.5000 .6875 0.438 B-87 M-871 1 870 2 920 3 600 5 600 0.08 0.016 0.018.5000 .6875 0.500 B-88 M-881 2 170 3 530 3 600 5 600 0.08 0.019 0.021.5000 .6875 0.625 B-810 M-8101 2 750 4 790 3 600 5 600 0.08 0.023 0.026.5000 .6875 0.750 B-812 M-8121 3 300 6 060 3 600 5 600 0.08 0.028 0.031.5000 .7500 0.438 BH-87 — 2 130 2 650 5 100 7 900 — 0.023 —.5000 .7500 0.500 BH-88 — 2 510 3 280 5 100 7 900 — 0.026 —.5000 .7500 0.625 BH-810 — 3 230 4 540 5 100 7 900 — 0.033 —.5000 .7500 0.750 BH-812 MH-8121 3 910 5 790 5 100 7 900 0.09 0.039 0.044

9⁄ 16 .5625 .7500 0.312 B-95 M-951 1 290 1 870 3 300 5 000 0.08 0.013 0.014.5625 .7500 0.375 B-96 M-961 1 650 2 570 3 300 5 000 0.08 0.015 0.018.5625 .7500 0.438 B-97 M-971 1 990 3 280 3 300 5 000 0.08 0.018 0.021.5625 .7500 0.500 B-98 M-981 2 320 3 990 3 300 5 000 0.08 0.020 0.023.5625 .7500 0.625 B-910 M-9101 2 940 5 400 3 300 5 000 0.08 0.026 0.029.5625 .7500 0.750 B-912 M-9121 3 520 6 820 3 300 5 000 0.08 0.031 0.034.5625 .8125 0.500 BH-98 — 2 690 3 700 4 600 7 100 — 0.029 —.5625 .8125 0.625 BH-910 — 3 460 5 110 4 600 7 100 — 0.036 —.5625 .8125 0.750 BH-912 — 4 190 6 520 4 600 7 100 — 0.043 —

5⁄ 8 .6250 .8125 0.312 B-105 M-1051 1 360 2 080 3 000 4 500 0.08 0.014 0.016.6250 .8125 0.438 B-107 M-1071 2 110 3 650 3 000 4 500 0.08 0.020 0.022.6250 .8125 0.500 B-108 M-1081 2 450 4 430 3 000 4 500 0.08 0.022 0.023.6250 .8125 0.625 B-1010 M-10101 3 110 6 000 3 000 4 500 0.08 0.028 0.032.6250 .8125 0.750 B-1012 M-10121 3 720 7 570 3 000 4 500 0.08 0.034 0.038


Full Complement

Bearing

Caged Bearing

SH


XD

C C

FWFW

B,BH M-1, MH-1


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409

3






0.4375 0.4370 0.6245 0.6255 — — — — — — — — —0.4375 0.4370 0.6245 0.6255 — — — — — — — — —0.4375 0.4370 0.6245 0.6255 J-78 MJ-781 1 430 1 730 17 000 26 000 0.04 0.014 0.0160.4375 0.4370 0.6245 0.6255 — — — — — — — — —0.4375 0.4370 0.6870 0.6880 JH-78 — 1 860 1 880 13 000 19 000 — 0.019 —

0.5000 0.4995 0.6870 0.6880 J-85 MJ-851 778 824 16 000 25 000 0.04 0.010 0.0120.5000 0.4995 0.6870 0.6880 J-86 MJ-861 1 050 1 210 16 000 25 000 0.04 0.011 0.0130.5000 0.4995 0.6870 0.6880 — — — — — — — — —0.5000 0.4995 0.6870 0.6880 J-88 MJ-881 1 420 1 290 16 000 25 000 0.04 0.015 0.0180.5000 0.4995 0.6870 0.6880 — — — — — — — — —0.5000 0.4995 0.6870 0.6880 J-812 — 2 300 3 310 16 000 25 000 — 0.023 —0.5000 0.4995 0.7495 0.7505 JH-87 MJH-871 1 440 1 390 12 000 19 000 0.04 0.019 0.0230.5000 0.4995 0.7495 0.7505 JH-88 MJH-881 1 700 1 730 12 000 19 000 0.04 0.022 0.0260.5000 0.4995 0.7495 0.7505 — — — — — — — — —0.5000 0.4995 0.7495 0.7505 JH-812 — 2 770 3 240 12 000 19 000 — 0.032 0.035

0.5625 0.5620 0.7495 0.7505 — — — — — — — — —0.5625 0.5620 0.7495 0.7505 — — — — — — — — —0.5625 0.5620 0.7495 0.7505 J-97 MJ-971 1 230 1 530 16 000 25 000 0.04 0.016 0.0190.5625 0.5620 0.7495 0.7505 J-98 MJ-981 1 400 1 800 16 000 25 000 0.04 0.017 0.0200.5625 0.5620 0.7495 0.7505 J-910 — 1 310 1 620 16 000 25 000 — 0.021 —0.5625 0.5620 0.7495 0.7505 — — — — — — — — —0.5625 0.5620 0.8120 0.8130 JH-98 MJH-981 1 800 1 910 12 000 18 000 0.04 0.025 0.0300.5625 0.5620 0.8120 0.8130 — — — — — — — — —0.5625 0.5620 0.8120 0.8130 — — — — — — — — —

0.6250 0.6245 0.8120 0.8130 — — — — — — — — —0.6250 0.6245 0.8120 0.8130 — — — — — — — — —0.6250 0.6245 0.8120 0.8130 J-108 MJ-1081 1 510 2 050 13 000 21 000 0.04 0.019 0.0230.6250 0.6245 0.8120 0.8130 J-1010 MJ-10101 1 980 2 910 13 000 21 000 0.04 0.023 0.0280.6250 0.6245 0.8120 0.8130 J-1012 MJ-10121 2 640 4 240 13 000 21 000 0.04 0.028 0.033

Drawn cup bearings of nominal inch dimensions with one closed end,which are not tabulated, may be made available upon request.

Caged drawn cup bearings of nominal inch dimensions, with anengineered polymer cage, may be made available upon request.

Mounting dimensions are based on the inner ring rotating and the outer ring beingstationary relative to the load. The housing should be of high strength material. Seepages E115-E116 for discussion of shaft and housing design.

Y

D

C C

Inch Series

FW FW

J,JH MJ-1, MJH-1


p385_444serv3_03.pm65 1/14/04, 8:41 AM409

410



C C0 open closed Grease oil ends end



5⁄8 .6250 .8745 0.500 BH-108 MH-1081 2 860 4 110 4 200 6 500 0.09 0.031 0.035.6250 .8745 0.625 BH-1010 — 3 680 5 680 4 200 6 500 — 0.039 —.6250 .8745 0.750 BH-1012 — 4 450 7 250 4 200 6 500 — 0.047 —.6250 .8745 1.000 BH-1016 — 5 890 10 400 4 200 6 500 — 0.062 —

11⁄16 .6875 .8745 0.375 B-116 M-1161 1 840 3 140 2 700 4 200 0.08 0.018 0.020.6875 .8745 0.500 B-118 M-1181 2 580 4 880 2 700 4 200 0.08 0.024 0.027.6875 .8745 0.625 B-1110 M-11101 3 270 6 610 2 700 4 200 0.08 0.030 0.034.6875 .8745 0.750 B-1112 M-11121 3 920 8 340 2 700 4 200 0.08 0.036 0.041.6875 .9375 0.438 BH-117 — 2 560 3 650 3 900 6 000 — 0.030 —.6875 .9375 0.625 BH-1110 MH-11101 3 890 6 250 3 900 6 000 0.09 0.042 0.047.6875 .9375 0.750 BH-1112 — 4 700 7 980 3 900 6 000 — 0.051 —

3⁄4 .7500 1.0000 0.375 B-126 M-1261 2 180 3 050 3 600 5 600 0.09 0.027 0.031.7500 1.0000 0.500 B-128 M-1281 3 170 4 940 3 600 5 600 0.09 0.036 0.041.7500 1.0000 0.625 B-1210 M-12101 4 080 6 820 3 600 5 600 0.09 0.045 0.052.7500 1.0000 0.750 B-1212 M-12121 4 930 8 710 3 600 5 600 0.09 0.054 0.062.7500 1.0625 0.750 — — — — — — 0.09 — —

13⁄16 .8125 1.0625 0.375 B-136 — 2 280 3 300 3 400 5 200 — 0.029 —.8125 1.0625 0.500 B-138 M-1381 3 310 5 350 3 400 5 200 0.09 0.039 0.044.8125 1.0625 0.875 B-1314 M-13141 6 010 11 500 3 400 5 200 0.09 0.068 0.077.8125 1.0625 1.000 B-1316 M-13161 6 820 13 500 3 400 5 200 0.09 0.078 0.088.8127 1.1250 0.500 BH-138 MH-1381 3 340 4 680 4 100 6 300 0.11 0.050 0.057.8125 1.1250 0.625 BH-1310 MH-13101 4 430 6 720 4 100 6 300 0.11 0.063 0.068.8125 1.1250 0.750 BH-1312 MH-13121 5 440 8 760 4 100 6 300 0.11 0.076 0.086


Full Complement

Bearing

Caged Bearing

SH


XD

C C

FWFW

B,BH M-1, MH-1


p385_444serv3_03.pm65 1/14/04, 8:41 AM410

411

3





0.6250 0.6245 0.8745 0.8755 — — — — — — — — —0.6250 0.6245 0.8745 0.8755 JH-1010 MJH-10101 2 600 3 170 14 000 21 000 0.04 0.032 0.0370.6250 0.6245 0.8745 0.8755 — — — — — — — — —0.6250 0.6245 0.8745 0.8755 JH-1016 MJH-10161 4 450 6 320 14 000 21 000 0.04 0.052 0.062

0.6875 0.6870 0.8745 0.8755 — — — — — — — — —0.6875 0.6870 0.8745 0.8755 — — — — — — — — —0.6875 0.6870 0.8745 0.8755 — — — — — — — — —0.6875 0.6870 0.8745 0.8755 J-1112 MJ-11121 2 800 4 700 12 000 19 000 0.04 0.030 0.0360.6875 0.6870 0.9370 0.9380 — — — — — — — — —0.6875 0.6870 0.9370 0.9380 JH-1110 MJH-11101 2 710 3 420 13 000 19 000 0.04 0.035 0.0420.6875 0.6870 0.9370 0.9380 JH-1112 — 3 630 4 990 13 000 19 000 — 0.042 0.050

0.7500 0.7495 0.9995 1.0005 J-126 — 1 460 1 580 11 000 18 000 — 0.022 —0.7500 0.7495 0.9995 1.0005 J-128 — 1 290 1 780 11 000 18 000 — 0.030 —0.7500 0.7495 0.9995 1.0005 J-1210 MJ-12101 2 810 3 670 11 000 18 000 0.04 0.038 0.0450.7500 0.7495 0.9995 1.0005 J-1212 MJ-12121 3 490 4 860 11 000 18 000 0.04 0.045 0.0540.7500 0.7495 1.0620 1.0630 JH-1212 MJH-12121 4 290 5 300 12 000 18 000 0.04 0.058 0.069

0.8125 0.8120 1.0620 1.0630 — — — — — — — — —0.8125 0.8120 1.0620 1.0630 — — — — — — — — —0.8125 0.8120 1.0620 1.0630 J-1314 — 2 210 2 770 10 000 16 000 — 0.056 —0.8125 0.8120 1.0620 1.0630 — — — — — — — — —0.8125 0.8120 1.1245 1.1255 — — — — — — — — —0.8125 0.8120 1.1245 1.1255 — — — — — — — — —0.8125 0.8120 1.1245 1.1255 JH-1312 MJH-13121 4 220 5 520 11 000 16 000 0.05 0.062 0.074





Y

D

C C

Inch Series

FW FW

J,JH MJ-1, MJH-1


p385_444serv3_03.pm65 1/14/04, 8:41 AM411

412







7⁄8 .8750 1.125 0.375 B-146 M-1461 2 370 3 560 3 100 4 800 0.09 0.031 0.035 .8750 1.125 0.500 B-148 M-1481 3 450 5 760 3 100 4 800 0.09 0.042 0.048 .8750 1.125 0.750 B-1412 M-14121 5 370 10 200 3 100 4 800 0.09 0.062 0.070 .8750 1.125 1.000 B-1416 M-14161 7 100 14 600 3 100 4 800 0.09 0.083 0.094 .8750 1.125 1.125 B-1418 — 7 920 16 800 3 100 4 800 — 0.094 0.107 .8750 1.1875 0.625 BH-1410 MH-14101 4 570 7 240 3 800 5 880 0.11 0.067 0.067 .8750 1.1875 0.750 BH-1412 MH-14121 5 620 9 440 3 800 5 880 0.11 0.080 0.091 .8750 1.1875 1.000 BH-1416 — 7 570 13 800 3 800 5 880 — 0.107 —

15⁄16 .9375 1.1875 0.500 B-158 — 3 580 6 180 3 000 4 500 — 0.044 — .9375 1.1875 1.000 B-1516 M-15161 7 370 15 600 3 000 4 500 0.09 0.088 0.100

1 1.0000 1.2500 0.375 B-166 — 2 550 4 070 2 800 4 300 — 0.035 —1.0000 1.2500 0.438 B-167 M-1671 3 140 5 320 2 800 4 300 0.09 0.041 0.0461.0000 1.2500 0.500 B-168 M-1681 3 710 6 590 2 800 4 300 0.09 0.047 0.0531.0000 1.2500 0.625 B-1610 M-16101 4 770 9 110 2 800 4 300 0.09 0.058 0.0661.0000 1.2500 0.750 B-1612 M-16121 5 770 11 600 2 800 4 300 0.09 0.070 0.0801.0000 1.2500 1.000 B-1616 M-16161 7 630 16 700 2 800 4 300 0.09 0.094 0.1061.0000 1.3125 0.500 BH-168 MH-1681 3 740 5 760 3 400 5 200 0.11 0.060 0.0681.0000 1.3125 0.625 BH-1610 — 4 950 8 280 3 400 5 200 — 0.075 —1.0000 1.3125 0.750 BH-1612 MH-16121 6 090 10 800 3 400 5 200 0.11 0.090 0.1021.0000 1.3125 0.875 BH-1614 — 7 170 13 300 3 400 5 200 — 0.105 —1.0000 1.3125 1.000 BH-1616 MH-16161 8 200 15 800 3 400 5 200 0.11 0.120 0.1361.0000 1.3125 1.250 BH-1620 — 10 200 20 900 3 400 5 200 — 0.150 —1.0000 1.3125 1.500 BH-1624 MH-16241 12 000 25 900 3 400 5 200 0.11 0.180 0.240

1 1⁄16 1.0625 1.3125 0.625 B-1710 M-17101 4 930 9 680 2 600 4 000 0.09 0.062 0.070

1 1⁄ 8 1.1250 1.3750 0.375 B-186 M-1861 2 720 4 580 2 500 3 800 0.09 0.039 0.0441.1250 1.3750 0.500 B-188 M-1881 3 950 7 420 2 500 3 800 0.09 0.052 0.0591.1250 1.3750 0.625 B-1810 — 5 080 10 300 2 500 3 800 — 0.065 —1.1250 1.3750 0.750 B-1812 M-18121 6 140 13 100 2 500 3 800 0.09 0.078 0.0881.1250 1.3750 1.000 B-1816 M-18161 8 130 18 800 2 500 3 800 0.09 0.104 0.1181.1250 1.5000 0.750 BH-1812 MH-18121 7 090 11 900 3 600 5 600 0.12 0.123 0.1381.1250 1.5000 1.000 BH-1816 MH-18161 9 560 17 500 3 600 5 600 0.12 0.164 0.1861.1250 1.5000 1.125 — — — — — — — — —1.1250 1.5000 1.250 BH-1820 MH-18201 11 900 23 200 3 600 5 600 0.12 0.205 0.232

Full Complement

Bearing

Caged Bearing

SH


XD

C C

FWFW

B,BH M-1, MH-1


p385_444serv3_03.pm65 1/14/04, 8:41 AM412

413

3





0.8750 0.8745 1.1245 1.1255 J-146 — 1 620 1 890 9 700 15 000 — 0.026 —0.8750 0.8745 1.1245 1.1255 J-148 — 2 460 3 260 9 700 15 000 — 0.034 —0.8750 0.8745 1.1245 1.1255 J-1412 MJ-14121 4 020 6 110 9 700 15 000 0.04 0.052 0.0620.8750 0.8745 1.1245 1.1255 J-1416 MJ-14161 5 320 8 760 9 700 15 000 0.04 0.069 0.0820.8750 0.8745 1.1245 1.1255 — — — — — — — — —0.8750 0.8745 1.1870 1.1880 — — — — — — — — —0.8750 0.8745 1.1870 1.1880 JH-1412 MJH-14121 4 120 5 520 9 800 15 000 0.05 0.066 0.0790.8750 0.8745 1.1870 1.1880 JH-1416 MJH-14161 5 710 8 400 9 800 15 000 0.05 0.089 0.106

0.9375 0.9370 1.1870 1.1880 — — — — — — — — —0.9375 0.9370 1.1870 1.1880 — — — — — — — —

1.0000 0.9995 1.2495 1.2505 — — — — — — — — —1.0000 0.9995 1.2495 1.2505 — — — — — — — — —1.0000 0.9995 1.2495 1.2505 — — — — — — — — —1.0000 0.9995 1.2495 1.2505 — — — — — — — — —1.0000 0.9995 1.2495 1.2505 J-1612 — 4 080 6 480 8 400 13 000 — 0.058 —1.0000 0.9995 1.2495 1.2505 J-1616 MJ-16161 5 610 9 760 8 400 13 000 0.04 0.077 0.0921.0000 0.9995 1.3120 1.3130 — — — — — — — — —1.0000 0.9995 1.3120 1.3130 — — — — — — — — —1.0000 0.9995 1.3120 1.3130 JH-1612 MJH-16121 4 650 6 650 8 500 13 000 0.05 0.074 0.0881.0000 0.9995 1.3120 1.3130 — — — — — — — — —1.0000 0.9995 1.3120 1.3130 JH-1616 MJH-16161 6 200 9 640 8 500 13 000 0.05 0.099 0.1191.0000 0.9995 1.3120 1.3130 — — — — — — — — —1.0000 0.9995 1.3120 1.3130 — — — — — — — — —

1.0625 1.0620 1.3120 1.3130 — — — — — — — — —

1.1250 1.1245 1.3745 1.3755 — — — — — — — — —1.1250 1.1245 1.3745 1.3755 J-188 MJ-1881 2 620 3 810 7 400 11 000 0.04 0.043 0.0501.1250 1.1245 1.3745 1.3755 — — — — — — — — —1.1250 1.1245 1.3745 1.3755 J-1812 MJ-18121 4 280 7 140 7 400 11 000 0.04 0.064 0.0761.1250 1.1245 1.3745 1.3755 J-1816 MJ-18161 5 880 10 800 7 400 11 000 0.04 0.086 0.1031.1250 1.1245 1.4995 1.5005 JH-1812 MJH-18121 5 250 7 140 7 600 12 000 0.05 0.101 0.1211.1250 1.1245 1.4995 1.5005 JH-1816 MJH-18161 7 450 11 100 7 600 12 000 0.05 0.135 0.1621.1250 1.1245 1.4995 1.5005 JH-1818 MJH-18181 8 160 12 500 7 600 12 000 0.05 0.152 0.1811.1250 1.1245 1.4995 1.5005 — — — — — — — — —





Y

D

C C

Inch Series

FW FW

J,JH MJ-1, MJH-1


p385_444serv3_03.pm65 1/14/04, 8:41 AM413

414






1 3⁄16 1.1875 1.5000 0.625 B-1910 M-19101 5 420 9 840 2 900 4 400 0.11 — —1.1875 1.5000 1.000 B-1916 — 8 980 18 800 2 900 4 400 — 0.140 —

1 1⁄4 1.2500 1.5000 0.500 B-208 M-2081 4 170 8 240 2 300 3 500 0.09 0.057 0.0651.2500 1.5000 0.625 B-2010 M-20101 5 370 11 400 2 300 3 500 0.09 0.071 0.0801.2500 1.5000 0.750 B-2012 M-20121 6 490 14 500 2 300 3 500 0.09 0.086 0.0991.2500 1.5000 1.000 B-2016 M-20161 8 590 20 800 2 300 3 500 0.09 0.114 0.1301.2500 1.5000 1.250 B-2020 M-20201 10 600 27 200 2 300 3 500 0.09 0.143 0.1621.2500 1.6250 0.500 BH-208 MH-2081 4 420 6 750 3 300 5 000 0.12 0.090 0.1021.2500 1.6250 0.750 BH-2012 MH-20121 7 440 13 200 3 300 5 000 0.12 0.135 0.1531.2500 1.6250 1.000 BH-2016 MH-20161 10 100 19 500 3 300 5 000 0.12 0.179 0.2031.2500 1.6250 1.250 BH-2020 MH-20201 12 600 25 800 3 300 5 000 0.12 0.224 0.254

1 5⁄16 1.3125 1.6250 0.500 B-218 M-2181 4 330 7 570 2 600 4 100 0.11 0.076 0.0861.3125 1.6250 0.625 B-2110 M-21101 5 740 10 900 2 600 4 100 0.11 0.095 0.1081.3125 1.6250 1.250 B-2120 — 11 800 27 500 2 600 4 100 — 0.191 —

1 3⁄8 1.3750 1.6250 0.500 B-228 M-2281 4 390 9 070 2 100 3 200 0.09 0.062 0.0701.3750 1.6250 0.750 B-2212 M-22121 6 830 16 000 2 100 3 200 0.09 0.094 0.1071.3750 1.6250 1.000 B-2216 M-22161 9 030 22 900 2 100 3 200 0.09 0.125 0.1421.3750 1.6250 1.250 B-2220 M-22201 11 100 29 900 2 100 3 200 0.09 0.156 0.1771.3750 1.7500 0.500 BH-228 — 4 770 7 540 3 000 4 700 — 0.098 —1.3750 1.7500 0.625 BH-2210 — 6 410 11 000 3 000 4 700 — 0.122 —1.3750 1.7500 0.750 BH-2212 MH-22121 7 930 14 500 3 000 4 700 0.12 0.146 0.1651.3750 1.7500 1.000 BH-2216 MH-22161 10 700 21 300 3 000 4 700 0.12 0.195 0.2211.3750 1.7500 1.250 BH-2220 — 13 400 28 300 3 000 4 700 — 0.244 0.276

1 1⁄2 1.5000 1.8750 0.500 B-248 M-2481 5 020 8 340 2 800 4 300 0.12 0.105 0.1191.5000 1.8750 0.625 B-2410 M-24101 6 710 12 100 2 800 4 300 0.12 0.132 0.1501.5000 1.8750 0.750 B-2412 M-24121 8 290 15 900 2 800 4 300 0.12 0.158 0.1791.5000 1.8750 0.875 B-2414 M-24141 9 780 19 700 2 800 4 300 0.12 0.184 0.2091.5000 1.8750 1.000 B-2416 M-24161 11 200 23 300 2 800 4 300 0.12 0.211 0.2391.5000 1.8750 1.250 B-2420 M-24201 13 900 31 000 2 800 4 300 0.12 0.263 0.298


Full Complement

Bearing

Caged Bearing

SH


XD

C C

FWFW

B,BH M-1, MH-1


p385_444serv3_03.pm65 1/14/04, 8:41 AM414

415

3





1.1875 1.1870 1.4995 1.5005 — — — — — — — — —1.1875 1.1870 1.4995 1.5005 — — — — — — — — —

1.2500 1.2495 1.4995 1.5005 — — — — — — — — —1.2500 1.2495 1.4995 1.5005 — — — — — — — — —1.2500 1.2495 1.4995 1.5005 J-2012 MJ-20121 4 460 7 800 6 600 10 000 0.04 0.080 0.0951.2500 1.2495 1.4995 1.5005 J-2016 MJ-20161 6 480 12 700 6 600 10 000 0.04 0.094 0.1131.2500 1.2495 1.4995 1.5005 — — — — — — — — —1.2500 1.2495 1.6245 1.6255 — — — — — — — — —1.2500 1.2495 1.6245 1.6255 JH-2012 — 5 420 7 630 6 800 10 000 — 0.111 —1.2500 1.2495 1.6245 1.6255 JH-2016 — 7 630 11 900 6 800 10 000 — 0.148 —1.2500 1.2495 1.6245 1.6255 JH-2020 — 9 750 16 300 6 800 10 000 — 0.185 —

1.3125 1.3120 1.6245 1.6255 — — — — — — — —1.3125 1.3120 1.6245 1.6255 — — — — — — — —1.3125 1.3120 1.6245 1.6255 — — — — — — — —

1.3750 1.3745 1.6245 1.6255 J-228 MJ-2281 3 140 5 150 6 000 9 200 0.04 0.052 0.0621.3750 1.3745 1.6245 1.6255 J-2212 — 5 130 9 660 6 000 9 200 — 0.077 —1.3750 1.3745 1.6245 1.6255 — — — — — — — — —1.3750 1.3745 1.6245 1.6255 — — — — — — — — —1.3750 1.3745 1.7495 1.7505 — — — — — — — — —1.3750 1.3745 1.7495 1.7505 — — — — — — — — —1.3750 1.3745 1.7495 1.7505 JH-2212 MJH-22121 5 900 8 640 6 100 9 400 0.05 0.121 0.1441.3750 1.3745 1.7495 1.7505 JH-2216 MJH-22161 8 210 13 200 6 100 9 4000.05 0.161 0.1921.3750 1.3745 1.7495 1.7505 — — — — — — — — —

1.5000 1.4995 1.8745 1.8755 — — — — — — — — —1.5000 1.4995 1.8745 1.8755 — — — — — — — — —1.5000 1.4995 1.8745 1.8755 J-2412 MJ-24121 6 720 10 600 5 600 8 600 0.05 0.131 0.1561.5000 1.4995 1.8745 1.8755 — — — — — — — — —1.5000 1.4995 1.8745 1.8755 J-2416 MJ-24161 8 840 15 000 5 600 8 600 0.05 0.174 0.2081.5000 1.4995 1.8745 1.8755 J-2420 — 11 100 20 200 5 600 8 600 — 0.218 —





Y

D

C C

Inch Series

FW FW

J,JH MJ-1, MJH-1


p385_444serv3_03.pm65 1/14/04, 8:41 AM415

416






1 5⁄8 1.6250 2.0000 0.500 B-268 — 5 120 8 820 2 600 3 900 — 0.113 —1.6250 2.0000 0.625 B-2610 M-26101 6 890 12 900 2 600 3 900 0.12 0.141 0.1601.6250 2.0000 1.000 B-2616 — 11 600 25 200 2 600 3 900 — 0.226 —1.6250 2.0000 1.250 B-2620 M-26201 14 400 33 400 2 600 3 900 0.12 0.282 0.320

1 3⁄4 1.7500 2.1250 0.750 B-2812 M-28121 8 830 18 300 2 400 3 700 0.12 0.181 0.2051.7500 2.1250 1.000 B-2816 M-28161 12 000 27 100 2 400 3 700 0.12 0.242 0.2741.7500 2.1250 1.250 B-2820 — 14 900 36 000 2 400 3 700 — 0.302 —1.7500 2.1250 1.500 B-2824 M-26241 17 700 44 800 2 400 3 700 0.12 0.363 0.411

1 7⁄8 1.8750 2.2500 0.500 B-308 M-3081 5 650 10 400 2 300 3 500 0.12 0.129 0.1461.8750 2.2500 0.750 B-3012 — 9 330 19 900 2 300 3 500 — 0.193 —1.8750 2.2500 1.000 B-3016 M-30161 12 600 29 200 2 300 3 500 0.12 0.258 0.292

2 2.0000 2.3750 0.500 B-328 M-3281 5 710 10 800 2 100 3 300 0.12 0.136 0.1542.0000 2.3750 1.000 B-3216 M-32161 12 900 31 000 2 100 3 300 0.12 0.273 0.3092.0000 2.3750 1.250 B-3220 M-32201 16 100 41 100 2 100 3 300 0.12 0.341 0.3862.0000 2.3750 1.500 B-3224 M-32241 19 100 51 200 2 100 3 300 0.12 0.410 0.4652.0000 2.3750 1.750 B-3228 M-32281 21 900 61 300 2 100 3 300 0.12 0.478 0.541

2 1⁄16 2.0625 2.5312 0.750 BH-3312 — 10 400 19 500 2 600 4 100 — 0.269 —2.0625 2.5312 0.750 BH-3316 MH-33161 14 400 29 900 2 600 4 100 0.14 0.358 0.4062.0625 2.5312 1.500 BH-3324 MH-33241 21 800 50 700 2 600 4 100 0.14 0.537 0.609

2 1⁄8 2.1250 2.5000 0.500 B-348 — 5 870 11 500 2 000 3 100 — 0.144 —2.1250 2.5000 1.000 B-3416 M-34161 13 300 33 000 2 000 3 100 0.12 0.304 0.3452.1250 2.5000 1.250 B-3420 — 16 500 43 700 2 000 3 100 — 0.361 —2.1250 2.5000 1.500 B-3424 M-34241 19 600 54 400 2 000 3 100 0.12 0.433 0.491

2 1⁄4 2.2500 2.6250 0.750 B-3612 M-36121 10 700 23 700 2 000 3 000 0.13 0.228 0.2582.2500 2.6250 1.000 — — — — — — — — —2.2500 2.6250 1.250 B-3620 — 17 400 46 400 2 000 3 000 — 0.380 —2.2500 2.6250 1.500 B-3624 M-36241 20 700 57 700 2 000 3 000 0.13 0.456 0.517

2 5⁄8 2.6250 3.0000 1.000 B-4216 M-42161 15 000 40 900 1 700 2 500 0.13 0.351 0.398

2 3⁄4 2.7500 3.1250 0.625 B-4410 — 9 210 22 000 1 600 2 500 — 0.229 —2.7500 3.1250 0.750 — — — — — — — — —2.7500 3.1250 1.000 B-4416 — 15 500 42 800 1 600 2 500 — 0.366 —2.7500 3.1250 1.250 B-4420 M-44201 19 200 56 700 1 600 2 500 0.13 0.458 0.519

3 1⁄2 3.5000 4.0000 0.750 B-5612 — 14 600 33 700 1 800 2 700 — 0.468 —

5 1⁄2 5.5000 6.0000 0.750 B-8812 — 17 300 52 000 1 000 1 600 — 0.717 —


Full Complement

Bearing

Caged Bearing

SH


XD

C C

FWFW

B,BH M-1, MH-1


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417

3





1.6250 1.6245 1.9995 2.0005 — — — — — — — — —1.6250 1.6245 1.9995 2.0005 J-2610 — 5 870 9 210 5 100 7 900 — 0.117 —1.6250 1.6245 1.9995 2.0005 J-2616 M-26161 8 830 15 500 5 100 7 900 0.05 0.187 0.2231.6250 1.6245 1.9995 2.0005 — — — — — — — —

1.7500 1.7495 2.1245 2.1255 J-2812 MJ-28121 6 650 11 100 4 700 7 300 0.05 0.150 0.1791.7500 1.7495 2.1245 2.1255 J-2816 MJ-28161 9 010 16 400 4 700 7 300 0.05 0.200 0.2391.7500 1.7495 2.1245 2.1255 — — — — — — — — —1.7500 1.7495 2.1245 2.1255 J-2824 MJ-28241 13 400 27 400 4 700 7 300 0.05 0.300 0.358

1.8750 1.8745 2.2495 2.2505 — — — — — — — — —1.8750 1.8745 2.2495 2.2505 — — — — — — — — —1.8750 1.8745 2.2495 2.2505 J-3016 MJ-30161 9 240 17 100 4 400 6 800 0.05 0.213 0.254

2.0000 1.9994 2.3745 2.3755 — — — — — — — — —2.0000 1.9994 2.3745 2.3755 J-3216 MJ-32161 9 530 18 300 4 100 6 300 0.05 0.226 0.3012.0000 1.9994 2.3745 2.3755 — — — — — — — — —2.0000 1.9994 2.3745 2.3755 — — — — — — — — —2.0000 1.9994 2.3745 2.3755 — — — — — — — — —

2.0625 2.0619 2.5307 2.5317 — — — — — — — — —2.0625 2.0619 2.5307 2.5317 — — — — — — — — —2.0625 2.0619 2.5307 2.5317 — — — — — — — — —

2.1250 2.1244 2.4995 2.5005 — — — — — — — — —2.1250 2.1244 2.4995 2.5005 — — — — — — — — —2.1250 2.1244 2.4995 2.5005 — — — — — — — — —2.1250 2.1244 2.4995 2.5005 — — — — — — — — —

2.2500 2.2494 2.6245 2.6255 J-3612 — 7 960 14 800 3 600 5 600 — 0.189 —2.2500 2.2494 2.6245 2.6255 J-3616 — 10 400 20 800 3 600 5 600 — 0.252 —2.2500 2.2494 2.6245 2.6255 — — — — — — — — —2.2500 2.2494 2.6245 2.6255 — — — — — — — — —

2.6250 2.6244 2.9995 3.0005 — — — — — — — — —

2.7500 2.7494 3.1245 3.1255 — — — — — — — — —2.7500 2.7494 3.1245 3.1255 J-4412 — 8 150 16 400 2 900 4 500 — 0.227 —2.7500 2.7494 3.1245 3.1255 — — — — — — — — —2.7500 2.7494 3.1245 3.1255 — — — — — — — — —

3.5000 3.4994 3.9995 4.0005 — — — — — — — — —

5.5000 5.4993 5.9990 6.0010 — — — — — — — — —





Y

D

C C

Inch Series

FW FW

J,JH MJ-1, MJH-1


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418

EXTRA-PRECISIONBEARINGS – INCH SERIESOpen end full complement mechanically retained drawn cupneedle roller bearings, manufactured to inch standards, areoffered with extra-precision specifications. The manufacturingtolerance of these bearings is one-third that of the precisionbearings. In production operations using closer tolerances onshaft and housing, they will assemble with consistently lowerradial internal clearances than can be expected with theprecision series bearings.

Extra-precision bearings are suitable for those applicationsrequiring close control of radial play and eccentricity. Theyare also preferred when two bearings are mounted adjacentto each other since the greater accuracy in manufacture willprovide better load distribution between the bearings.

Nominal dimensions, load ratings, limiting speeds andother general specifications for extra-precision bearings arethe same as for the corresponding “B” or “BH” sizes of drawncup needle bearings. Consequently, the tabular data onpages 406 to 417 can be used in bearing size selection.

When ordering an extra-precision bearing, add the prefixletter “G” to the bearing designation. For example, afterfollowing the size selection procedure outlined on pages E77to E117, bearing B-1212 is selected, but extra-precisiontolerances are required. These are designated by ordering aGB-1212 bearing.

To realize the advantages of the expected closer radialinternal clearance of the extra-precision bearing, the usermust have the capability of producing housing bore and shaftraceway diameters to the close tolerances indicated by thetabular data on the facing page.

The resulting total radial internal clearance within theinstalled GB-1212 extra-precision drawn cup needle rollerbearing will lie in the range from 0.0002" to 0.0012".

Inspection dimensions for the extra-precision bearings aregiven in the table at the right. Note that these bearings mustbe inspected while mounted in the specified ring gage.Bearing bores are checked with “GO” and “NO GO” pluggages. The “GO” gage size is the minimum diameter insidethe needle rollers. The “NO GO” gage size is 0.0001" largerthan the maximum diameter inside the needle rollers.

Procedures for selecting ring and plug gage dimensionsare the same as for those involving precision needle bearingsas shown on page 401, except that the ring gage diametersand diameters inside the needle rollers must be drawn fromthe table on this page.

Gaging

Nominal Diameter insideShaft Ring Needle Rollers

Diameter Gage (F ws min )inch

min. max.1⁄8 0.2473 0.1256 0.12605⁄32 0.2785 0.1569 0.15733⁄16 0.3390 0.1881 0.18851⁄4 0.4328 0.2506 0.25105⁄16 0.4953 0.3131 0.3135

H 5⁄16 0.5578 0.3131 0.31353⁄8 0.5578 0.3756 0.3760

H 3⁄8 0.6203 0.3756 0.37607⁄16 0.6203 0.4381 0.4385

H 7⁄16 0.6828 0.4381 0.43851⁄2 0.6828 0.5006 0.5010

H 1⁄2 0.7453 0.5006 0.50109⁄16 0.7453 0.5631 0.5635

H 9⁄16 0.8078 0.5631 0.56355⁄8 0.8078 0.6256 0.6260

H 5⁄8 0.8703 0.6256 0.626011⁄16 0.8703 0.6881 0.6885

H 11⁄16 0.9328 0.6881 0.68853⁄4 0.9950 0.7503 0.7507

H 3⁄4 1.0575 0.7503 0.750713⁄16 1.0575 0.8128 0.8132

H 13⁄16 1.1200 0.8128 0.81327⁄8 1.1200 0.8753 0.8757

H 7⁄8 1.1825 0.8753 0.875715⁄16 1.1825 0.9378 0.9382

1 1.2450 1.0003 1.0007H 1 1.3075 1.0003 1.0007

1 1⁄16 1.3075 1.0628 1.06321 1⁄8 1.3700 1.1253 1.1257

H 1 1⁄8 1.4950 1.1253 1.1257

1 3⁄16 1.4950 1.1878 1.18821 1⁄4 1.4950 1.2503 1.2507

H 1 1⁄4 1.6200 1.2503 1.25071 5⁄16 1.6200 1.3128 1.31321 3⁄8 1.6200 1.3753 1.3757

H 1 3⁄8 1.7450 1.3753 1.37571 1⁄2 1.8700 1.5003 1.50081 5⁄8 1.9950 1.6253 1.62581 3⁄4 2.1200 1.7503 1.75081 7⁄8 2.2450 1.8753 1.8758

2 2.3700 2.0003 2.0008H 2 1⁄16 2.5262 2.0628 2.0633

2 1⁄8 2.4950 2.1253 2.12582 1⁄4 2.6200 2.2503 2.2508

2 5⁄8 2.9950 2.6254 2.62602 3⁄4 3.1200 2.7504 2.75103 1⁄2 3.9950 3.5004 3.5010


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3

Mounting

Bearing Shaft Raceway Housing BoreBore Nominal Nominal Diameter

Designation bore o.d.inch

max. min. min. max.

GB-2 .1250 .2500 0.1251 0.1248 0.2470 0.2473GB-2 1⁄2 .1562 .2812 0.1564 0.1561 0.2782 0.2785GB-3 .1875 .3438 0.1876 0.1873 0.3387 0.3390GB-4 .2500 .4375 0.2501 0.2498 0.4325 0.4328GB-5 .3125 .5000 0.3126 0.3123 0.4950 0.4953

GBH-5 .3125 .5625 0.3126 0.3123 0.5575 0.5578GB-6 .3750 .5625 0.3751 0.3748 0.5575 0.5578GBH-6 .3750 .6250 0.3751 0.3748 0.6200 0.6203GB-7 .4375 .6250 0.4376 0.4373 0.6200 0.6203GBH-7 .4375 .6875 0.4376 0.4373 0.6825 0.6828

GB-8 .5000 .6875 0.5001 0.4998 0.6825 0.6828GBH-8 .5000 .7500 0.5001 0.4998 0.7450 0.7453GB-9 .5625 .7500 0.5626 0.5623 0.7450 0.7453GBH-9 .5625 .8125 0.5626 0.5623 0.8075 0.8078GB-10 .6250 .8125 0.6251 0.6248 0.8075 0.8078

GBH-10 .6250 .8750 0.6251 0.6248 0.8700 0.8703GB-11 .6875 .8750 0.6876 0.6873 0.8700 0.8703GBH-11 .6875 .9375 0.6876 0.6873 0.9325 0.9328GB-12 .7500 1.0000 0.7501 0.7498 0.9950 0.9953GBH-12 .7500 1.0625 0.7501 0.7498 1.0575 1.0578

GB-13 .8125 1.0625 0.8126 0.8123 1.0575 1.0578GBH-13 .8125 1.1250 0.8126 0.8123 1.1200 1.1203GB-14 .8750 1.1250 0.8751 0.8748 1.1200 1.1203GBH-14 .8750 1.1875 0.8751 0.8748 1.1825 1.1829GB-15 .9375 1.1875 0.9376 0.9373 1.1825 1.1829

GB-16 1.0000 1.2500 1.0001 0.9998 1.2450 1.2454GBH-16 1.0000 1.3125 1.0001 0.9998 1.3075 1.3079GB-17 1.0625 1.3125 1.0626 1.0623 1.3075 1.3079GB-18 1.1250 1.3750 1.1251 1.1248 1.3700 1.3704GBH-18 1.1250 1.5000 1.1251 1.1248 1.4950 1.4955

GB-19 1.1875 1.5000 1.1876 1.1873 1.4950 1.4955GB-20 1.2500 1.5000 1.2501 1.2498 1.4950 1.4955GBH-20 1.2500 1.6250 1.2501 1.2498 1.6200 1.6205GB-21 1.3125 1.6250 1.3126 1.3123 1.6200 1.6205GB-22 1.3750 1.6250 1.3750 1.3747 1.6200 1.6205

GBH-22 1.3750 1.7500 1.3750 1.3747 1.7450 1.7455GB-24 1.5000 1.8750 1.5000 1.4997 1.8700 1.8705GB-26 1.6250 2.0000 1.6250 1.6247 1.9950 1.9955GB-28 1.7500 2.1250 1.7500 1.7497 2.1200 2.1205GB-30 1.8750 2.2500 1.8750 1.8747 2.2450 2.2455

GB-32 2.0000 2.3750 2.0000 1.9997 2.3700 2.3705GBH-33 2.0625 2.5312 2.0624 2.0621 2.5262 2.5267GB-34 2.1250 2.5000 2.1249 2.1246 2.4950 2.4955GB-36 2.2500 2.6250 2.2499 2.2496 2.6200 2.6205

GB-42 2.6250 3.0000 2.6248 2.6245 2.9950 2.9956GB-44 2.7500 3.1250 2.7498 2.7495 3.1200 3.1206GB-56 3.5000 4.0000 3.4998 3.4995 3.9950 3.9956

* Check for availability as not every size may be in production.


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DFW FW

C1

C2

Sealed Drawn Cup Bearings –Inch SeriesCheck for availability. Not all bearings are in production.

Bearings with one seal Bearings with two seals

Shaft Fw D C1 Bearing C2 BearingDiameter +0.000 Designation +0.000 Designation

-0.010 Open End -0.010

inch inch inch5⁄16 0.3125 0.5000 0.375 JT-56 0.438 JTT-57

0.3125 0.5000 — — 0.562 JTT-59

3⁄ 8 0.3750 0.5625 0.375 JT-66 0.438 JTT-670.3750 0.5625 0.562 JT-69 — —

1⁄ 2 0.5000 0.6875 0.375 JT-86 0.438 JTT-870.5000 0.6875 0.562 JT-89 0.625 JTT-8100.5000 0.6875 — — 0.875 JTT-814

9⁄16 0.5625 0.7500 0.562 JT-99 0.625 JTT-9100.5625 0.7500 — — 0.750 JTT-912

5⁄ 8 0.6250 0.8125 0.562 JT-109 0.625 JTT-10100.6250 0.8125 — — 0.750 JTT-10120.6250 0.8125 — — 0.875 JTT-1014

11⁄16 0.6875 0.8750 — — 0.875 JTT-1114

3⁄4 0.7500 1.0000 0.562 JT-129 0.625 JTT-12100.7500 1.0000 0.688 JT-1211 — —0.7500 1.0000 0.812 JT-1213 0.875 JTT-1214

7⁄8 0.8750 1.1250 0.562 JT-149 0.625 JTT-14100.8750 1.1250 1.062 JT-1417 — —

1 1.0000 1.2500 0.812 JT-1613 0.875 JTT-1614

1 1⁄ 8 1.1250 1.3750 0.812 JT-1813 0.875 JTT-1814

1 1⁄4 1.2500 1.5000 0.812 JT-2013 — —1.2500 1.5000 — — 1.125 JTT-2018

1 1⁄2 1.5000 1.8750 1.312 JT-2421 — —

Drawn cup bearings of nominal inch dimensions, with one sealand one end closed, may be made available upon request.

JT JTTOne Seal Two Seals


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3

SH


GENERAL NOTESSealed drawn cup needle bearings are prepacked witha general purpose ball and roller bearing grease unlessotherwise specified.

Lip contact seals limit the bearing operating temperaturebetween -25°F and +225°F. If the operating temperaturemust be outside of the above range or if the seals areexposed to unusual fluids please consult Timken Engineer-ing. Limiting speed is based on a shaft contact speed of2000 fpm. For outer ring rotation, reduce the listed limitingspeed by one-half.

Bearing Load Ratings Bearing Mounting MassDesignation Dynamic Static Limiting Approx.

C C0 Speed S H with withOne Two

Grease Seal SealsOne Two inches inches

Seal Seals lbf lbf rpm max. min. min. max. lbs

JT-56 JTT-57 540 453 18 000 0.3125 0.3120 0.4995 0.5005 0.008 0.009— JTT-59 906 881 18 000 0.3125 0.3120 0.4995 0.5005 — 0.012

JT-66 JTT-67 615 560 18 000 0.3750 0.3745 0.5620 0.5630 0.009 0.011JT-69 — 1 170 1 290 18 000 0.3750 0.3745 0.5620 0.5630 0.014 —

JT-86 JTT-87 778 824 15 000 0.5000 0.4995 0.6870 0.6880 0.012 0.013JT-89 JTT-810 1 420 1 780 15 000 0.5000 0.4995 0.6870 0.6880 0.017 0.019

— JTT-814 2 300 3 310 15 000 0.5000 0.4995 0.6870 0.6880 — 0.027

JT-99 JTT-910 1 400 1 800 14 000 0.5625 0.5620 0.7495 0.7505 0.019 0.021— JTT-912 1 840 2 560 14 000 0.5625 0.5620 0.7495 0.7505 — 0.025

JT-109 JTT-1010 1 510 2 050 12 000 0.6250 0.6245 0.8120 0.8130 0.021 0.023— JTT-1012 1 980 2 910 12 000 0.6250 0.6245 0.8120 0.8130 — 0.028— JTT-1014 2 640 4 240 12 000 0.6250 0.6245 0.8120 0.8130 — 0.032

— JTT-1114 2 800 4 700 11 000 0.6875 0.6870 0.8745 0.8755 — 0.035

JT-129 JTT-1210 2 230 2 740 10 000 0.7500 0.7495 0.9995 1.0005 0.034 0.038JT-1211 — 2 810 3 670 10 000 0.7500 0.7495 0.9995 1.0005 0.041 —JT-1213 JTT-1214 3 490 4 860 10 000 0.7500 0.7495 0.9995 1.0005 0.049 0.053

JT-149 JTT-1410 2 460 3 260 8 700 0.8750 0.8745 1.1245 1.1255 0.039 0.043JT-1417 — 5 320 8 760 8 700 0.8750 0.8745 1.1245 1.1255 0.073 —

JT-1613 JTT-1614 4 080 6 480 7 600 1.0000 0.9995 1.2495 1.2505 0.063 0.068

JT-1813 JTT-1814 4 280 7 140 6 800 1.1250 1.1245 1.3745 1.3755 0.070 0.075

JT-2013 — 4 460 7 800 6 100 1.2500 1.2495 1.4995 1.5005 0.077 —— JTT-2018 6 480 12 700 6 100 1.2500 1.2495 1.4995 1.5005 — 0.106

JT-2421 — 11 100 20 200 5 100 1.5000 1.4995 1.8745 1.8755 0.288 —


See page 402 for mounting procedure.


p385_444serv3_03.pm65 1/14/04, 8:41 AM421

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F

B

d

r

Inner Rings for Inch SeriesDrawn Cup BearingsCheck for availibility

Hardened inner rings may be used where it is impossible to usethe shaft as the inner raceway. Inner rings for use with drawn cupbearings are provided in inch (IR, IRA) nominal dimensions,designed to meet established inch tolerances.

The inner rings are designed to be wider than the matchingdrawn cup bearing. The maximum shaft fillet radius (ras max.*)should be no greater than the minimum inner ring bore chamfer(rs min.) shown in the table of dimensions .

Most inner rings can be provided with a lubrication hole in thecenter and a lubrication groove in the bore. When ordering, pleasespecify if lubrication groove and hole are desired.

Shaft DimensionsDia. d F B rs min.

inch

min. max. max. min. max. min. inch3⁄16 0.1895 0.1900 0.3750 0.3745 0.536 0.526 0.025

1⁄4 0.2495 0.2500 0.4375 0.4370 0.536 0.526 0.025

5⁄16 0.3120 0.3125 0.5000 0.4995 0.536 0.526 0.025

3⁄8 0.3745 0.3750 0.5625 0.5620 0.515 0.505 0.0250.3745 0.3750 0.5625 0.5620 0.765 0.755 0.0250.3745 0.3750 0.5625 0.5620 0.786 0.776 0.0250.3745 0.3750 0.6250 0.6245 0.515 0.505 0.0250.3745 0.3750 0.6250 0.6245 0.765 0.755 0.025

7⁄16 0.4370 0.4375 0.6250 0.6245 0.786 0.776 0.025

1⁄2 0.4995 0.5000 0.7500 0.7495 0.515 0.505 0.0400.4995 0.5000 0.7500 0.7495 0.765 0.755 0.0400.4995 0.5000 0.7500 0.7495 0.786 0.776 0.040

5⁄8 0.6245 0.6250 0.8750 0.8745 0.765 0.755 0.0400.6245 0.6250 0.8750 0.8745 0.786 0.776 0.0400.6245 0.6250 0.8750 0.8745 1.015 1.005 0.040

3⁄4 0.7495 0.7500 1.0000 0.9995 0.515 0.505 0.0400.7495 0.7500 1.0000 0.9995 0.765 0.755 0.0400.7495 0.7500 1.0000 0.9995 1.015 1.005 0.0400.7495 0.7500 1.0000 0.9995 1.036 1.026 0.0400.7495 0.7500 1.0000 0.9995 1.265 1.255 0.0400.7495 0.7500 1.0000 0.9995 1.515 1.505 0.040

13⁄16 0.8120 0.8125 1.0000 0.9995 0.765 0.755 0.0400.8120 0.8125 1.0000 0.9995 1.015 1.005 0.040

7⁄8 0.8745 0.8750 1.1250 1.1245 1.015 1.005 0.0400.8745 0.8750 1.1250 1.1245 1.036 1.026 0.040

Bore and o.d. tolerance limits correspond to the single mean diameter(the arithmetical mean of the largest and smallest diameters in a single radial plane).


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3

Inner rings for drawn cup bearings are designed to provide a loosetransition fit on the shaft, and should be axially clamped against ashoulder. If a tight transition fit must be used to keep the inner ringfrom rotating relative to the shaft, the inner ring o.d., after beingmounted on the shaft, must not exceed the raceway diameterrequired for the matching drawn cup bearing. See tables of bearingdimensions for the required raceway diameter. In case the o.d. ofthe inner ring, when mounted on the shaft, exceeds the requiredraceway diameter for the matching drawn cup bearing, it should beground to proper diameter while mounted on the shaft.

Inner Mounting Dimensions MassRing S Approx.

Designation Transition Fit Loose Transition Fit Tight

inch inch

max. min. max. min. lbs

IRA-3 0.1897 0.1892 0.1901 0.1896 0.012

IRA-4 0.2497 0.2492 0.2501 0.2496 0.014

IRA-5 0.3122 0.3117 0.3126 0.3121 0.017

IR-68 0.3747 0.3742 0.3751 0.3746 0.019IR-612 0.3747 0.3742 0.3751 0.3746 0.028IRA-6 0.3747 0.3742 0.3751 0.3746 0.029IR-68-1 0.3747 0.3742 0.3751 0.3746 0.027IR-612-1 0.3747 0.3742 0.3751 0.3746 0.040

IRA-7 0.4372 0.4367 0.4376 0.4371 0.033

IR-88 0.4997 0.4992 0.5001 0.4996 0.033IR-812 0.4997 0.4992 0.5001 0.4996 0.050IRA-8 0.4997 0.4992 0.5001 0.4996 0.051

IR-1012 0.6247 0.6242 0.6251 0.6246 0.060IRA-10 0.6247 0.6242 0.6251 0.6246 0.061IR-1016 0.6247 0.6242 0.6251 0.6246 0.080

IR-128 0.7497 0.7492 0.7501 0.7496 0.047IR-1212 0.7497 0.7492 0.7501 0.7496 0.070IR-1216 0.7497 0.7492 0.7501 0.7496 0.093IRA-12 0.7497 0.7492 0.7501 0.7496 0.095IR-1220 0.7497 0.7492 0.7501 0.7496 0.116IR-1224 0.7497 0.7492 0.7501 0.7496 0.139

IR-1312 0.8122 0.8117 0.8126 0.8121 0.054IR-1316 0.8122 0.8117 0.8126 0.8121 0.072

IR-1416 0.8747 0.8742 0.8751 0.8746 0.106IRA-14 0.8747 0.8742 0.8751 0.8746 0.108

* ras max is equal to minimum inner ring bore chamfer (rs min). Continued on the next page.

S*ra shaft

fillet


p385_444serv3_03.pm65 1/14/04, 8:41 AM423

424

Inner Rings for Inch SeriesDrawn Cup BearingsCheck for availability.

Hardened inner rings may be used where it is impossible to use theshaft as the inner raceway. Inner rings for use with drawn cupbearings are provided in inch (IR, IRA) nominal dimensions, de-signed to meet established inch tolerances.

The inner rings are designed to be wider than the matching drawncup bearing. The maximum shaft fillet radius (ras max.*) should be nogreater than the minimum inner ring bore chamfer (rs min.) shown inthe table of dimensions.

Most inner rings can be provided with a lubrication hole in thecenter and a lubrication groove in the bore. When ordering, pleasespecify if lubrication groove and hole are desired.

Shaft DimensionsDia. d F B rs min.

inch

min. max. max. min. max. min. inch15⁄16 0.9370 0.9375 1.1250 1.1245 1.015 1.005 0.040

1 0.9995 1.0000 1.2500 1.2495 0.765 0.755 0.0400.9995 1.0000 1.2500 1.2495 1.015 1.005 0.0400.9995 1.0000 1.2500 1.2495 1.036 1.026 0.040

1 1⁄8 1.1245 1.1250 1.3750 1.3745 0.765 0.755 0.0401.1245 1.1250 1.3750 1.3745 1.015 1.005 0.0401.1245 1.1250 1.3750 1.3745 1.265 1.255 0.040

1 3⁄16 1.1870 1.1875 1.5000 1.4995 1.015 1.005 0.0401.1870 1.1875 1.5000 1.4995 1.265 1.255 0.040

1 1⁄4 1.2495 1.2500 1.5000 1.4995 1.015 1.005 0.0601.2495 1.2500 1.5000 1.4995 1.265 1.255 0.0601.2495 1.2500 1.5000 1.4995 1.286 1.276 0.060

1 3⁄8 1.3745 1.3750 1.6250 1.6245 1.265 1.255 0.060

1 7⁄16 1.4370 1.4375 1.7500 1.7495 1.015 1.005 0.0601.4370 1.4375 1.7500 1.7495 1.515 1.505 0.060

1 1⁄2 1.4995 1.5000 1.7500 1.7495 1.015 1.005 0.0601.4995 1.5000 1.7500 1.7495 1.515 1.505 0.060

1 11⁄16 1.6870 1.6875 2.0625 2.0620 1.515 1.505 0.060

1 3⁄4 1.7495 1.7500 2.0625 2.0620 1.515 1.505 0.060

1 13⁄16 1.8120 1.8125 2.0625 2.0620 1.015 1.005 0.0601.8120 1.8125 2.0625 2.0620 1.515 1.505 0.060

1 7⁄8 1.8745 1.8750 2.1250 2.1245 1.515 1.505 0.060

2 1⁄2 2.4995 2.5000 2.7500 2.7495 1.015 1.005 0.060

Bore and o.d. tolerance limits correspond to the single mean diameter(the arithmetical mean of the largest and smallest diameters in a single radial plane).

F

B

d

r


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Inner rings for drawn cup bearings are designed to provide a loosetransition fit on the shaft, and should be axially clamped against ashoulder. If a tight transition fit must be used to keep the inner ringfrom rotating relative to the shaft, the inner ring o.d., after beingmounted on the shaft, must not exceed the raceway diameterrequired for the matching drawn cup bearing. See tables of bearingdimensions for the required raceway diameter. In case the o.d. ofthe inner ring, when mounted on the shaft, exceeds the requiredraceway diameter for the matching drawn cup bearing, it should beground to proper diameter while mounted on the shaft.

Inner Mounting Dimensions MassRing S Approx.

Designation Transition Fit Loose Transition Fit Tight

inch inch

max. min. max. min. lbs

IR-1516 0.9372 0.9367 0.9376 0.9371 0.082

IR-1612 0.9997 0.9992 1.0001 0.9996 0.090IR-1616 0.9997 0.9992 1.0001 0.9996 0.119IRA-16 0.9997 0.9992 1.0001 0.9996 0.122

IR-1812 1.1247 1.1242 1.1251 1.1246 0.100IR-1816 1.1247 1.1242 1.1251 1.1246 0.133IR-1820 1.1247 1.1242 1.1251 1.1246 0.166

IR-1916 1.1872 1.1867 1.1876 1.1871 0.178IR-1920 1.1872 1.1867 1.1876 1.1871 0.223

IR-2016 1.2497 1.2492 1.2501 1.2496 0.146IR-2020 1.2497 1.2492 1.2501 1.2496 0.182IRA-20 1.2497 1.2492 1.2501 1.2496 0.185

IR-2220 1.3747 1.3742 1.3751 1.3746 0.199

IR-2316 1.4372 1.4367 1.4376 1.4371 0.212IR-2324 1.4372 1.4367 1.4376 1.4371 0.317

IR-2416 1.4997 1.4992 1.5001 1.4996 0.173IR-2424 1.4997 1.4992 1.5001 1.4996 0.258

IR-2724 1.6872 1.6867 1.6876 1.6871 0.447

IR-2824 1.7497 1.7492 1.7501 1.7496 0.379

IR-2916 1.8122 1.8117 1.8126 1.8121 0.206IR-2924 1.8122 1.8117 1.8126 1.8121 0.308

IR-3024 1.8747 1.8742 1.8751 1.8746 0.319

IR-4016 2.4998 2.4991 2.5002 2.4995 0.279

* ras max. is equal to minimum inner ring bore chamfer (rs min.).

S*ra shaft

fillet


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Radial Needle Roller and Cage Assemblies – Inch Nominal Dimensions

WJ - 20 26 16

PrefixesWJ Needle roller and cage assemblyWJC Needle roller and cage assembly

Width16 = 16⁄16 = 1"

Bore20 = 20⁄16 = 1 1⁄4"

Outside Diameter26 = 26⁄16 = 1 5⁄8"

Width10 = 10 mm38 = 38 mm

Radial Needle Roller and Cage Assemblies –Metric Nominal Dimensions

K 24 x 28 x 10 H

PrefixK needle roller and cage assembly

Outside diameter28 = 28 mm65 = 65 mm

Bore diameter24 = 24 mm49 = 49 mm

SuffixBE hardened steel cage (for crankpin position)

H hardened steel cageSE hardened steel cage (for wristpin position)TN molded cage of reinforced engineered polymerZW double row

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NEEDLE ROLLER AND CAGE RADIALASSEMBLIES – METRIC SERIES

Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 428

Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 428

Dimensional Accuracy . . . . . . . . . . . . . . . . . . . . . . 429

Mounting Dimensions . . . . . . . . . . . . . . . . . . . . . . . 429

Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 429

Tables of Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 430

ASSEMBLIES FOR CONNECTING ROD APPLICATIONS

Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 435

Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 436

Guidance Arrangements . . . . . . . . . . . . . . . . . . . . . 437

Radial Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . 438


Radial NeedleRoller and CageAssemblies

NEEDLE ROLLER AND CAGE RADIAL ASSEMBLIES

NEEDLE ROLLER AND CAGE RADIALASSEMBLIES – INCH SERIES

Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442

Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442

Dimensional Accuracy . . . . . . . . . . . . . . . . . . . . . . 442

Mounting Dimensions . . . . . . . . . . . . . . . . . . . . . . . 442

Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443


Page Page

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NEEDLE ROLLER ANDCAGE RADIAL ASSEMBLIES –METRIC SERIES

Timken Torrington metric series needle roller and cage radialassemblies are available in a variety of sizes and designs.This catalog includes the most popular, standardized andnon-standard designs.

Reference standards are:• ISO 3030 – Needle roller bearings – Needle roller and

cage radial assemblies – Boundary dimensions andtolerances

• DIN 5405 Part 1– Rolling bearings – needle bearings –Radial needle roller and cage assemblies.

• ANSI/ABMA 18.1 – Needle roller bearings – Radial, metricdesign.

Before selecting specific metric series needle roller andcage radial assemblies, the Needle Bearing Engineeringsection of this catalog should be reviewed.

SUFFIXES

TN molded cage of reinforced engineered polymer

ZW double row

TNZW molded cage of reinforced engineered polymer – double row

H hardened steel cage

K ... K ... ZW

TYPES OF METRIC SERIES NEEDLE ROLLER AND CAGE RADIAL ASSEMBLIES

CONSTRUCTIONTorrington needle roller and cage radial assemblies have asteel cage which provides both inward and outward retentionfor the needle rollers. The designs provide maximum cagestrength consistent with the inherent high load ratings ofneedle roller bearings. Accurate guidance of the needle rollers by the cage barsallows for operation at high speeds. Needle roller and cageassemblies have either one or two rows of needle rollers. Also listed are metric series needle roller and cageassemblies using molded, one piece glass reinforcedengineered polymer cages (suffix TN). These operate well at

temperatures up to 120°C over extended periods. Howevercare should be exercised when these assemblies arelubricated with oils containing additives as service life may bereduced if the operating temperature exceeds 100°C. At suchhigh temperatures oil can deteriorate with time and it isrecommended that oil change intervals are observed. Needle rollers with relieved ends used in these assem-blies are made of high carbon chrome steel, through hard-ened, ground and lapped to close tolerances for diameter androundness. See the Needle Bearing Engineering section ofthis catalog for further discussion of relieved end rollers.

RADIAL NEEDLE ROLLER AND CAGE ASSEMBLIES

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H11

Bc


DIMENSIONAL ACCURACYNeedle roller groups (gauges)Metric series needle roller and cage radial assemblies aresupplied with needle roller complements subdivided intogroups (gauges) shown in Table 1. The groups are atTorrington’s option if nothing to the contrary is agreed upon atthe time of ordering. This is in accordance with Grade G2specified in ISO 3096 standard. The group limits of theneedle rollers are indicated on the package. Labels ofidentifying colors show the group limits of the needle rollers.The needle roller and cage assemblies of one shipmentusually contain needle rollers with group limits of between 0to -2, and -5 to -7 µm (colors red, blue and white). Informa-tion on needle roller and cage assemblies with needle rollersof different group limits will be supplied on request.

Table 1 – Needle Roller Group Limits (Grade G2)

Group Marking Identifying colorTolerance of label or on

µm package

0 -2 P0M2-1 -3 M1M3 red

-2 -4 M2M4-3 -5 M3M5 blue

-4 -6 M4M6-5 -7 M5M7 white (gray)

-6 -8 M6M8-7 -9 M7M9 green

-8 -10 M8M10-9 -11 M9M11 yellow

In the marking of the gages, P identifies zero (0) or plus (+),M identifies minus (-).

MOUNTING DIMENSIONSDesign Of RacewaysNeedle roller and cage radial assemblies use the housingbore as the outer raceway and the shaft as the inner raceway.In order to realize full bearing load rating and life the housingbore and the shaft raceways must have the correct geometricand metallurgical characteristics. The housing should be ofsufficient cross section to maintain adequate roundness andrunning clearance under load. Additional design details forhousings and shafts used as outer and inner raceway can befound in the Needle Bearing Engineering section of thiscatalog. The only limit to precision of the radial clearance ofa mounted assembly is the capability of the user to hold closetolerances on the inner and outer raceways. The recom-mended shaft tolerances listed in Table 2 are based onhousing bore tolerance G6 and apply to metric series radialneedle roller and cage assemblies with needle rollers ofgroup limits between P0M2 and M5M7.

Table 2 –Recommended Shaft TolerancesFor Housing Bores Machined To G6

Nominal shaft diameter in mm < 80 > 80

Radial clearance Shaft tolerance

smaller than normal j5 h5

normal h5 g5

larger than normal g6 f6

Guidance in the housing Guidance on the shaft

Mounting in setsNeedle roller and cage radial assemblies which are mountedside by side must have needle rollers of the same grouplimits to ensure uniform load distribution.

LUBRICATIONOil is the preferred lubricant for most applications. In criticalapplications involving high speeds, ample oil flow must beprovided. Where assemblies are subjected to high centrifu-gal forces, such as in epicyclic gearing, or inertia forces as inthe small end of a connecting rod, the contact pressurebetween the cage and the raceway guiding surface becomescritical. The allowable contact pressure depends on acombination of the induced force and the rubbing velocitybetween the cage and raceway and the rate of lubricant flow.Consult Timken Engineering when cages will be subjected tohigh induced forces.

SPECIAL DESIGNSNeedle roller and cage radial assemblies made to specialdimensions or configurations, such as those which are split toassemble around a one piece crankshaft, can be madeavailable on special order. Special coated or plated cages toenhance life under conditions of marginal lubrication and highinduced forces can also be made available.

H11

Bc

Axial guidance requirementsNeedle roller and cage radial assembly must be axiallyguided by shoulders or other suitable means. The endguiding surfaces should be hardened to minimize wear andmust provide sufficient axial clearance to prevent end lockingof the assembly. Length tolerance H11 is recommended. If end guidance is provided by a housing shoulder at oneend and by a shaft shoulder at the other end the shaft mustbe axially positioned to prevent end locking of needle rollerand cage assembly. The housing and shaft shoulder heightsshould be 70 to 90% of the needle roller diameter to provideproper axial guidance.

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Single Row,Double RowAssembliesMetric Series

Shaft Dimensions Assembly Load ratings Limiting speed MassDiameter Fw Ew Bc Designation dynamic static Grease Oil Approx.

-0,2 C C0mm -0,55 kN rpm kg

4 4 7 7 K4x7x7TN 1,83 1,32 34 000 52 000 0,0005

5 5 8 8 K5x8x8TN 2,18 1,71 31 000 47 000 0,00075 8 10 K5x8x10TN 3,04 2,63 31 000 47 000 0,00085 9 13 K5x9x13TN 4,29 3,55 26 000 40 000 0,002

6 6 9 8 K6x9x8 3,19 2,9 29 000 44 000 0,00086 9 10 K6x9x10TN 3,07 2,74 29 000 44 000 0,001

7 7 10 8 K7x10x8TN 2,74 2,44 27 000 42 000 0,0017 10 10 K7x10x10TN 3,4 3,22 27 000 42 000 0,001

8 8 11 8 K8x11x8TN 2,34 2,05 27 000 41 000 0,0018 11 10 K8x11x10 4,57 4,89 27 000 41 000 0,0028 11 13 K8x11x13H 5,22 5,78 27 000 41 000 0,003

9 9 12 10 K9x12x10H 4,27 4,6 26 000 40 000 0,0039 12 13 K9x12x13H 5,57 6,47 26 000 40 000 0,0049 13 8 K9x13x8H 3,96 3,5 21 000 32 000 0,002

10 10 13 10 K10x13x10TN 4,29 4,77 25 000 39 000 0,00210 13 13 K10x13x13 5,9 7,16 25 000 39 000 0,00410 13 16 K10x13x16 7,43 9,64 25 000 39 000 0,00410 14 10 K10x14x10H 6,12 6,29 20 000 31 000 0,00410 14 13 K10x14x13H 7,88 8,71 20 000 31 000 0,00510 14 13,7 K10X14X13,7TN 8,2 9,2 20 000 31 000 0,00410 16 12 K10x16x12TN 7,5 6,4 16 000 24 000 0,005

12 12 15 6,1 K12x15x6,1TN 3,01 3,19 24 000 37 000 0,00112 15 10 K12x15x10H 5,85 7,51 24 000 37 000 0,00312 15 13 K12x15x13H 6,78 9,03 24 000 37 000 0,00312 16 13 K12x16x13 7,49 8,51 20 000 30 000 0,00712 17 13 K12x17x13 8,93 9,29 16 000 25 000 0,00812 18 12 K12x18x12H 9,76 9,4 14 000 22 000 0,009

13 13 17 10 K13x17x10 7,22 8,33 19 000 29 000 0,005

14 14 18 8 K14x18x8 5,39 5,82 19 000 29 000 0,00514 18 10 K14x18x10 7,17 8,41 19 000 29 000 0,00514 18 13 K14x18x13 9,73 12,5 19 000 29 000 0,00714 18 15 K14x18x15 10,5 13,8 19 000 29 000 0,00714 18 17 K14x18x17H 12,4 17,1 19 000 29 000 0,00814 19 13 K14x19x13H 10,2 11,4 16 000 24 000 0,00714 20 12 K14x20x12 10,5 10,6 14 000 21 000 0,01

15 15 18 17 K15x18x17 8,08 12,1 23 000 36 000 0,00715 19 10 K15x19x10 7,87 9,69 18 000 28 000 0,00515 19 13 K15x19x13 9,66 12,6 18 000 28 000 0,00715 19 17 K15x19x17 12,3 17,2 18 000 28 000 0,00915 19 22 K15x19x22ZW 12,2 17,0 18 000 28 000 0,0115 20 13 K15x20x13H 9,93 11,3 16 000 24 000 0,01115 21 15 K15x21x15 13,4 14,8 14 000 21 000 0,01415 21 21 K15x21x21H 18,1 21,7 14 000 21 000 0,018

16 16 20 10 K16x20x10 7,82 9,76 18 000 28 000 0,00616 20 13 K16x20x13 10,1 13,5 18 000 28 000 0,00716 20 17 K16x20x17H 12,9 18,5 18 000 28 000 0,00816 22 12 K16x22x12H 11,2 11,9 19 000 29 000 0,01216 22 20 K16x22x20 18,6 22,9 19 000 29 000 0,02116 24 20 K16x24x20 20,2 21,4 20 000 30 000 0,031

17 17 20 10 K17x20x10 5,96 8,53 16 000 25 000 0,00417 21 10 K17x21x10 8,12 10,4 17 000 26 000 0,00517 21 13 K17x21x13 10,5 14,5 17 000 26 000 0,00817 21 17 K17x21x17H 13,4 19,8 17 000 26 000 0,012

Fw Ew

Bc

Fw Ew

Bc

K K.ZW


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18 18 22 13 K18x22x13H 10,8 15,4 16 000 24 000 0,00818 22 14 K18x22x14 11,6 16,8 16 000 24 000 0,00918 22 17 K18x22x17H 13,3 19,9 16 000 24 000 0,0118 24 12 K18x24x12 11,8 13,1 16 000 25 000 0,01318 24 13 K18x24x13H 12,1 13,5 16 000 25 000 0,01618 24 20 K18x24x20H 19,4 24,9 16 000 25 000 0,0218 25 22 K18x25x22H 23,3 28,6 17 000 26 000 0,028

19 19 23 13 K19x23x13 10,8 15,5 15 000 23 000 0,00819 23 17 K19x23x17 13,4 20,6 15 000 23 000 0,013

20 20 24 10 K20x24x10 8,97 12,5 14 000 22 000 0,00720 24 13 K20x24x13 11,5 17,3 14 000 22 000 0,00920 24 14 K20x24x14 12,4 18,9 14 000 22 000 0,00920 24 17 K20x24x17H 14,8 23,7 14 000 22 000 0,01120 26 12 K20x26x12 13,0 15,3 15 000 23 000 0,01420 26 13 K20x26x13H 13,4 15,9 15 000 23 000 0,01520 26 17 K20x26x17H 19,3 25,5 15 000 23 000 0,01920 26 20 K20x26x20 20,3 27,2 15 000 23 000 0,02220 28 20 K20x28x20H 24,6 29,0 15 000 23 000 0,03220 28 25 K20x28x25H 29,7 37,0 15 000 23 000 0,03920 32 36 K20x32x36H 50,9 58,5 16 000 25 000 0,090

21 21 25 17 K21x25x17H 14,3 23,1 14 000 21 000 0,014

22 22 26 10 K22x26x10H 9,81 14,5 13 000 20 000 0,00622 26 13 K22x26x13H 11,8 18,3 13 000 20 000 0,0122 26 17 K22x26x17 15,6 26,3 13 000 20 000 0,01222 26 18 K22x26x18H 15,3 25,5 13 000 20 000 0,01322 28 17 K22x28x17H 18,2 24,2 13 000 20 000 0,02122 30 15 K22x30x15H 19,7 22,3 14 000 21 000 0,02722 32 30 K22x32x30H 41,8 51,3 14 000 22 000 0,064

23 23 35 16,2 K23x35x16,2H 29,1 29,3 14 000 21 000 0,036

24 24 28 10 K24x28x10H 9,67 14,6 12 000 18 000 0,00824 28 13 K24x28x13H 12,5 20,2 12 000 18 000 0,0124 28 17 K24x28x17H 15,4 26,4 12 000 18 000 0,01224 30 10 K24x30x10TN 11,3 13,5 12 000 19 000 0,00824 30 17 K24x30x17H 19,8 27,7 12 000 19 000 0,02324 36 23 K24x36x23H 37,1 40,1 14 000 20 000 0,070

25 25 29 10 K25x29x10H 9,61 14,6 11 000 17 000 0,00825 29 13 K25x29x13H 12,8 21,1 11 000 17 000 0,01425 29 17 K25x29x17H 15,1 26,2 11 000 17 000 0,01725 30 13 K25x30x13 14,6 21,4 11 000 17 000 0,01425 30 17 K25x30x17H 18,8 29,8 11 000 17 000 0,01925 30 18 K25x30x18 20,6 33,4 11 000 17 000 0,0225 30 20 K25x30x20H 21,9 36,1 11 000 17 000 0,02225 30 26 K25x30x26ZW 23,0 38,6 11 000 17 000 0,03425 31 17 K25x31x17H 19,7 27,8 12 000 18 000 0,02325 31 21 K25x31x21H 25,1 38,0 12 000 18 000 0,02925 32 16 K25x32x16 19,8 25,3 12 000 18 000 0,02725 33 20 K25x33x20H 28,8 37,6 12 000 18 000 0,03725 33 24 K25x33x24H 32,3 43,5 12 000 18 000 0,03825 33 25 K25x33x25H 33,0 44,6 12 000 18 000 0,04625 35 23,7 K25x35x23,7H 35,9 43,3 12 000 19 000 0,0525 35 25 K25x35x25H 37,8 46,2 12 000 19 000 0,05925 35 30 K25x35x30H 44,6 57,2 12 000 19 000 0,0725 37 20 K25x37x20H 32,5 34,1 12 000 19 000 0,055


Fw Ew

Bc

Fw Ew

Bc

K K.ZW


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Fw Ew

Bc

Fw Ew

Bc

26 26 30 13 K26x30x13 12,3 20,4 10 000 16 000 0,01326 30 17 K26x30x17 15,0 26,3 10 000 16 000 0,01726 30 22 K26x30x22ZW 16,7 30,2 10 000 16 000 0,023

28 28 33 17 K28x33x17H 19,8 33,0 10 000 15 000 0,0228 34 17 K28x34x17 21,1 31,5 10 000 16 000 0,02628 34 20 K28x34x20H 24,4 37,8 10 000 16 000 0,02428 35 16 K28x35x16H 20,9 27,9 10 000 16 000 0,03428 35 18 K28x35x18 24,2 33,7 10 000 16 000 0,03328 35 27 K28x35x27H 35,2 54,7 10 000 16 000 0,04728 40 25 K28x40x25H 45,5 54,0 11 000 17 000 0,072

30 30 35 13 K30x35x13H 15,6 24,9 9 000 14 000 0,01730 35 17 K30x35x17H 20,2 34,6 9 000 14 000 0,02230 35 27 K30x35x27H 30,6 59,0 9 000 14 000 0,03330 35 27 K30x35x27HZW 19,9 33,6 9 000 14 000 0,03130 37 18 K30x37x18 24,3 34,8 10 000 15 000 0,0430 40 30 K30x40x30H 49,2 67,8 10 000 15 000 0,08130 42 30 K30x42x30H 54,2 68,6 10 000 16 000 0,09630 44 26 K30x44x26H 52,4 59,9 10 000 16 000 0,095

32 32 37 13 K32x37x13 15,2 24,4 8 000 13 000 0,02132 37 17 K32x37x17H 20,0 34,8 8 000 13 000 0,02232 37 27 K32x37x27 29,3 56,8 8 000 13 000 0,04232 38 20 K32x38x20H 27,3 45,7 9 000 14 000 0,03932 38 26 K32x38x26H 33,2 58,8 9 000 14 000 0,04332 39 16 K32x39x16H 23,0 33,0 9 000 14 000 0,0332 39 18 K32x39x18H 25,8 38,2 9 000 14 000 0,03732 40 25 K32x40x25H 37,9 57,2 9 000 14 000 0,05732 40 36 K32x40x36H 52,3 86,4 9 000 14 000 0,0832 42 42 K32x42x42H 69,8 108,0 9 000 14 000 0,11932 46 18 K32x46x18H 39,2 41,9 10 000 15 000 0,07632 46 32 K32x46x32H 67,0 83,4 10 000 15 000 0,162

35 35 40 13 K35x40x13H 16,2 27,2 8 000 12 000 0,01935 40 17 K35x40x17H 22,1 40,8 8 000 12 000 0,02635 40 25 K35x40x25H 28,4 56,2 8 000 12 000 0,03435 40 27 K35x40x27H 29,8 59,6 8 000 12 000 0,03635 42 16 K35x42x16 24,5 36,8 8 000 12 000 0,03635 42 18 K35x42x18 27,5 42,6 8 000 12 000 0,0435 42 20 K35x42x20H 30,4 48,5 8 000 12 000 0,03735 42 30 K35x42x30H 40,5 70,0 8 000 12 000 0,06235 45 20 K35x45x20H 37,5 49,9 8 000 13 000 0,07735 45 41 K35x45x41 70,8 113,0 8 000 13 000 0,13035 45 49 K35x45x49HZW 71,8 115,0 8 000 13 000 0,14735 50 23 K35x50x23H 53,0 60,3 8 000 13 000 0,110

37 37 42 17 K37x42x17H 21,9 41,0 7 000 11 000 0,026

38 38 41 9 K38x41x9TN 5,93 11,0 7 000 11 000 0,00438 43 17 K38x43x17H 21,8 41,0 7 000 11 000 0,03238 43 27 K38x43x27 31,9 67,0 7 000 11 000 0,0538 46 20 K38x46x20 33,3 51,0 8 000 12 000 0,05638 46 32 K38x46x32H 55,2 98,1 8 000 12 000 0,0938 50 33 K38x50x33H 68,3 98,2 8 000 12 000 0,132

39 39 44 26 K39x44x26ZW 22,1 41,8 7 000 11 000 0,038

40 40 45 17 K40x45x17H 23,8 47,0 7 000 11 000 0,02440 45 27 K40x45x27H 32,7 70,2 7 000 11 000 0,04140 47 18 K40x47x18 28,0 45,6 7 000 11 000 0,04740 48 20 K40x48x20H 35,5 56,3 7 000 11 000 0,0640 55 45 K40x55x45H 103,0 146,0 8 000 12 000 0,23740 56 26 K40x56x26H 63,7 75,7 7 000 12 000 0,16

K K.ZW


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41 41 48 31 K41x48x31HZW 38,0 68,1 7 000 11 000 0,067

42 42 47 13 K42x47x13H 18,7 34,9 6 500 10 000 0,02342 47 17 K42x47x17H 22,8 45,2 6 500 10 000 0,03542 47 27 K42x47x27H 33,8 74,7 6 500 10 000 0,05442 47 34 K42x47x34TNZW 36,8 83,6 6 500 10 000 0,03942 50 20 K42x50x20H 35,2 56,6 6 500 10 000 0,062

43 43 48 17 K43x48x17H 22,7 45,3 6 500 9 800 0,03643 48 27 K43x48x27H 34,8 78,0 6 500 9 800 0,045

44 44 50 30,5 K44x50x30,5HZW 35,3 70,6 6 300 9 700 0,068

45 45 50 13 K45x50x13H 18,4 35,1 6 100 9 400 0,02445 50 17 K45x50x17H 24,9 51,8 6 100 9 400 0,03245 50 27 K45x50x27TN 31,8 70,7 6 100 9 400 0,05845 52 18 K45x52x18H 30,1 52,0 6 200 9 500 0,05245 53 20 K45x53x20H 36,0 59,5 6 200 9 600 0,06545 53 21 K45x53x21 39,0 65,9 6 200 9 600 0,06945 53 28 K45x53x28H 49,3 89,2 6 200 9 600 0,08845 59 18 K45x59x18TN 45,7 55,4 6 500 10 000 0,07945 60 45 K45x60x45H 108,0 160,0 6 500 10 000 0,25

46 46 53 36 K46x53x36HZW 48,6 96,7 6 000 9 300 0,1

47 47 52 17 K47x52x17H 24,2 50,4 5 800 8 900 0,03447 52 27 K47x52x27H 36,6 85,9 5 800 8 900 0,049

48 48 53 17 K48x53x17H 25,7 54,9 5 700 8 700 0,033

49 49 55 32 K49x55x32HZW 40,2 86,4 5 600 8 600 0,0849 65 38 K49x65x38H 100,0 142,0 6 000 9 300 0,249

50 50 55 17 K50x55x17H 25,5 55,0 5 500 8 400 0,03450 55 20 K50x55x20H 30,2 68,5 5 500 8 400 0,0450 55 30 K50x55x30 38,2 92,4 5 500 8 400 0,07150 56 23 K50x56x23 35,5 74,1 5 500 8 500 0,05650 58 20 K50x58x20H 38,8 67,8 5 600 8 600 0,07250 58 25 K50x58x25H 46,5 85,6 5 600 8 600 0,08750 58 35 K50x58x35H 64,9 131,0 5 600 8 600 0,10550 62 22 K50x62x22H 55,2 80,6 5 800 8 900 0,10250 66 30 K50x66x30H 80,9 109,0 5 900 9 100 0,19250 70 32 K50x70x32H 103,0 129,0 6 000 9 300 0,224

52 52 57 12 K52x57x12 16,2 30,9 5 200 8 000 0,0352 57 17 K52x57x17H 21,4 44,3 5 200 8 000 0,035

55 55 60 17 K55x60x17 26,0 58,3 4 900 7 600 0,03655 60 20 K55x60x20H 30,7 72,4 4 900 7 600 0,04355 60 27 K55x60x27H 40,1 102,0 4 900 7 600 0,06255 60 30 K55x60x30 40,6 103,0 4 900 7 600 0,07855 62 18 K55x62x18H 33,2 62,8 5 000 7 700 0,05555 63 20 K55x63x20 40,3 73,5 5 100 7 800 0,07855 63 25 K55x63x25 49,8 96,5 5 100 7 800 0,09555 63 32 K55x63x32 60,6 124,0 5 100 7 800 0,143

58 58 64 19 K58x64x19H 32,9 70,6 4 700 7 200 0,04858 65 18 K58x65x18H 34,4 67,1 4 700 7 300 0,065

60 60 65 20 K60x65x20H 31,9 78,1 4 500 6 900 0,04660 65 30 K60x65x30 42,9 114,0 4 500 6 900 0,08560 66 33 K60x66x33ZW 45,0 107,0 4 500 7 000 0,13460 68 20 K60x68x20H 41,8 79,2 4 600 7 100 0,08460 68 23 K60x68x23H 47,8 94,1 4 600 7 100 0,11260 68 25 K60x68x25 51,6 104,0 4 600 7 100 0,12360 68 30 K60x68x30ZW 46,4 90,1 4 600 7 100 0,12660 75 42 K60x75x42H 119,0 195,0 4 800 7 400 0,408




Fw Ew

Bc

Fw Ew

Bc

K K.ZW


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434

64 64 70 16 K64x70x16 26,4 55,1 4 200 6 500 0,061

65 65 70 20 K65x70x20H 28,6 69,2 4 200 6 400 0,05465 70 30 K65x70x30 44,4 123,0 4 200 6 400 0,09265 73 23 K65x73x23H 48,2 97,7 4 200 6 500 0,09165 73 30 K65x73x30H 60,1 129,0 4 200 6 500 0,131

68 68 74 30 K68x74x30H 47,6 119,0 4 000 6 100 0,09868 74 35 K68x74x35HZW 45,1 111,0 4 000 6 100 0,12

70 70 76 20 K70x76x20 36,1 84,7 3 800 5 900 0,08270 76 30 K70x76x30 51,6 134,0 3 800 5 900 0,12170 78 30 K70x78x30H 62,2 139,0 3 900 6 000 0,1470 78 46 K70x78x46ZW 78,4 187,0 3 900 6 000 0,218

72 72 80 20 K72x80x20 44,4 90,7 3 800 5 800 0,101

73 73 79 20 K73x79x20 37,0 88,7 3 700 5 700 0,086

75 75 80 14 K75x80x14H 22,0 52,1 3 600 5 500 0,0475 83 23 K75x83x23 52,5 114,0 3 600 5 600 0,1275 83 30 K75x83x30 60,9 138,0 3 600 5 600 0,181

80 80 86 20 K80x86x20H 38,6 96,7 3 400 5 200 0,09480 88 30 K80x88x30 67,5 161,0 3 400 5 200 0,16

85 85 92 20 K85x92x20H 39,9 91,7 3 200 4 900 0,096

90 90 97 20 K90x97x20 46,3 114,0 3 000 4 600 0,10790 98 30 K90x98x30 63,6 155,0 3 000 4 600 0,215

95 95 103 20 K95x103x20 49,3 114,0 3 000 4 400 0,15295 103 39,7 K95x103x39,7HZW 75,8 198,0 3 000 4 400 0,298

100 100 108 30 K100x108x30 72,4 191,0 2 700 4 200 0,239

105 105 113 27 K105x113x27 67,8 178,0 2 500 3 900 0,225

110 110 118 24 K110x118x24 64,0 168,0 2 500 3 800 0,208110 118 30 K110x118x30 75,3 207,0 2 500 3 800 0,262

120 120 128 25 K120x128x25 66,4 181,0 2 200 3 400 0,237

130 130 137 24 K130x137x24 64,3 197,0 2 100 3 200 0,211130 140 45 K130x140x45 135,0 397,0 2 100 3 200 0,586

135 135 145 38 K135x145x38 123,0 355,0 2 000 3 100 0,511

140 140 150 43 K140x150x43 141,0 428,0 1 900 3 000 0,596

150 150 160 43 K150x160x43 144,0 452,0 1 800 2 800 0,636

160 160 168 22 K160x168x22 65,4 196,0 1 700 2 600 0,281

165 165 173 26 K165x173x26 78,8 251,0 1 600 2 500 0,338



Single Row,Double RowAssembliesMetric Series Fw Ew

Bc

Fw Ew

Bc

K K.ZW


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Types of metric series needle roller and cage radial assemblies .

Needle roller and cage Needle roller and cageassembly for crank pin assembly for wrist pin

applications. applications.

NEEDLE ROLLER AND CAGE RADIALASSEMBLIES FOR CONNECTINGROD APPLICATIONS – METRIC SERIES

Connecting rods have two bearing positions: the crank pin orbig end and the wrist pin or small end.

In the crank pin position there may be severe operatingconditions due to centrifugal forces, internal forces, accelera-tions and high rotational speeds, requiring the use of specialneedle roller and cage radial assemblies.

Suffixes

BE steel cage, heat treated, for crank pin position

SE steel cage, heat treated, for wrist pin position

Similarly, in the wrist pin position the reciprocating inertialoads and high oscillating speeds dictate the use of specialcage designs.

K.BE K.SE


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CONSTRUCTION

Metric series needle roller and cage radialassemblies for crank pin positionsNeedle roller and cage assemblies for use in crank pinpositions have cages with a large outside cylindrical surfaceto ensure optimum radial guidance in the connecting rod bore.Due to the inherent low weight and strength of the heat-treated cages, the Timken Torrington needle roller and cageassemblies are well suited for high engine speed applications.When necessary, silver plating and copper plating can beapplied for optimum performance during operation at highspeeds.

Table 1 – Crank pin and wrist pin diameters, determined by the cylinder displacement of the engine.

Cylinder displacement in cm3

Cylinder > 40 60 100 150 200 300displacement ≤ 40 60 100 150 200 300

Diameter in mm

Crank pin 12/14 15/16/18 18/20 18/20/22 24/25/28 28/30 35/40

Wrist pin 10/11 12/13 14/15 15/16 18 20 20


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437

3

1,7...2

BcC10

0,03/100

Bc

Bc

Bc

h8+2

Bch8

b1

BcB11

Bc

0,03/100

Bc

Bc

Bc

h8B11

5...10

0,5...16...10

Bc

End guidance of a connecting rod can be provided either atthe crank pin or at the wrist pin end. Connecting rod guid-ance is achieved at the crank pin end using a small clearancebetween the crank webs. Guidance at the wrist pin end iscontrolled by a small clearance between the piston bosses.

Crank pin end guidanceWith crank pin end guidance care must be taken that anadequate amount of lubricant is supplied to the crank pinbearing and the surfaces which guide the connecting rod.For this purpose, grooves in the connecting rod end faces orslots in the connecting rod bore aligned with the incominglubrication path should be provided. Occasionally, bronze orhardened steel washers may be used for end guidance of theconnecting rod. At the wrist pin end, the needle roller and cage assemblyis located axially between the piston bosses. It may be botheconomical and effective to machine the connecting rod at thewrist pin end and at the crank pin end to the same width. It isrecommended that at the wrist pin end the needle roller lengthdoes not overhang the connecting rod width. Otherwise theload rating of the needle roller and cage assembly will bereduced.

CONNECTING ROD GUIDANCEARRANGEMENTS

Crank Pin End Guidance Wrist Pin End Guidance

Wrist pin end guidanceWrist pin end will get the most effective axial guidance be-tween the piston bosses. Grooves in the bottom of the pistonbosses and a chamfer of small angle on each side of theupper portion of the connecting rod small end, can improvethe oil flow to the needle roller and cage assembly and itsguiding surfaces. The length of the needle roller and cage assembly and theconnecting rod width at the crank pin end should be identicalto ensure best possible radial piloting of cage in the bore ofthe connecting rod. The crank webs are recessed to allowproper axial alignment of the connecting rod. As a rule it isnot necessary to have additional supply of lubricant. Only inengines with sparse lubrication need consideration be givento provide lubricating slots in the connecting rod bores as withcrank pin end guidance.


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RADIAL CLEARANCE

Metric series crank pin bearingsThe high speeds of modern production engines dictate theneed for crank pin bearings with a relatively large radialclearance. As an approximation, the minimum clearance canbe taken as the crank pin diameter/1000. The maximumradial clearance would be a result of the sorting plan shownin Table 3. As shown in the example of the matching scheme therecommended mounting diameters for the crank pin positionare G6 for the connecting rod bore diameters and h5 for thecrank pin diameters. Axial location of the cage is shown onthe crank pin end guidance arrangement. Racing and sport engines operate at yet even higherspeeds than production engines, requiring 50% larger radialclearances in the crank pin bearings. The larger radialclearances should also be used in bores of split connectingrods to avoid the danger of distortion resulting from theunavoidable connecting rod deformation occurring inoperation. Consult Timken Engineering for advice on suchapplications.

Metric series wrist pin bearingsThe radial clearance in wrist pin bearings should be held assmall as possible. The minimum clearance should be aimedat 2 µm with the maximum clearance resulting from theproposed sorting plan in Table 3. The maximum clearanceshould be held as close as possible to 12 µm for all wrist pinbearings based on sorting wrist pins made to a tolerance h5,small end bore diameter tolerance of K6 and needle rollergrades as shown in Table 3.

Suitable materials and heat treatmentConnecting rod crank pin end and wrist pin end bores serveas raceways:

a casehardening steel such as 15 CrNi 6, 17 MnCr 5 orAISI 8620.

Crank pins:e.g. casehardening steel 15 Cr 3, AISI 8620, AISI 1018 orthrough-hardening steel 100 Cr 6, AISI 52100.

Wrist pins:e.g. casehardening steel Ck 15, 15 Cr 3 or through-hardening steel 100 Cr 6, AISI 52100.

The effective case depth (50 HRC) of the raceways shouldbe 0,5 mm minimum, the surface hardness should be 60 HRCor 700 HV minimum. After hardening, the connecting rods must be stressrelieved. The connecting rod raceway bores as well as the crankpins and the wrist pins must be precision ground or preferablyhoned to a surface finish Ra not exceeding 0,16 µm.

Form tolerancesThe form tolerances for crank pins, wrist pins and connectingrod bores are listed in Table 2.

Table 2 – Form Tolerances

Dimension in mm

Nominal pin > 10 14 18 25 30diameter ≤ 14 18 25 30 40

Tolerances in µmParallelism*) wrist pin

& crank pin 1 1 2 2 3rod bore 2 3 3 4 4

Circularity(DIN ISO 1101) wrist pin

& crank pin 1 1 1,5 1,5 2rod bore 1,5 2 2 2,5 2,5

*) The parallelism values are valid for the needle roller length Lw.

It is recommended that the parallelism of the wrist pin axisand the crank pin axis be within a tolerance zone of 0,03 mmdiameter over a distance of 100 mm.


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Connecting rod crank pin end bore diameter 26Tolerances and radial clearances in µm

+12 +16 +20+7 +12 +16Needle roller Radial Needle roller Radial Needle roller RadialTolerance clearance Tolerance clearance Tolerance clearance

0 -7 21...29 -4 -5 20...29 -2 -3 20...29-3 -9 -6 -7 -4 -5

Crank pin -3 -5 20...28 -3 21...28 -1 21...28diameter -6 -7 -5 -3

-6 -4 21...29 -1 -2 20...29 0 22...29-9 -6 -3 -4 -2

Matching scheme for a wrist pin bearing arrangement.(three diameter ranges are specified for the connecting rod and wrist pin)

Example:Wrist pin diameter 16 mm, tolerance h5Connecting rod bore diameter 20 mm, tolerance K6Needle roller and cage assembly Torrington K16x20x20SERadial clearance 2 . . . 12 µm

Wrist pin end bore diameter 20Tolerances and radial clearances in µm

-6 -2 +2-11 -6 -2Needle roller Radial Needle roller Radial Needle roller RadialTolerance clearance Tolerance clearance Tolerance clearance

0 -4 -5 2...11 -2 -3 2...11-3 -6 -7 -4 -5

Wrist pin -3 -5 2...10 -3 -4 3...12 -1 -2 3...12diameter -6 -7 -5 -6 -3 -4

-6 -4 -5 3...12 -1 -2 2...10 0 4...10-8 -6 -7 -3 -4 -2

TORRINGTON METRIC SERIES NEEDLEROLLER AND CAGE RADIAL ASSEMBLIESFOR CONNECTING ROD APPLICATIONS

Table 3 – Radial Clearance

Matching scheme for a crank pin bearing arrangement(three diameter ranges are specified for the connecting rod and crank pin)

Example:Crank pin diameter 20 mm, tolerance h5Connecting rod bore diameter 26 mm, tolerance G6Needle roller and cage assembly Torrington K20x26x12BERadial clearance 20 . . . 29 µm

20

+20 +7

16

+2 -11

0 -8

0 -9


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440

Bc

Fw Ew

LwAssemblies for Crank Pin EndApplications – Metric Series

Crank Pin Dimensions Assembly Load ratings MassDiameter Fw Ew Bc Lw Designation dynamic static Approx.

-0,2 C C0mm -0,55 kN kg

12 12 16 10 7,8 K12x16x10BE 6,21 6,7 0,00512 17 10 7,8 K12x17x10BE 7,32 7,21 0,007

14 14 18 10 7,8 K14x18x10BE 6,89 7,98 0,00614 20 10 7,8 K14x20x10BE 8,9 8,61 0,00914 20 12 9,5 K14x20x12BE 10,5 10,6 0,01

16 16 21 10 7,8 K16x21x10BE 8,17 8,9 0,00816 22 12 9,5 K16x22x12BE 11,2 11,9 0,012


19 19 25 15 12,5 K19x25x15BE 22,6 31,2 0,014

20 20 26 12 9,8 K20x26x12BE 13,3 15,8 0,01620 26 17 13,8 K20x26x17BE 14,9 18,2 0,022

22 22 29 15 12,8 K22x29x15BE 18,5 22,3 0,021

24 24 30 15 11,8 K24x30x15BE 15,3 19,7 0,02324 30 17 13,8 K24x30x17BE 19,0 26,3 0,026

25 25 32 16 12,8 K25x32x16BE 19,2 24,3 0,02725 32 24 19,8 K25x32x24BE 27,5 38,5 0,045


30 30 37 16 12,8 K30x37x16BE 21,6 29,8 0,036

35 35 42 20 16,0 K35x42x20BE 28,5 44,7 0,051

K.BE


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Assemblies for Wrist Pin EndApplications – Metric Series

Wrist Pin Dimensions Assembly Load ratings MassDiameter Fw Ew Bc Lw Designation dynamic static Approx.

-0,2 C C0mm -0,55 kN kg

9 9 12 11,5 8,4 K9x12x11,5SE 4,23 4,53 0,003

10 10 13 14,5 11,8 K10x13x14,5SE 5,93 7,2 0,00310 14 13 9,8 K10x14x13SE 6,09 6,2 0,005

12 12 15 13 9,8 K12x15x13SE 6,0 7,72 0,00412 15 15 11,8 K12x15x15SE 6,97 9,36 0,00312 15 17,5 12,8 K12x15x17,5SE 7,45 10,2 0,00612 16 13 9,8 K12x16x13SE 6,03 6,38 0,00712 17 13 9,8 K12x17x13SE 7,61 7,54 0,00912 17 15 12,5 K12x17x15SE 9,3 9,75 0,007

13 13 16 14 9,8 K13x16x14SE 5,62 7,23 0,00513 17 17,7 12,8 K13x17x17 ,7SE 9,23 11,3 0,007

14 14 18 17 11,8 K14x18x17SE 8,59 10,5 0,01

15 15 19 20 15,8 K15x19x20SE 10,8 14,3 0,012

16 16 20 20 15,8 K16x20x20SE 12,0 16,9 0,01316 20 23 15,8 K16x20x23SE 10,7 14,5 0,011

18 18 22 22 17,8 K18x22x22SE 14,4 22,0 0,01418 23 20 15,8 K18x23x20SE 13,6 17,6 0,014

20 20 24 23 17,8 K20x24x23SE 14,8 23,7 0,017

Bc

Lw

Fw Ew

K.SE


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NEEDLE ROLLER AND CAGE RADIALASSEMBLIES – INCH SERIES

Timken Torrington inch series needle roller and cage radialassemblies are available in a variety of sizes and designs.This catalog includes the most popular standard designs.

Reference standards:• ANSI/ABMA 18.2 – Needle roller bearings –

Radial, inch design

Before selecting specific inch series, needle roller and cageradial assemblies, the Needle Bearing Engineering sectionof this catalog should be reviewed.

TYPES OF INCH SERIES NEEDLE ROLLER AND CAGE RADIAL ASSEMBLIES

There are two primary constructions of inch series needle rollerand cage assemblies. The WJ assemblies generally employlarger diameter needle rollers whereas the WJC assembliesnormally employ smaller diameter needle rollers.

CONSTRUCTIONTorrington needle roller and cage radial assemblies have asteel cage which provides both inward and outward retentionfor the needle rollers. The designs provide maximum cagestrength consistent with the inherent high load ratings of needleroller bearings. Accurate guidance of the needle rollers by the cage barsallows for operation at high speeds. Needle roller and cageassemblies have either one or two rows of needle rollers. Also available (on request) are needle roller and cageassemblies using molded, one piece glass reinforced engi-neered polymer cages. These operate well at temperatures upto 250°F (120°C) over extended periods. However, careshould be exercised when bearings are lubricated with oilscontaining additives as service life may be reduced if theoperating temperature exceeds 212°F (100°C). At such hightemperatures oil can deteriorate with time and it is recom-mended that oil change intervals are observed. Needle rollers with relieved ends used in these assembliesare made of high carbon chrome steel, through hardened,ground and lapped to close tolerances for diameter androundness. See the Needle Bearing Engineering section ofthis catalog for further discussion of relieved end rollers.

DIMENSIONAL ACCURACYThe nominal inch assemblies, WJ and WJC, contain needlerollers manufactured to only one diameter grade. Within anyone assembly, the needle rollers have a total diameter toler-ance of .0001 inch. The limit to precision of the radial clearance of mountedneedle roller and cage assemblies is the capability of the userto hold close tolerances on the inner and outer raceways. The tolerance of the overall width of these assemblies isgiven on the tabular pages of this section.

MOUNTING DIMENSIONSThe cage and needle roller assembly normally uses the shaftand housing as the inner and outer raceways, respectively. Inorder to realize full bearing load rating and life, the shaft andhousing must have the correct geometric and metallurgicalcharacteristics. The tables of dimensions for these assemblies list therecommended diameters for the shaft when used as the innerraceway. These are consistent with ISO h5 shaft racewaytolerances. Additional design details for shafts used as innerraceways can be found in the Needle Bearing Engineeringsection of this catalog. Since the housing normally serves as the outer raceway, itshould be of sufficient cross section to maintain adequateroundness and running clearance under load. The tables ofdimensions also list the recommended diameters for thehousings when used as outer raceways. These are consistentwith ISO G6 housing bore tolerances. Additional design detailsfor housings used as outer raceways can be found in theNeedle Bearing Engineering section of this catalog.

WJ WJC


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The recommended mounting diameter tolerances for theseneedle roller and cage assemblies will provide correct runningclearance for most applications.

The needle roller and cage assembly must be axiallylocated by shoulders or other suitable means. End locatingsurfaces should be hardened to minimize wear. For satisfac-tory operation, minimum axial clearance should be 0.008 inch.When using type WJ assembly, fillets adjacent to the assemblymust not exceed 0.03 inch radius. When it is necessary to usefillets adjacent to WJC assembly, please consult TimkenEngineering for recommendations.

LUBRICATIONOil is the preferred lubricant for most applications. In criticalapplications involving high speeds, ample oil flow must beprovided. Where assemblies are subjected to high centrifugal

forces, such as in epicyclic gearing, or inertia forces, as inthe small end of a connecting rod, the contact pressurebetween the cage and the raceway guiding surface becomescritical. The allowable contact pressure depends on acombination of the induced force and the rubbing velocitybetween the cage and the raceway and the rate of lubricantflow. Consult Timken Engineering when cages will besubjected to high induced forces.

SPECIAL DESIGNSNeedle roller and cage assemblies made to special dimen-sions or configurations, such as those which are split toassemble around a one-piece crankshaft, can be madeavailable on special order where quantities permit. Specialplated cages to enhance life under conditions of high inducedforces can also be made available.


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SH

raceway surfaces to be58 HRC or equivalent

FWE

BCSingle RowAssemblies –Inch Series

WJ and WJC

Shaft Dimensions Load Ratings Limiting Bearing Mounting MassDia. Fw Ew Bc Assembly Basic Basic Speed Approx.

Designation Dynamic Static S HC C0 Grease Oil

+0.000-0.015 inches

inch lbf rpm max. min. min. max. lbs

3⁄8 .3750 .5000 0.375 WJC-060806 873 902 24 000 37 000 0.3750 0.3748 0.5002 0.5006 .007

1⁄2 .5000 .6250 0.500 WJC-081008 1 400 1 800 23 000 35 000 0.5000 0.4997 0.6252 0.6256 .011

9⁄16 .5625 .6875 0.500 WJC-091108 1 530 2 080 22 000 34 000 0.5625 0.5622 0.6877 0.6881 .013

5⁄8 .6250 .7500 0.500 WJC-101208 1 580 2 240 18 000 27 000 0.6250 0.6247 0.7503 0.7508 .013.6250 .8750 0.625 WJ-101410 3 510 3 990 19 000 29 000 0.6250 0.6247 0.8753 0.8758 .029.6250 .8750 0.875 WJ-101414 4 780 5 940 19 000 29 000 0.6250 0.6247 0.8753 0.8758 .040

3⁄4 .7500 1.0000 1.000 WJ-121616 6 020 8 370 16 000 24 000 0.7500 0.7496 1.0003 1.0008 .055

13⁄16 .8125 1.0625 .875 WJ-131714 5 650 7 880 14 000 22 000 0.8125 0.8121 1.0628 1.0633 .046

7⁄ 8 .8750 1.1250 1.000 WJ-141816 6 570 9 770 13 000 20 000 0.8750 0.8746 1.1253 1.1258 .062

1 1.0000 1.3125 0.750 WJ-162112 6 320 8 340 12 000 18 000 1.0000 0.9996 1.3129 1.3135 .0771.0000 1.3125 1.000 WJ-162116 8 270 11 800 12 000 18 000 1.0000 0.9996 1.3129 1.3135 .0951.0000 1.3125 1.250 WJ-162120 10 000 15 100 12 000 18 000 1.0000 0.9996 1.3129 1.3135 .123

1 1⁄8 1.1250 1.5000 1.000 WJ-182416 9 520 13 000 10 000 16 000 1.1250 1.1246 1.5004 1.5010 .0901.1250 1.5000 1.250 WJ-182420 11 700 16 800 10 000 16 000 1.1250 1.1246 1.5004 1.5010 .158

1 1⁄4 1.2500 1.6250 0.750 WJ-202612 7 520 9 830 9 300 14 000 1.2500 1.2496 1.6254 1.6260 .1121.2500 1.6250 1.000 WJ-202616 9 910 14 000 9 300 14 000 1.2500 1.2496 1.6254 1.6260 .1341.2500 1.6250 1.250 WJ-202620 12 100 18 200 9 300 14 000 1.2500 1.2496 1.6254 1.6260 .1611.2500 1.6250 1.500 WJ-202624 14 300 22 400 9 300 14 000 1.2500 1.2496 1.6254 1.6260 .233

1 3⁄8 1.3750 1.7500 1.000 WJ-222816 10 300 15 100 8 300 13 000 1.3750 1.3746 1.7504 1.7510 .1471.3750 1.7500 1.250 WJ-222820 12 600 19 600 8 300 13 000 1.3750 1.3746 1.7504 1.7510 .183

1 1⁄2 1.5000 1.8750 1.000 WJ-243016 10 600 16 100 7 600 12 000 1.5000 1.4996 1.8754 1.8760 .1721.5000 1.8750 1.250 WJ-243020 13 000 20 900 7 600 12 000 1.5000 1.4996 1.8754 1.8760 .1981.5000 1.8750 1.500 WJ-243024 15 300 25 800 7 600 12 000 1.5000 1.4996 1.8754 1.8760 .2641.5000 1.8750 1.750 WJ-243028 17 400 30 500 7 600 12 000 1.5000 1.4996 1.8754 1.8760 .295

1 3⁄4 1.7500 2.1250 0.750 WJ-283412 8 870 13 400 6 400 9 900 1.7500 1.7496 2.1254 2.1261 .1361.7500 2.1250 1.000 WJ-283416 11 700 19 100 6 400 9 900 1.7500 1.7496 2.1254 2.1261 .1851.7500 2.1250 1.500 WJ-283424 16 800 30 600 6 400 9 900 1.7500 1.7496 2.1254 2.1261 .315

Load Ratings are based on a minimum raceway hardness of 58 HRC or equivalent.

Minimum axial clearance should be .008 inches.


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Shaft Dimensions Assembly Load Ratings Limiting Bearing Mounting Mass Dia. Fw Ew Bc Designation Basic Basic Speed Approx.

Dynamic Static S H+0.000 C C0 Grease Oil-0.015

inchesinch lbf rpm max. min. min. max. lbs

2 2.0000 2.3750 0.750 WJ-323812 9 610 15 500 5 600 8 600 2.0000 1.9995 2.3754 2.3761 .1872.0000 2.3750 1.000 WJ-323816 12 700 22 100 5 600 8 600 2.0000 1.9995 2.3754 2.3761 .2312.0000 2.3750 1.250 WJ-323820 15 500 28 700 5 600 8 600 2.0000 1.9995 2.3754 2.3761 .2752.0000 2.3750 1.500 WJ-323824 18 200 35 300 5 600 8 600 2.0000 1.9995 2.3754 2.3761 .315

2 1⁄16 2.0625 2.4375 1.000 WJ-333916 13 000 23 100 5 400 8 300 2.0625 2.0620 2.4379 2.4386 .218

2 1⁄8 2.1250 2.5000 1.000 WJ-344016 11 800 20 700 5 200 8 000 2.1250 2.1245 2.5004 2.5011 .2202.1250 2.5000 1.500 WJ-344024 17 600 34 500 5 200 8 000 2.1250 2.1245 2.5004 2.5011 .365

2 3⁄16 2.1875 2.5625 .750 WJ-354112 10 000 16 900 5 000 7 800 2.1875 2.1870 2.5629 2.5636 .1872.1875 2.5625 1.000 WJ-354116 13 000 24 100 5 000 7 800 2.1875 2.1870 2.5629 2.5636 .227

2 1⁄4 2.2500 2.6250 1.000 WJ-364216 12 100 21 600 4 900 7 500 2.2500 2.2495 2.6254 2.6261 .2332.2500 2.6250 1.250 WJ-364220 15 200 28 900 4 900 7 500 2.2500 2.2495 2.6254 2.6261 .291

2 3⁄8 2.3750 2.7500 1.500 WJ-384424 18 300 37 600 4 600 7 100 2.3750 2.3745 2.7504 2.7511 .409

2 1⁄2 2.5000 2.8750 1.000 WJ-404616 12 500 23 400 4 400 6 700 2.5000 2.4995 2.8754 2.8761 .3012.5000 2.8750 1.250 WJ-404620 15 700 31 400 4 400 6 700 2.5000 2.4995 2.8754 2.8761 .3532.5000 2.8750 1.500 WJ-404624 18 700 39 100 4 400 6 700 2.5000 2.4995 2.8754 2.8761 .396

2 3⁄4 2.7500 3.1250 1.000 WJ-445016 13 000 25 300 4 000 6 100 2.7500 2.7495 3.1254 3.1261 .277

3 3.0000 3.3750 1.000 WJ-485416 13 400 27 100 3 600 5 600 3.0000 2.9995 3.3755 3.3764 .3523.0000 3.3750 1.500 WJ-485424 19 200 43 100 3 600 5 600 3.0000 2.9995 3.3755 3.3764 .469

3 1⁄4 3.2500 3.6250 1.000 WJ-525816 13 800 28 900 3 300 5 100 3.2500 3.2494 3.6255 3.6264 .3233.2500 3.6250 1.500 WJ-525824 19 800 46 000 3 300 5 100 3.2500 3.2494 3.6255 3.6264 .486

3 1⁄2 3.5000 3.8750 1.000 WJ-566216 14 200 30 700 3 100 4 700 3.5000 3.4994 3.8755 3.8764 .3833.5000 4.0000 1.000 WJ-566416 17 900 33 800 3 100 4 800 3.5000 3.4994 4.0005 4.0014 .4733.5000 4.0000 1.500 WJ-566424 25 600 53 400 3 100 4 800 3.5000 3.4994 4.0005 4.0014 .792

4 4.0000 4.5000 1.000 WJ-647216 18 800 37 450 2 700 4 200 4.0000 3.9994 4.5005 4.5014 .5284.0000 4.5000 1.500 WJ-647224 26 800 59 200 2 700 4 200 4.0000 3.9994 4.5005 4.5014 .814

5 5.0000 6.0000 1.500 WJ-809624 47 600 82 100 2 200 3 400 5.0000 4.9993 6.0006 6.0015 2.244

Single RowAssemblies –Inch Series(continued)

Load Ratings are based on a minimum raceway hardness of 58 HRC or equivalent.

Minimum axial clearance should be .008 inches.

SH

raceway surfaces to be58 HRC or equivalent

FWEW

BC

WJ and WJC

RADIAL NEEDLE ROLLER AND CAGE ASSEMBLIES RADIAL NEEDLE ROLLER AND CAGE ASSEMBLIES

p445_504serv3_03.pm65 1/14/04, 8:43 AM445

HJ - 16 24 12 2RS

Width16 = 16⁄16 = 1"36 = 36⁄16 = 2 1⁄4"

Needle Roller Bearings – Inch Nominal DimensionsPrefixesHJ inch nominal dimensionsM matched pair

Bore16 = 16⁄16 = 1"80 = 80⁄16 = 5"

Width12 = 12⁄16 = 3⁄4"36 = 36⁄16 = 2 1⁄4"

Inner Rings (6-digit number) – Inch Nominal Dimensions

IR (for use with machined ring needle roller bearings only) 14 = 14⁄16 = 7⁄8"80 = 80⁄16 = 5"

Outside Diameter

I R - 10 14 16

Bore10 = 10⁄16 = 5⁄8"64 = 64⁄16 = 4"

Outside Diameter20 = 20⁄16 = 1 1⁄4"

Suffixes RS one seal2RS two seals

446

p445_504serv3_03.pm65 1/14/04, 8:43 AM446

NEEDLE ROLLER BEARINGS – INCH SERIES

Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 448

Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 448

Lubrication, Load Ratings Factors . . . . . . . . . . . . . . 451


Bearings Without Seals . . . . . . . . . . . . . . . . . . . . . . . 452

Sealed Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 456

Inner Rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 458

Heavy DutyNeedle RollerBearings

NEEDLE ROLLER BEARINGS – METRIC SERIES

Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 464

Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 465

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 466

Load Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 467


Bearings With Inner Rings . . . . . . . . . . . . . . . . . . . . 469

Bearings Without Inner Rings . . . . . . . . . . . . . . . . . . 472

Sealed Bearings With Inner Rings . . . . . . . . . . . . . . 476

Sealed Bearings Without Inner Rings . . . . . . . . . . . 477

Bearings Without Flanges, With Inner Rings . . . . . . 478

Bearings Without Flanges, Without Inner Rings . . . . 479

Inner Rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 482

End Washers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 489

Page Page

HEAVY DUTY NEEDLE ROLLER BEARINGS

447

3

p445_504serv3_03.pm65 1/14/04, 8:43 AM447

448

NEEDLE ROLLER BEARINGS –INCH SERIES

When there is a requirement for a rolling bearing to supportvery high dynamic, static or even shock loads with a restrictedmounting space, the needle roller bearing may be found to givebest results.

Reference standards are:• ANSI/ABMA Standard 18.2 – Needle Roller Bearings -

Radial, Inch Design• Military Standard MS 51961 – Bearing, roller, Needle:

Thick outer ring with rollers and cage.

IDENTIFICATION

HJ IR HJ – .2RS

One Piece Channel-Shaped, Outer Ring

CONSTRUCTIONThe Timken Torrington HJ series needle roller bearing has aone-piece channel-shaped outer ring of bearing quality steel,heat treated to provide maximum load rating. The integral endflanges provide axial location for the needle rollers. The boresof the end flanges serve as piloting surfaces for the cage,locating it to prevent removal of the lubricant film on theraceway.

These bearings have a steel cage which provides inwardretention for the needle rollers. The design assures rollerstability and minimizes friction between the cage and theneedle rollers. The cage has a maximum strength consistentwith the inherent high load ratings of needle roller bearings.

The needle rollers are made from high carbon chromesteel, through-hardened, ground and lapped to close tolerancewith Controlled Contour for optimum load distribution.

The prefix letters HJ in the needle roller bearing designa-tion denote that the bearing is manufactured to inch nominaldimensions.

Bearings are available with one or two lip contact seals aslisted on pages 456 and 457. One seal is designated by suffixletters RS. Two seals are designated by .2RS.

Inner rings can be used with HJ series needle rollerbearings for applications where it is impractical to use the

shaft as the inner raceway. These inch series inner rings areidentified by the prefix letters IR.

Since the entire identification code may not appear on thebearing itself, the manufacturer’s parts list or another reliablesource should always be consulted when ordering bearings forservice or field replacement, to make certain that the correctbearing with the correct lubricant is used.


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449

3

DIMENSIONAL ACCURACY, BEARINGS –INCH SERIES

Tolerances for the HJ bearings are given in Tables 1 and 2.Pages 452 through 457 list the nominal outside diameter,

width and needle roller complement bore diameter for the HJbearings.

Table 1 – Outside Diameter and Width Tolerances, HJ Bearings

D Deviations from NominalNominal Outside Diameter of Single Mean Outside Diameter, Dmp[1] of Width, C

inch inch inch

> ≤ high low high low

0.7500 2.0000 0 -0.0005 0 -0.0052.0000 3.2500 0 -0.0006 0 -0.0053.2500 4.7500 0 -0.0008 0 -0.005

4.7500 7.2500 0 -0.001 0 -0.0057.2500 10.2500 0 -0.0012 0 -0.005

10.2500 12.5000 0 -0.0014 0 -0.005

[1] “Single mean diameter” is defined as the mean diameter in a single radial plane.

Table 2 – Roller Complement Bore Tolerance, HJ Bearings

Fw Deviations from Nominal of the smallest Single Diameter[1]Nominal Roller Complement Bore Diameter of the Roller Complement Bore, Fws min

inch inch

> ≤ low high

0.5000 0.6250 +0.0008 +0.00170.6250 1.1250 +0.0009 +0.00181.1250 1.6250 +0.0010 +0.0019

1.6250 1.8750 +0.0010 +0.00201.8750 2.7500 +0.0011 +0.00212.7500 3.0000 +0.0011 +0.0023

3.0000 4.0000 +0.0012 +0.00244.0000 4.5000 +0.0012 +0.00264.5000 6.0000 +0.0013 +0.0027

6.0000 6.5000 +0.0013 +0.00296.5000 7.7500 +0.0014 +0.00307.7500 9.2500 +0.0014 +0.0032

[1] “The smallest single diameter of the roller complement bore” is defined as the diameter of the cylinder which, when used as a bearing inner ring, results in zero radial internal clearance in the bearing on at least one diameter.


p445_504serv3_03.pm65 1/14/04, 8:43 AM449

450

Table 3 - Bore and Width Tolerances, IR Inner Rings

d Deviations from NominalNominal Bore Diameter of Single Mean Bore Diameter, dmp[1] of Width, B

inch inch inch

> ≤ high low high low

0.3125 0.7500 0 -0.0004 +0.010 +0.0050.7500 2.0000 0 -0.0005 +0.010 +0.0052.0000 3.2500 0 -0.0006 +0.010 +0.005

3.2500 4.2500 0 -0.0008 +0.015 +0.0054.2500 4.7500 0 -0.0008 +0.015 +0.0104.7500 7.0000 0 -0.001 +0.015 +0.0107.0000 8.0000 0 -0.0012 +0.015 +0.010


Table 4 - Outside Diameter Tolerance, IR Inner RingsF Deviations from Nominal

Nominal Outside Diameter of Single Mean Outside Diameter, Fmp[1]

inch inch

> ≤ high low

0.5000 0.6250 -0.0005 -0.00090.6250 1.0000 -0.0007 -0.00121.0000 1.1250 -0.0009 -0.0014

1.1250 1.3750 -0.0009 -0.00151.3750 1.8750 -0.0010 -0.00161.8750 3.0000 -0.0011 -0.0018

3.0000 3.7500 -0.0013 -0.00223.7500 4.5000 -0.0015 -0.00244.5000 5.5000 -0.0015 -0.0025

5.5000 6.5000 -0.0017 -0.00276.5000 8.2500 -0.0019 -0.00318.2500 9.2500 -0.0020 -0.0032


DIMENSIONAL ACCURACY, INNER RINGS –INCH SERIES

Tolerances for the IR inner rings are given in Table 3 and 4. Pages458 through 461 list the nominal outside diameter, width and borediameter for the IR series inner rings.


p445_504serv3_03.pm65 1/14/04, 8:43 AM450

451

3

LUBRICATIONThe outer rings of the HJ bearings are supplied with a lubrica-tion groove on the o.d. and a lubrication hole in this groove tofacilitate relubrication through the outer ring. The IR innerrings have lubrication grooves in the bore and a relubricationhole to facilitate relubrication through the inner ring.

HJ series bearings (with or without seals) are typicallyshipped protected with a corrosion preventive compoundwhich is not a lubricant. When specified by the customer, HJseries bearings may be ordered prelubricated with suitablegreases and oils. For general information regarding lubricationof needle roller bearings, refer to page E88 of the NeedleBearing Engineering section.

SEALSShaft contact seals which fit into the same housing bore asthe heavy duty needle roller bearings may be obtained fromrecognized seal manufacturers. Bearings can also be madeavailable with one or two integral seals — for information andlisting of sealed bearings see pages 456 and 457.

SPECIAL BEARINGSFor needle roller bearings with special dimensions or specialfeatures such as split outer ring, consult Timken Engineering.

MOUNTING DIMENSIONSHJ needle roller bearings are normally mounted in their hous-ings with a clearance fit if the load is stationary relative to thehousing, and with a tight transition fit if the load rotates relativeto the housing. Since the tight transition fit of the bearing in itshousing may result in a reduction of the needle roller comple-ment bore diameter, the shaft raceway diameter should bereduced a like amount.

The tables of dimensions list the recommended ISO H7tolerances for the housing bore and the recommended ISO h6tolerances for the shaft raceway when the outer ring is to bemounted with a clearance fit. They also list the recommendedISO N7 tolerances for the housing bore and the recommendedISO f6 tolerances for the shaft raceway when the outer ring isto be mounted with a tight transition fit.

Other mounting dimensions may be required for specialconditions such as:1. Extremely heavy radial loads2. Shock loads3. Load rotating relative to both inner and outer rings4. Temperature gradient across bearing5. Housing with heat expansion coefficient differing from

that of the bearing.

If these conditions are expected, please consult TimkenEngineering.

Regardless of the fit of the bearing outer ring in thehousing, the outer rings should be axially located by housingshoulders or other positive means. The bearing rings shouldclosely fit against shaft and housing shoulders and must notcontact the fillet radius. The maximum shaft or housing filletras max should be no greater than the minimum bearingchamfer rs min shown in the bearing tables. The unmarkedend of the outer ring should be assembled against the hous-ing shoulder to assure clearing the maximum housing fillet.Similarly, the unmarked end of the inner ring should be as-sembled against the shaft shoulder to assure clearing themaximum shaft fillet.

LOAD RATING FACTORS

Dynamic loadsNeedle roller bearings can accommodate only radial loads.

P = Fr

P = The maximum dynamic radial load that may be applied toa needle roller bearing based on the dynamic load rating Cgiven in the tabular pages. This load should be < C/3.

Static loadsNeedle roller bearings can accommodate only radial loads.

P0 = Fr


p445_504serv3_03.pm65 1/14/04, 8:43 AM451

452

Dimensions Load Ratings

Shaft Fw D C/B rs min Bearing Used with Basic Basic Limiting MassDiameter Designation Inner Ring Dynamic Static Speed Approx.

Designation C Co†

Grease Oilinch lbf rpm lbs.

5⁄8 0.6250 1.1250 0.750 0.025 HJ-101812 IR-061012 4 350 4 650 20 000 30 000 0.11

3⁄4 0.7500 1.2500 0.750 0.04 HJ-122012 IR-081212 4 650 5 240 16 000 25 000 0.130.7500 1.2500 1.000 0.04 HJ-122016 IR-081216 6 190 7 580 16 000 25 000 0.17

0.8750 1.3750 0.750 0.04 HJ-142212 IR-101412 5 180 6 270 13 000 21 000 0.147⁄8 IR-111412

0.8750 1.3750 1.000 0.04 HJ-142216 IR-101416 6 910 9 070 13 000 21 000 0.19

1 1.0000 1.5000 0.750 0.04 HJ-162412 IR-121612 5 680 7 300 12 000 18 000 0.161.0000 1.5000 1.000 0.04 HJ-162416 IR-121616 7 560 10 600 12 000 18 000 0.21

IR-131616

1.1250 1.6250 1.000 0.04 HJ-182616 IR-141816 8 170 12 100 10 000 16 000 0.231 1⁄8 IR-151816

1.1250 1.6250 1.250 0.04 HJ-182620 IR-141820 10 100 15 800 10 000 16 000 0.29IR-151820

1 1⁄4 1.2500 1.7500 1.000 0.04 HJ-202816 IR-162016 8 410 12 900 9 100 14 000 0.251.2500 1.7500 1.250 0.04 HJ-202820 IR-162020 10 400 16 900 9 100 14 000 0.32

1 3⁄8 1.3750 1.8750 1.000 0.04 HJ-223016 IR-182216 8 950 14 400 8 200 13 000 0.281.3750 1.8750 1.250 0.04 HJ-223020 IR-182220 11 100 18 900 8 200 13 000 0.35

1 1⁄2 1.5000 2.0625 1.000 0.06 HJ-243316 IR-202416 10 700 16 300 7 600 12 000 0.341.5000 2.0625 1.250 0.06 HJ-243320 IR-192420 13 200 21 400 7 600 12 000 0.43

IR-202420

1 5⁄8 1.6250 2.1875 1.000 0.06 HJ-263516 IR-212616 10 900 17 200 7 000 11 000 0.361.6250 2.1875 1.250 0.06 HJ-263520 IR-212620 13 500 22 600 7 000 11 000 0.46

IR-222620

1.7500 2.3125 1.000 0.06 HJ-283716 IR-232816 11 200 18 200 6 400 9 900 0.391 3⁄4 IR-242816

1.7500 2.3125 1.250 0.06 HJ-283720 IR-222820 13 900 23 900 6 400 9 900 0.49IR-232820IR-242820

1 7⁄8 1.8750 2.4375 1.250 0.06 HJ-303920 IR-253020 14 700 26 300 6 000 9 200 0.52

2.0000 2.5625 1.000 0.06 HJ-324116 IR-273216 12 100 20 900 5 600 8 600 0.442.0000 2.5625 1.250 0.06 HJ-324120 IR-243220 15 000 27 500 5 600 8 600 0.55

2 IR-253220IR-263220IR-273220

2 1⁄4 2.2500 3.0000 1.500 0.06 HJ-364824 IR-283624 20 200 36 900 5 000 7 600 1.012.2500 3.0000 1.750 0.06 HJ-364828 IR-283628 23 400 44 500 5 000 7 600 1.17

2.5000 3.2500 1.500 0.08 HJ-405224 IR-314024 21 800 42 100 4 400 6 800 1.102 1⁄2 IR-324024

2.5000 3.2500 1.750 0.08 HJ-405228 IR-314028 25 200 50 800 4 400 6 800 1.29IR-324028

2.7500 3.5000 1.000 0.08 HJ-445616 — 15 100 27 000 4 000 6 200 0.802 3⁄4 2.7500 3.5000 1.500 0.08 HJ-445624 IR-364424 22 700 45 700 4 000 6 200 1.20

2.7500 3.5000 1.750 0.08 HJ-445628 IR-354428 26 300 55 100 4 000 6 200 1.40IR-364428

HJ Type – Inch SeriesCheck for availability.

These bearings meet Military Standard MS 51961.Bearing diameters and widths listed below are nominal.For inspection purposes, see tolerance tables on page 449.

HJ HJ with IR

† See pages 458-461 for inch series inner rings. Order inner rings separately.

D

C

dFW

B

r


p445_504serv3_03.pm65 1/14/04, 8:43 AM452

453

3

SH

shaft surface to be58 HRC or

ra*

Da

Mounting Dimensions, Clearance Fit Mounting Dimensions, Tight Transition Fit

S H S H DaBearing

Designation±.015

inch inchmax. min. min. max. max. min. min. max. inch

0.6250 0.6246 1.1250 1.1258 HJ-101812 0.6244 0.6240 1.1239 1.1247 .938

0.7500 0.7495 1.2500 1.2510 HJ-122012 0.7492 0.7487 1.2487 1.2497 1.0620.7500 0.7495 1.2500 1.2510 HJ-122016 0.7492 0.7487 1.2487 1.2497 1.062

0.8750 0.8745 1.3750 1.3760 HJ-142212 0.8742 0.8737 1.3737 1.3747 1.188

0.8750 0.8745 1.3750 1.3760 HJ-142216 0.8742 0.8737 1.3737 1.3747 1.188

1.0000 0.9995 1.5000 1.5010 HJ-162412 0.9992 0.9987 1.4987 1.4997 1.3121.0000 0.9995 1.5000 1.5010 HJ-162416 0.9992 0.9987 1.4987 1.4997 1.312

1.1250 1.1245 1.6250 1.6260 HJ-182616 1.1242 1.1237 1.6237 1.6247 1.438

1.1250 1.1245 1.6250 1.6260 HJ-182620 1.1242 1.1237 1.6237 1.6247 1.438

1.2500 1.2494 1.7500 1.7510 HJ-202816 1.2490 1.2484 1.7487 1.7497 1.5621.2500 1.2494 1.7500 1.7510 HJ-202820 1.2490 1.2484 1.7487 1.7497 1.562

1.3750 1.3744 1.8750 1.8760 HJ-223016 1.3740 1.3734 1.8737 1.8747 1.6881.3750 1.3744 1.8750 1.8760 HJ-223020 1.3740 1.3734 1.8737 1.8747 1.688

1.5000 1.4994 2.0625 2.0637 HJ-243316 1.4990 1.4984 2.0610 2.0622 1.8751.5000 1.4994 2.0625 2.0637 HJ-243320 1.4990 1.4984 2.0610 2.0622 1.875

1.6250 1.6244 2.1875 2.1887 HJ-263516 1.6240 1.6234 2.1860 2.1872 2.0001.6250 1.6244 2.1875 2.1887 HJ-263520 1.6240 1.6234 2.1860 2.1872 2.000

1.7500 1.7494 2.3125 2.3137 HJ-283716 1.7490 1.7484 2.3110 2.3122 2.125

1.7500 1.7494 2.3125 2.3137 HJ-283720 1.7490 1.7484 2.3110 2.3122 2.125

1.8750 1.8744 2.4375 2.4387 HJ-303920 1.8740 1.8734 2.4360 2.4372 2.250

2.0000 1.9993 2.5625 2.5637 HJ-324116 1.9988 1.9981 2.5610 2.5622 2.3752.0000 1.9993 2.5625 2.5637 HJ-324120 1.9988 1.9981 2.5610 2.5622 2.375

2.2500 2.2493 3.0000 3.0012 HJ-364824 2.2488 2.2481 2.9985 2.9997 2.6882.2500 2.2493 3.0000 3.0012 HJ-364828 2.2488 2.2481 2.9985 2.9997 2.688

2.5000 2.4993 3.2500 3.2514 HJ-405224 2.4988 2.4981 3.2481 3.2495 2.938

2.5000 2.4993 3.2500 3.2514 HJ-405228 2.4988 2.4981 3.2481 3.2495 2.938

2.7500 2.7493 3.5000 3.5014 HJ-445616 2.7488 2.7481 3.4981 3.4995 3.1882.7500 2.7493 3.5000 3.5014 HJ-445624 2.7488 2.7481 3.4981 3.4995 3.1882.7500 2.7493 3.5000 3.5014 HJ-445628 2.7488 2.7481 3.4981 3.4995 3.188

The bearing outer ring should normally be a clearance fit whenthe housing is stationary relative to the load. When the housingrotates relative to the load, the tight transition fit is normallyused. See page 451 for further discussion on mounting practice.

For oscillating applications, where low radial clearance maybe important, consult your local Timken sales engineer forrecommendation of mounting dimensions.

The unmarked end of the outer ring should be assembledagainst the housing shoulder to assure clearing the maximumallowable housing fillet (ras max*).

* ras max is equal to the minimum bearing chamfer (rs min) at unmarked end.

HJ Type – Inch Series


p445_504serv3_03.pm65 1/14/04, 8:43 AM453

454

HJ Type – Inch SeriesCheck for availability.

These bearings meet Military Standard MS 51961.Bearing diameters and widths listed below are nominal. For

inspection purposes, see tolerance tables on page 449.

Dimensions Load Ratings

Shaft Fw D C/B rs min Bearing Used with Basic Basic Limiting MassDiameter Designation Inner Ring Dynamic Static Speed Approx.

Designation C Co†

Grease Oilinch lbf rpm lbs.

3 3.0000 3.7500 1.500 0.08 HJ-486024 IR-404824 24 100 50 900 3 700 5 600 1.293.0000 3.7500 1.750 0.08 HJ-486028 IR-384828 43 900 86 000 3 700 5 600 1.51

IR-404828

3 1⁄4 3.2500 4.2500 1.750 0.08 HJ-526828 IR-445228 36 400 68 600 3 400 5 300 2.243.2500 4.2500 2.000 0.08 HJ-526832 IR-445232 41 300 80 500 3 400 5 300 2.56

3 1⁄2 3.5000 4.5000 2.000 0.08 HJ-567232 IR-475632 42 000 84 300 3 200 4 900 2.73IR-485632

3 3⁄4 3.7500 4.7500 2.000 0.10 HJ-607632 IR-506032 44 200 91 000 4 540 4.375IR-526032

4 4.0000 5.0000 2.000 0.10 HJ-648032 IR-526432 46 000 98 000 4 230 4.625IR-546432IR-566432

4 1⁄4 4.2500 5.2500 2.000 0.10 HJ-688432 IR-566832 46 500 102 000 3 970 4.875IR-606832

4 1⁄2 4.5000 6.0000 2.250 0.10 HJ-729636 IR-607236 64 400 116 000 3 850 5.4384.5000 6.0000 2.500 0.10 HJ-729640 IR-607240 71 700 134 000 3 850 5.438

5 5.0000 6.5000 2.000 0.10 HJ-8010432 — 61 200 113 000 3 430 5.9385.0000 6.5000 2.250 0.10 HJ-8010436 IR-648036 69 400 133 000 3 430 5.938

IR-6880365.0000 6.5000 2.500 0.10 HJ-8010440 IR-648040 77 300 152 000 3 430 5.938

5 1⁄2 5.5000 7.0000 2.500 0.10 HJ-8811240 IR-728840 78 600 160 000 3 120 6.4385.5000 7.0000 3.000 0.10 HJ-8811248 IR-728848 93 300 199 000 3 120 6.438

5 3⁄4 5.7500 7.2500 3.000 0.12 HJ-9211648 IR-769248 94 800 207 000 2 960 6.688

6 6.0000 7.5000 2.500 0.12 HJ-9612040 IR-809640 83 000 178 000 2 830 6.9386.0000 7.5000 3.000 0.12 HJ-9612048 IR-809648 99 300 224 000 2 830 6.938

6 1⁄2 6.5000 8.0000 2.500 0.12 HJ-10412840 IR-8810440 86 000 191 000 2 600 7.4386.5000 8.0000 3.000 0.12 HJ-10412848 IR-8810448 102 000 237 000 2 600 7.438

7 1⁄4 7.2500 9.1250 3.000 0.12 HJ-11614648 IR-9611648 118 300 253 000 2 340 8.500

7 3⁄4 7.7500 9.6250 3.000 0.12 HJ-12415448 IR-10412448 123 000 271 000 2 180 9.000

8 1⁄4 8.2500 10.1250 3.000 0.12 HJ-13216248 IR-11213248 127 000 290 000 2 040 9.500

8 3⁄4 8.7500 10.6250 3.000 0.16 HJ-14017048 IR-12014048 130 000 308 000 1 920 10.000

9 1⁄4 9.2500 11.1250 3.000 0.16 HJ-14817848 IR-12814848 136 000 326 000 1 810 10.500

†See pages 458-461 for inch series inner rings. Order inner rings separately.

HJ HJ with IR

D

C

dFW

B

r


p445_504serv3_03.pm65 1/14/04, 8:43 AM454

455

3

The bearing outer ring should normally be a clearance fitwhen the housing is stationary relative to the load. When thehousing rotates relative to the load, the tight transition fit isnormally used. See page 451 for further discussion onmounting practice.

For oscillating applications, where low radial clearancemay be important, consult your local Timken sales engineer forrecommendation of mounting dimensions.



S H S H DaBearing

Designation±.015

inch inchmax. min. min. max. max. min. min. max. inch

3.0000 2.9993 3.7500 3.7514 HJ-486024 2.9988 2.9981 3.7481 3.7495 3.4383.0000 2.9993 3.7500 3.7514 HJ-486028 2.9988 2.9981 3.7481 3.7495 3.438

3.2500 3.2491 4.2500 4.2514 HJ-526828 3.2486 3.2477 4.2481 4.2495 3.8753.2500 3.2491 4.2500 4.2514 HJ-526832 3.2486 3.2477 4.2481 4.2495 3.875

3.5000 3.4991 4.5000 4.5014 HJ-567232 3.4986 3.4977 4.4981 4.4995 4.125

3.7500 3.7491 4.7500 4.7516 HJ-607632 3.7487 3.7477 4.7478 4.7494

4.0000 3.9991 5.0000 5.0016 HJ-648032 3.9986 3.9977 4.9978 4.9994

4.2500 4.2491 5.2500 5.2516 HJ-688432 4.2486 4.2477 5.2478 5.2494

4.5000 4.4991 6.0000 6.0016 HJ-729636 4.4986 4.4977 5.9978 5.99944.5000 4.4991 6.0000 6.0016 HJ-729640 4.4986 4.4977 5.9978 5.99945.0000 4.9990 6.5000 6.5016 HJ-8010432 4.9984 4.9974 6.4978 6.49945.0000 4.9990 6.5000 6.5016 HJ-8010436 4.9984 4.9974 6.4978 6.49945.0000 4.9990 6.5000 6.5016 HJ-8010440 4.9984 4.9974 6.4978 6.4994

5.5000 5.4990 7.0000 7.0016 HJ-8811240 5.4984 5.4974 6.9978 6.99945.5000 5.4990 7.0000 7.0016 HJ-8811248 5.4984 5.4974 6.9978 6.99945.7500 5.7490 7.2500 7.2518 HJ-9211648 5.7484 5.7474 7.2476 7.24946.0000 5.9990 7.5000 7.5018 HJ-9612040 5.9984 5.9974 7.4976 7.49946.0000 5.9990 7.5000 7.5018 HJ-9612048 5.9984 5.9974 7.4976 7.49946.5000 6.4990 8.0000 8.0018 HJ-10412840 6.4984 6.4974 7.9976 7.99946.5000 6.4990 8.0000 8.0018 HJ-10412848 6.4984 6.4974 7.9976 7.99947.2500 7.2488 9.1250 9.1268 HJ-11614648 7.2480 7.2468 9.1226 9.12447.7500 7.7488 9.6250 9.6268 HJ-12415448 7.7480 7.7468 9.6226 9.62448.2500 8.2488 10.1250 10.1270 HJ-13216248 8.2480 8.2468 10.1224 10.12448.7500 8.7488 10.6250 10.6270 HJ-14017048 8.7480 8.7468 10.6224 10.62449.2500 9.2488 11.1250 11.1270 HJ-14817848 9.2480 9.2468 11.1224 11.1244

* ras max is equal to the minumum bearing chamfer (rs min) at unmarked end.

HJ Type – Inch Series

SH


ra*

Da


p445_504serv3_03.pm65 1/14/04, 8:43 AM455

456

Dimensions Load RatingsShaft Fw D C rs min Bearing † §

Diameter Designation Used with Dynamic Static Limiting Mass Inner Ring C Co Speed Approx.

Designation

inch one seal two seals lbf rpm lbs.5⁄8 0.6250 1.1250 1.000 0.025 HJ-101816RS HJ-101816.2RS — 4 350 4 650 6 100 0.15

3⁄4 0.7500 1.2500 1.000 0.04 HJ-122016RS HJ-122016.2RS IR-081216 4 650 5 240 5 100 0.17

7⁄8 0.8750 1.3750 1.000 0.04 HJ-142216RS HJ-142216.2RS IR-101416 5 180 6 270 4 400 0.19

1 1.0000 1.5000 1.000 0.04 HJ-162416RS HJ-162416.2RS IR-121616 5 680 7 300 3 800 0.21IR-131616

1 1⁄8 1.1250 1.6250 1.250 0.04 HJ-182620RS HJ-182620.2RS IR-141820 8 170 12 100 3 400 0.29IR-151820

1 1⁄4 1.2500 1.7500 1.250 0.04 HJ-202820RS HJ-202820.2RS IR-162020 8 410 12 900 3 100 0.32

1 3⁄8 1.3750 1.8750 1.250 HJ-223020RS HJ-223020.2RS IR-182220 8 950 14 400 2 800 0.35

1 1⁄2 1.5000 2.0625 1.250 0.06 HJ-243320RS HJ-243320.2RS IR-192420 10 700 16 300 2 500 0.43IR-202420

1 5⁄ 8 1.6250 2.1875 1.250 0.06 HJ-263520RS HJ-263520.2RS IR-212620 10 900 17 200 2 400 0.46

1 3⁄4 1.7500 2.3125 1.250 0.06 HJ-283720RS HJ-283720.2RS IR-222820 11 200 18 200 2 200 0.49IR-232820IR-242820

2 2.0000 2.5625 1.250 0.06 HJ-324120RS HJ-324120.2RS IR-243220 12 100 20 900 1 900 0.55IR-253220IR-263220IR-273220

2 1⁄4 2.2500 3.0000 1.750 0.06 HJ-364828RS HJ-364828.2RS IR-283628 20 200 36 900 1 700 1.17

2 1⁄2 2.5000 3.2500 1.750 0.08 HJ-405228RS HJ-405228.2RS IR-222620 21 800 42 100 1 500 1.29IR-314028IR-324028

2 3⁄4 2.7500 3.5000 1.750 0.08 HJ-445628RS HJ-445628.2RS IR-354428 22 700 45 700 1 400 1.40IR-364428

3 3.0000 3.7500 1.750 0.08 HJ-486028RS HJ-486028.2RS IR-384828 24 100 50 900 1 300 1.51IR-404828

SEALED HEAVY DUTYNEEDLE ROLLER BEARINGS –INCH SERIESCheck for availability.

Bearing diameters and widths listed below are nominal.For inspection purposes, see tolerance tables on page 449.

Bearings are available with one or two lip contact seals asshown. These seals are designed to retain lubricant in thebearing and to exclude foreign material. The single seal isnormally installed in the stamped end of the bearing.

These seals limit the bearing operating temperature between-25°F and +225°F (-30°C and +110° C). If the operatingtemperature must be outside of the above range or if the sealsare exposed to unusual fluids please consult your local Timkensales engineer.

HJ-RS HJ-.2RS

† See pages 458-461 for inch series inner rings. Order inner rings separately.

§ Based on standard seal shaft contact speed of 1000 ft.⁄min.

D

C C

FW FW

r


p445_504serv3_03.pm65 1/14/04, 8:43 AM456

457

3

SEALED HEAVY DUTYNEEDLE ROLLER BEARINGS –INCH SERIESThe bearing outer ring should normally be a clearance fitwhen the housing is stationary relative to the load. When thehousing rotates relative to the load, the tight transition fit isnormally used. See page 451 for further discussion onmounting practice.

For oscillating applications, where low radial clearancemay be important, consult Timken Engineering for recom-mendation of mounting dimensions.



S H S H DaBearingDesignation ±.015

inchmax. min. min. max. max. min. min. max. inch

0.6250 0.6246 1.1250 1.1258 -101816 0.6244 0.6240 1.1239 1.1247 .938

0.7500 0.7495 1.2500 1.2510 -122016 0.7492 0.7487 1.2487 1.2497 1.062

0.8750 0.8745 1.3750 1.3760 -142216 0.8742 0.8737 1.3737 1.3747 1.188

1.0000 0.9995 1.5000 1.5010 -162416 0.9992 0.9987 1.4987 1.4997 1.312

1.1250 1.1245 1.6250 1.6260 -182620 1.1242 1.1237 1.6237 1.6247 1.438

1.2500 1.2494 1.7500 1.7510 -202820 1.2490 1.2484 1.7487 1.7497 1.562

1.3750 1.3744 1.8750 1.8760 -223020 1.3740 1.3734 1.8737 1.8747 1.688

1.5000 1.4994 2.0625 2.0637 -243320 1.4990 1.4984 2.0610 2.0622 1.875

1.6250 1.6244 2.1875 2.1887 -263520 1.6240 1.6234 2.1860 2.1872 2.000

1.7500 1.7494 2.3125 2.3137 -283720 1.7490 1.7484 2.3110 2.3122 2.125

2.0000 1.9993 2.5625 2.5637 -324120 1.9988 1.9981 2.5610 2.5622 2.375

2.2500 2.2493 3.0000 3.0012 -364828 2.2488 2.2481 2.9985 2.9997 2.688

2.5000 2.4993 3.2500 3.2514 -405228 2.4988 2.4981 3.2481 3.2495 2.938

2.7500 2.7493 3.5000 3.5014 -445628 2.7488 2.7481 3.4981 3.4995 3.188

3.0000 2.9993 3.7500 3.7514 -486028 2.9988 2.9981 3.7481 3.7495 3.438

* ras max is equal to the minimum bearing chamfer (rs min) at unmarked end.

F FSH


ra ra* *

Da Da

Bearing Bearing withInner Ring


p445_504serv3_03.pm65 1/14/04, 8:43 AM457

458

d F

B

r

INNER RINGS – INCH SERIESCheck for availability.

These inner rings meet Military Standard MS 51962Inner ring diameters and widths listed below are nominal. For

inspection purposes, see tolerance tables on page 450.

Shaft Dimensions Inner Ring Used withDiameter d F B r s min Designation Bearing

Designation

inch3⁄8 0.3750 0.6250 0.750 0.025 IR-061012 HJ-101812

1⁄2 0.5000 0.7500 0.750 0.04 IR-081212 HJ-1220120.5000 0.7500 1.000 0.04 IR-081216 HJ-122016

5⁄8 0.6250 0.8750 0.750 0.04 IR-101412 HJ-1422120.6250 0.8750 1.000 0.04 IR-101416 HJ-142216

11⁄16 0.6875 0.8750 0.750 0.04 IR-111412 HJ-142212

3⁄4 0.7500 1.0000 0.750 0.04 IR-121612 HJ-1624120.7500 1.0000 1.000 0.04 IR-121616 HJ-162416

13⁄16 0.8125 1.0000 1.000 0.04 IR-131616 HJ-162416

7⁄8 0.8750 1.1250 1.000 0.04 IR-141816 HJ-1826160.8750 1.1250 1.250 0.04 IR-141820 HJ-182620

15⁄16 0.9375 1.1250 1.000 0.04 IR-151816 HJ-1826160.9375 1.1250 1.250 0.04 IR-151820 HJ-182620

1 1.0000 1.2500 1.000 0.04 IR-162016 HJ-2028161.0000 1.2500 1.250 0.04 IR-162020 HJ-202820

1 1⁄8 1.1250 1.3750 1.000 0.04 IR-182216 HJ-2230161.1250 1.3750 1.250 0.04 IR-182220 HJ-223020

1 3⁄16 1.1875 1.5000 1.250 0.06 IR-192420 HJ-243320

1 1⁄4 1.2500 1.5000 1.000 0.06 IR-202416 HJ-2433161.2500 1.5000 1.250 0.06 IR-202420 HJ-243320

1 5⁄16 1.3125 1.6250 1.000 0.06 IR-212616 HJ-2635161.3125 1.6250 1.250 0.06 IR-212620 HJ-263520

1 3⁄8 1.3750 1.6250 1.250 0.06 IR-222620 HJ-2635201.3750 1.7500 1.250 0.06 IR-222820 HJ-283720

1 7⁄16 1.4375 1.7500 1.000 0.06 IR-232816 HJ-2837161.4375 1.7500 1.250 0.06 IR-232820 HJ-283720

1 1⁄2 1.5000 1.7500 1.000 0.06 IR-242816 HJ-2837161.5000 1.7500 1.250 0.06 IR-242820 HJ-2837201.5000 2.0000 1.250 0.06 IR-243220 HJ-324120

1 9⁄16 1.5625 1.8750 1.250 0.06 IR-253020 HJ-3039201.5625 2.0000 1.250 0.06 IR-253220 HJ-324120

1 5⁄8 1.6250 2.0000 1.250 0.06 IR-263220 HJ-324120

1 11⁄16 1.6875 2.0000 1.000 0.06 IR-273216 HJ-3241161.6875 2.0000 1.250 0.06 IR-273220 HJ-324120

1 3⁄4 1.7500 2.2500 1.500 0.06 IR-283624 HJ-3648241.7500 2.2500 1.750 0.06 IR-283628 HJ-364828

1 15⁄16 1.9375 2.5000 1.500 0.08 IR-314024 HJ-4052241.9375 2.5000 1.750 0.08 IR-314028 HJ-405228


p445_504serv3_03.pm65 1/14/04, 8:44 AM458

459

3

S

ra*

INNER RINGS – INCH SERIESThese inner rings are designed for either a loose transition fit oran interference fit on the shaft. These fits, used in conjunctionwith the proper outer ring fit, will provide the correct operatingclearances for most applications. If an interference fit is used forthe inner ring, the outer ring should be mounted with a clearancefit. See page 451 for further discussion of mounting fits.

The shaft shoulder diameter adjacent to the inner ring mustnot exceed the inner ring O.D.

The unmarked end of the inner ring should be assembledagainst the shaft shoulder to assure clearing the maximumallowable shaft fillet (ras max *).

S S MassLoose Transition Fit Inner Ring Interference Fit Approx.

Shaft Diameter Designation Shaft Diameterinches inches

max. min. max. min. lbs.

0.3748 0.3744 IR-061012 0.3755 0.3752 0.04

0.4997 0.4993 IR-081212 0.5006 0.5003 0.050.4997 0.4993 IR-081216 0.5006 0.5003 0.07

0.6247 0.6243 IR-101412 0.6256 0.6253 0.060.6247 0.6243 IR-101416 0.6256 0.6253 0.08

0.6872 0.6868 IR-111412 0.6881 0.6878 0.05

0.7497 0.7492 IR-121612 0.7507 0.7503 0.070.7497 0.7492 IR-121616 0.7507 0.7503 0.09

0.8122 0.8117 IR-131616 0.8132 0.8128 0.07

0.8747 0.8742 IR-141816 0.8757 0.8753 0.110.8747 0.8742 IR-141820 0.8757 0.8753 0.13

0.9372 0.9367 IR-151816 0.9382 0.9378 0.080.9372 0.9367 IR-151820 0.9382 0.9378 0.10

0.9997 0.9992 IR-162016 1.0007 1.0003 0.120.9997 0.9992 IR-162020 1.0007 1.0003 0.15

1.1247 1.1242 IR-182216 1.1257 1.1253 0.131.1247 1.1242 IR-182220 1.1257 1.1253 0.17

1.1872 1.1867 IR-192420 1.1882 1.1878 0.22

1.2496 1.2490 IR-202416 1.2508 1.2504 0.151.2496 1.2490 IR-202420 1.2508 1.2504 0.18

1.3121 1.3115 IR-212616 1.3133 1.3129 0.191.3121 1.3115 IR-212620 1.3133 1.3129 0.24

1.3746 1.3740 IR-222620 1.3758 1.3754 0.201.3746 1.3740 IR-222820 1.3758 1.3754 0.31

1.4371 1.4365 IR-232816 1.4383 1.4379 0.211.4371 1.4365 IR-232820 1.4383 1.4379 0.26

1.4996 1.4990 IR-242816 1.5008 1.5004 0.171.4996 1.4990 IR-242820 1.5008 1.5004 0.211.4996 1.4990 IR-243220 1.5008 1.5004 0.46

1.5621 1.5615 IR-253020 1.5633 1.5629 0.281.5621 1.5615 IR-253220 1.5633 1.5629 0.41

1.6246 1.6240 IR-263220 1.6258 1.6254 0.36

1.6871 1.6865 IR-273216 1.6883 1.6879 0.241.6871 1.6865 IR-273220 1.6883 1.6879 0.30

1.7496 1.7490 IR-283624 1.7508 1.7504 0.631.7496 1.7490 IR-283628 1.7508 1.7504 0.74

1.9371 1.9365 IR-314024 1.9383 1.9379 0.791.9371 1.9365 IR-314028 1.9383 1.9379 0.92

* ras max is equal to the minimum inner ring chamfer (rs min) at unmarked end.


p445_504serv3_03.pm65 1/14/04, 8:44 AM459

460

INNER RINGS – INCH SERIESCheck for availability.

These inner rings meet Military Standard MS 51962.Inner ring diameters and widths listed below are nominal.

For inspection purposes, see tolerance tables on page 450.

Shaft d F B r s min Inner Ring Used withDiameter Designation Bearing

Designation

inch inch inch inch

2 2.0000 2.5000 1.500 0.08 IR-324024 HJ-4052242.0000 2.5000 1.750 0.08 IR-324028 HJ-405228

2 3⁄16 2.1875 2.7500 1.750 0.08 IR-354428 HJ-445628

2 1⁄4 2.2500 2.7500 1.500 0.08 IR-364424 HJ-4456242.2500 2.7500 1.750 0.08 IR-364428 HJ-445628

2 3⁄8 2.3750 3.0000 1.750 0.08 IR-384828 HJ-486028

2 1⁄2 2.5000 3.0000 1.500 0.08 IR-404824 HJ-4860242.5000 3.0000 1.750 0.08 IR-404828 HJ-486028

2 3⁄4 2.7500 3.2500 1.750 0.08 IR-445228 HJ-5268282.7500 3.2500 2.000 0.08 IR-445232 HJ-526832

2 15⁄16 2.9375 3.5000 2.000 0.08 IR-475632 HJ-567232

3 3.0000 3.5000 2.000 0.08 IR-485632 HJ-567232

3 1⁄8 3.1250 3.7500 2.000 0.10 IR-506032 HJ-607632

3 1⁄4 3.2500 3.7500 2.000 0.10 IR-526032 HJ-6076323.2500 4.0000 2.000 0.10 IR-526432 HJ-648032

3 3⁄8 3.3750 4.0000 2.000 0.10 IR-546432 HJ-648032

3 1⁄2 3.5000 4.0000 2.000 0.10 IR-566432 HJ-6480323.5000 4.2500 2.000 0.10 IR-566832 HJ-688432

3 3⁄4 3.7500 4.2500 2.000 0.10 IR-606832 HJ-6884323.7500 4.5000 2.250 0.10 IR-607236 HJ-7296363.7500 4.5000 2.500 0.10 IR-607240 HJ-729640

4 4.0000 5.0000 2.250 0.10 IR-648036 HJ-80104364.0000 5.0000 2.500 0.10 IR-648040 HJ-8010440

4 1⁄4 4.2500 5.0000 2.250 0.10 IR-688036 HJ-8010436

4 1⁄2 4.5000 5.5000 2.500 0.10 IR-728840 HJ-88112404.5000 5.5000 3.000 0.10 IR-728848 HJ-8811248

4 3⁄4 4.7500 5.7500 3.000 0.12 IR-769248 HJ-9211648

5 5.0000 6.0000 2.500 0.12 IR-809640 HJ-96120405.0000 6.0000 3.000 0.12 IR-809648 HJ-9612048

5 1⁄2 5.5000 6.5000 2.500 0.12 IR-8810440 HJ-104128405.5000 6.5000 3.000 0.12 IR-8810448 HJ-10412848

6 6.0000 7.2500 3.000 0.12 IR-9611648 HJ-11614648

6 1⁄2 6.5000 7.7500 3.000 0.12 IR-10412448 HJ-12415448

7 7.0000 8.2500 3.000 0.12 IR-11213248 HJ-13216248

7 1⁄2 7.5000 8.7500 3.000 0.16 IR-12014048 HJ-14017048

8 8.0000 9.2500 3.000 0.16 IR-12814848 HJ-14817848

d F

B

r


p445_504serv3_03.pm65 1/14/04, 8:44 AM460

461

3

These inner rings are designed for either a loose transition fit oran interference fit on the shaft. These fits, used in conjunctionwith the proper outer ring fit, will provide the correct operatingclearances for most applications. If an interference fit is used forthe inner ring, the outer ring should be mounted with a clearancefit. See page 451 for further discussion of mounting fits.

The shaft shoulder diameter adjacent to the inner ring mustnot exceed the inner ring O.D.

The unmarked end of the inner ring should be assembledagainst the shaft shoulder to assure clearing the maximumallowable shaft fillet (ras max *).

S S MassLoose Transition Fit Inner Ring Interference Fit Approx.

Shaft Diameter Designation Shaft Diameterinches inches

max. min. max. min. lbs.

1.9996 1.9989 IR-324024 2.0009 2.0004 0.711.9996 1.9989 IR-324028 2.0009 2.0004 0.83

2.1871 2.1864 IR-354428 2.1884 2.1879 1.03

2.2496 2.2489 IR-364424 2.2509 2.2504 0.792.2496 2.2489 IR-364428 2.2509 2.2504 0.92

2.3746 2.3739 IR-384828 2.3759 2.3754 1.24

2.4996 2.4989 IR-404824 2.5009 2.5004 0.872.4996 2.4989 IR-404828 2.5009 2.5004 1.02

2.7496 2.7489 IR-445228 2.7509 2.7504 1.112.7496 2.7489 IR-445232 2.7509 2.7504 1.27

2.9371 2.9364 IR-475632 2.9384 2.9379 1.53

2.9996 2.9989 IR-485632 3.0009 3.0004 1.37

3.1246 3.1239 IR-506032 3.1259 3.1254

3.2495 3.2487 IR-526032 3.2511 3.25053.2495 3.2487 IR-526432 3.2511 3.2505

3.3745 3.3737 IR-546432 3.3761 3.3755

3.4995 3.4987 IR-566432 3.5011 3.50053.4995 3.4987 IR-566832 3.5011 3.5005

3.7495 3.7487 IR-606832 3.7511 3.75053.7495 3.7487 IR-607236 3.7511 3.75053.7495 3.7487 IR-607240 3.7511 3.7505

3.9995 3.9987 IR-648036 4.0011 4.00053.9995 3.9987 IR-648040 4.0011 4.0005

4.2495 4.2487 IR-688036 4.2511 4.2505

4.4995 4.4987 IR-728840 4.5011 4.50054.4995 4.4987 IR-728848 4.5011 4.5005

4.7494 4.7485 IR-769248 4.7513 4.7506

4.9994 4.9985 IR-809640 5.0013 5.00064.9994 4.9985 IR-809648 5.0013 5.0006

5.4994 5.4985 IR-8810440 5.5013 5.50065.4994 5.4985 IR-8810448 5.5013 5.5006

5.9994 5.9985 IR-9611648 6.0013 6.0006

6.4994 6.4985 IR-10412448 6.5013 6.5006

6.9994 6.9985 IR-11213248 7.0013 7.0006

7.4994 7.4982 IR-12014048 7.5014 7.5006

7.9994 7.9982 IR-12814848 8.0014 8.0006

* ras max is equal to the minimum inner ring chamfer (rs min) at unmarked end.

S

ra*

INNER RINGS – INCH SERIES


p445_504serv3_03.pm65 1/14/04, 8:44 AM461

NA 49 04 .2RS

NA 69 / 22

NKJ 7 / 16 TN

PrefixNA needle roller bearing

with inner ringNKJ needle roller bearing

with inner ringNKJS needle roller bearing

with inner ringNAO needle roller bearing

with inner ring,without flanges Inner Ring

Bore Diameter(for NA49/, NA69/,NKJ, NKJS, NAO)7 = 7mm22 = 22mm30 = 30mm

NAO 30 x 45 x 17

Bearing Width(for NKJ, NAO)16 = 16mm17 = 17mm

Outer Ring Diameter45 = 45mm

Needle Roller Bearings with Inner Rings –Metric Nominal Dimensions

Series48 = dimension series 4849 = dimension series 4969 = dimension series 69

Inner Ring Bore Diameter(for NA49, NA69: < 17mm bore)00 = 10mm01 = 12mm(for NA48, NA49, NA69: ≥ 20mm bore)bore code x 5 = bore diameter

02 = 15mm03 = 17mm

SuffixRS lip contact seal

on one side.2RS lip contact seal

on both sidesTN molded cage of

reinforced polymer

462

NEEDLE ROLLER BEARINGS

p445_504serv3_03.pm65 1/14/04, 8:44 AM462

Bore diameter25 = 25mm

Prefix

JR Inner ring for use with metric needle roller bearingJRZ Inner ring for use with metric needle roller bearing,

without mounting chamfers

Width18 = 18mm

JRZ 25 x 30 x 18 JS1

Inner Rings for Needle Roller Bearings – MetricNominal Dimensions

Outside Diameter30 = 30mm

SuffixJS1 Lubrication hole

RNA 49 04 .2RS

RNA 69 / 22

NK 10 / 16 TN

PrefixRNA needle roller

bearing withoutinner ring

NK needle rollerbearing withoutinner ring

NKS needle rollerbearing withoutinner ring

RNAO needle rollerbearing withoutinner ring,without flanges

(NK, NKS, RNAO):10 = 10mm35 = 35mm

RNAO 35 x 45 x 17

SuffixRS lip contact seal

on one side.2RS lip contact seal

on both sidesTN molded cage of

reinforced polymer

Outer Ring Width(for NK, RNAO)16 = 16mm17 = 17mm

Outer Ring Diameter45 = 45mm

Needle Roller Bearings without Inner Rings –Metric Nominal Dimensions

Series48 = dimension series 4849 = dimension series 4969 = dimension series 69

Needle Roller Complement Bore Code(see catalog pages)

(for RNA49/, RNA69/):22 = 28mm28 = 32mm32 = 40mm

Needle Roller Complement Bore Diameter

463


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NEEDLE ROLLER BEARINGS –METRIC SERIESWhen applications involve very heavy dynamic, static or evenshock load conditions the needle roller bearing may be foundto give best results.

Reference standards are:

• ISO 1206 – Needle roller bearings – Light and mediumseries – Dimensions and tolerances.

• DIN 617 – Rolling bearings – Needle roller bearings with cage– Dimension series 48 and 49

TYPES OF METRIC SERIES NEEDLE ROLLER BEARINGS

Needle roller bearings with inner rings

Needle roller bearings without inner rings

Sealed needle roller bearings without inner rings

NKJ(d ≤ 7mm)

NKJ, NKJS ( d ≥ 9mm)NA48, NA49

NA69 ( d ≤ 30mm)

NA69(d ≥ 32mm)

NK(Fw ≤ 10mm)

NK (Fw ≥ 12mm)NKS, RNA48, RNA49RNA69 (Fw ≤ 35mm)

RNA69(Fw ≥ 40mm)

Sealed needle roller bearings with inner rings

NA49RS NA49.2RS RNA49RS RNA49.2RS


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SUFFIXES

RS one seal

.2RS two seals

TN molded cage of engineered reinforced polymer

Needle roller bearings without flanges,without inner rings

Needle roller bearings without flanges,with inner rings

CONSTRUCTIONThe basic constructions of metric series needle roller bearingsare:• with integral end flanges on the one piece channel-shaped

outer rings. (Fw > 12 mm)

• with inserted end washers to provide axial retention of theneedle roller and cage assemblies.(Fw ≤ 10 mm)

• without flanges where separate end washers or housingshoulders are required to provide axial retention of the needleroller and cage assemblies.

Metric series needle roller bearings with inner ringsFrequently it may be impractical to finish the shaft to meetdesired raceway design requirements and standard needleroller bearings with inner rings, forming complete bearings(such as NA series), will have to be used. Such bearings meetthe quality requirements in accordance with ISO standards.

• For inner and outer ring tolerances the metric series bearingsfollow the normal tolerance class in ISO Standard 492covering radial bearings. Bearings to more precise toleranceclasses P6 and P5 may be obtained upon request (seeTables 8 and 9 in the Needle Bearing Engineering section)

• The metric series bearings may be obtained with radialinternal clearance in accordance with ISO Standard 5753also specified for cylindrical roller bearings. Mostly, theyfollow the normal (C0) radial clearance group althoughbearings to clearance groups C2, C3, and C4 may be madeavailable on request (see table 12 in the Needle BearingEngineering section).

• Inner ring and outer ring chamfer dimensions meet therequirements of ISO Standard 582 .

Metric series needle roller bearings withoutinner ringsWhenever the shaft can be used as the inner raceway,needle roller bearings without inner rings provide advantagesof economy and close control of radial internal clearance inoperation. Tolerance class F6 is the normal specification forthe metric series needle roller complement bore diameter ofan unmounted bearing as shown in Table 1. In the case ofneedle roller bearings of series RNAO, without flanges andwithout inner rings, the outer rings and needle roller andcage assemblies are not interchangeable.

Table 1 –Metric series needle Roller Complement Bore DiameterFor Bearings Without Inner Rings.

Fw ∆Fws minmm µm

> ≤ low high

3 6 +10 +186 10 +13 +22

10 18 +16 +2718 30 +20 +3330 50 +25 +4150 80 +30 +4980 120 +36 +58

120 180 +43 +68180 250 +50 +79250 315 +56 +88315 400 +62 +98

RNAO RNAONAO NAO


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Metric series needle roller bearings with integralflangesThe Timken Torrington needle roller bearing has a one-piecechannel-shaped outer ring of bearing quality steel, heat treatedto yield maximum load rating. The integral end flanges provideaxial location for the needle rollers. The bores of the endflanges serve as piloting surfaces for the cage.

A steel cage provides inward retention for the needlerollers and the design assures roller stability and minimizesfriction between the cage and the needle rollers. The cage hasmaximum strength consistent with the inherent high loadratings of needle roller bearings.

Needle roller bearings of series NKJ , NKJS , NA48, andNA49 contain one needle roller and cage assembly, bearingsof series NA69 with bearing bores of 32 mm and above havetwo needle roller and cage assemblies.

The outer ring has a lubricating groove and a lubricatinghole for more convenient lubrication of the bearing. However,the smaller bearings of series NKJ and NK do not have alubricating groove or a lubricating hole. (Fw < 10 mm)

Metric series needle roller bearings with insertedend washersSome metric series needle roller bearings have inserted endwashers to provide axial retention of the needle roller and cageassembly. The needle roller and cage radial assemblies,consistent with other Torrington designs, provide inward andoutward retention for the needle rollers.

Metric series needle roller bearings without flangesThe needle roller and cage radial assembly used in Torringtonmetric series needle roller bearings without flanges is slightlynarrower than the inner and outer rings to ensure unobstructedoperation. Separate end washers are required to provide axialretention of the needle roller and cage radial assembly. Wideneedle roller bearings using two needle roller and cageassemblies have a lubricating groove and one lubricating holein the outer ring to facilitate relubrication of the bearing.Narrow needle roller bearings do not have a lubricating grooveor a lubricating hole in the outer ring.

Sealed metric series needle roller bearings ofdimension series 49Torrington needle roller bearings of series 49 are available withone or two integral lip contact seals as listed on page 476.

One seal is designated by suffix letters RS. Two seals aredesignated by .2RS. When combining sealed metric seriesneedle roller bearings with inner rings it is recommended touse inner rings shown on page 482 with designation JRZbecause they are wider than the outer rings to ensure positiveseal contact.

These seals limit the bearing operating temperaturebetween -30°C and 110°C. If the operating temperature mustbe outside the above range or if the seals are exposed tounusual fluids, external seals using suitable seal materials orother solutions should be investigated. Sealed bearings arenormally packed with a high quality lithium soap base greasesuitable up to 120°C for short periods of operation.

The limiting speeds specified for sealed bearings listed inthe bearing tables are based on operating conditions deter-mined by testing. Optimum performance may be expectedproviding the bearing is properly installed, with appropriateinternal clearances, and be subjected to a load of low magni-tude. Care should be taken that overheating will not occur,thus preventing breakdown of the grease and eventual bearingfailure.

BEARING MOUNTING

Mounting dimensionsIt is recommended that needle roller bearings are mounted intheir housings with a clearance fit if the load is stationaryrelative to the housing, or with a tight transition fit if the loadrotates relative to the housing. Table 2 lists the recommendedtolerances for the housing bore and the shaft raceway formetric series bearings without inner rings. Table 3 lists therecommended shaft tolerances for the above two mountingconditions when the metric series bearings are used with innerrings. The recommended housing bore tolerances for metricseries bearings with inner rings is the same as the housingbore tolerance listed in Table 2 for metric series bearingswithout inner rings. Other quality requirements for shafts andhousings are given in the Needle Bearing Engineering sectionof this catalog.

Other mounting dimensions may be required for specialoperating conditions such as:

1. Extremely heavy radial loads

2. Shock loads

3. Temperature gradient across bearing

4. Housing material with heat expansion coefficientdifferent than that of the bearing


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Table 2 – Mounting Tolerances For Metric SeriesBearings Without Inner RingRotation Nominal ISO tolerance Nominal shaft ISO toleranceconditions housing zone for diameter F zone for

bore diameter D housing shaftmm mm

Load all diameters H7 all diameters h6stationary (J7)relative tohousing

General all diameters K7 all diameters g6work withlargerclearance

Load all diameters N7 all diameters f6rotatesrelative tohousing

NOTE: Care should be taken that the selected bearing internalclearance is appropriate for the operating conditions.Details of shaft and housing quality requirements are given on pagesE115 and E116.

Table 3 – Shaft Tolerances For Metric Series BearingsWith Inner Rings (Use housing tolerance shown in Table 2)

Rotation Nominal shaft ISO toleranceconditions diameter d, mm zone for shaft

load rotates all diameters g6relative to housing

load stationary > ≤relative to housing 40 k6

40 100 m6100 140 m6140 n6

NOTE: Care should be taken that the selected bearing internalclearance is appropriate for the operating conditions.Details of shaft and housing quality requirements are given on pageE115 and E116.

Regardless of the fit of the bearing outer ring in the housing,the outer ring should be axially located by housing shouldersor other positive means. The bearing rings should closely fitagainst the shaft and housing shoulders and must not contactthe fillet radius. In fact, the maximum shaft or housing filletras max should be no greater than the minimum bearingchamfer rs min as shown in Table 4.

In order to permit mounting and dismounting of the shaft, themaximum diameter D1 in Table 5 must not be exceeded. Fwis shown in the bearing tables.

Table 5 – Shoulder diameter D1max for Metric SeriesBearings

Dimensions in mm

Needle rollercomplement > 20 55 100 250bore diameter ≤ 20 55 100 250Fw

Diameter D1max Fw -0,3 Fw -0,5 Fw -0,7 Fw -1 Fw -1,5

Needle roller bearings without flanges of series RNAO andNAO must have the needle roller and cage radial assemblyproperly end guided by shoulders as shown in Table 6, orother suitable means such as the spring steel washers(SNSH) shown on page 488. These end guiding surfacesshould be hardened and precision turned or ground tominimize wear and should properly fit against the outer ringsand the inner rings to provide the desired end clearance forthe needle roller and cage assembly.

LOAD RATING FACTORS

Dynamic loadsNeedle roller bearings can accommodate only radial loads.

P = Fr (kN)

P = The maximum dynamic radial load that may be applied toa needle roller bearing based on the dynamic load rating Cgiven in the tabular pages. This load should be < C/3.

Static loadsNeedle roller bearings can accommodate only radial loads.

P0 = Fr (kN)

Mounting in setsNeedle roller bearings which are mounted side by side ormust have the same cross-section and radial internal clear-ances, after mounting.

Table 4 – Fillets, undercuts, and shoulder heightsFor Metric Series Bearings

r ra

r h

r h

rD1F

ra

r ra2

r h

r h

rD1F

t

b

t

b

ra2

rs ras t r a2s b hmin max min minmm

0,15 0,15 0,60,3 0,3 10,6 0,6 21 1 0,2 1,3 2 2,51,1 1 0,3 2 3 3,251,5 1,5 0,4 2 3,2 4

2 2 0,5 2,5 4 52,1 2,1 0,5 3 4,7 5,53 2,5 0,5 3,5 5,3 6


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Dimensions Bearing series Dimensions Bearing series

RNAO NAO

FxD D2 D3 D5 dxD D1 D2 D3 D5

min max min max min max minmm mm

10x17 10,3 12,7 13,3 6x17 9,7 10,3 12,7 13,312x19 12,3 14,7 15,3 8x19 11,7 12,3 14,7 15,314x22 14,4 17,6 18,3 10x22 13,7 14,4 17,6 18,315x23 15,4 18,6 19,3 10x26 13,7 14,6 19,6 20,316x24 16,4 19,6 20,3 12x24 15,7 16,4 19,6 20,3

17x25 17,4 20,6 21,3 12x28 15,7 16,6 21,6 22,318x26 18,4 21,6 22,3 15x28 19,5 20,4 23,6 24,318x30 18,6 23,6 24,5 15x32 19,5 20,6 25,6 26,520x28 20,4 23,6 24,3 17x30 21,5 22,4 25,6 26,320x32 20,6 25,6 26,5 17x35 21,5 22,8 28,4 29,5

22x30 22,4 25,6 26,3 20x35 24,5 25,6 29,4 30,522x35 22,8 28,4 29,5 20x37 24,5 25,8 31,4 32,525x35 25,6 29,4 30,5 25x40 29,5 30,6 34,4 35,525x37 25,8 31,4 32,5 25x42 29,5 30,8 36,4 37,528x40 28,8 34,4 35,5 30x45 34,5 35,6 39,4 40,5

30x40 30,6 34,4 35,5 30x47 34,5 35,8 41,4 42,530x42 30,8 36,4 37,5 35x50 39,5 40,6 44,4 45,535x45 35,6 39,4 40,5 35x55 39,5 41 47,2 48,535x47 35,8 41,4 42,5 40x55 44,5 45,6 49,4 50,540x50 40,6 44,4 45,5 40x62 44,5 46 52,2 53,5

40x55 41 47,2 48,5 45x62 49,5 50,6 54,4 55,845x55 45,6 49,4 50,5 45x72 54,5 56 62,2 63,845x62 46 52,2 53,5 50x68 54,5 55,6 59,4 60,850x62 50,6 54,4 55,8 50x78 59,3 61 67,2 68,850x65 51 57,2 58,5 55x85 64,3 66 72,2 73,8

55x68 55,6 59,4 60,8 60x90 69,3 71 77,2 78,855x72 56 62,2 63,8 65x95 74,3 76 82,2 8460x78 61 67,2 68,8 70x100 79,3 81 87,2 8965x85 66 72,2 73,8 75x105 84,3 86 92,2 9470x90 71 77,2 78,8 80x110 89,3 91 97,2 99

75x95 76 82,2 84 85x115 94,3 96 102,2 10480x100 81 87,2 89 90x120 99,3 101 107,2 10985x105 86 92,2 9490x110 91 97,2 9995x115 96 102,2 104100x120 101 107,2 109

Table 6 – Mounting dimensions for metric series needle roller bearings without flanges

D2D F D3D F D5

Guidance in the housing Guidance on the shaft

D3D d D5D1D d D2


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Needle Roller Bearingswith Inner Rings – Metric Series

Shaft Dimensions Bearing Load ratings Limiting speeds MassDiameter Designation dynamic static Approx.

d D B Fw rs min s1) C C0 Grease Oilmm kN rpm kg

5 5 15 12 8 0,3 1,5 NKJ5/12 4,57 4,89 26 000 41 000 0,0145 15 16 8 0,3 1,5 NKJ5/16 5,22 5,78 26 000 41 000 0,017

6 6 16 12 9 0,3 1,5 NKJ6/12 4,27 4,6 26 000 40 000 0,0156 16 16 9 0,3 1,5 NKJ6/16 5,57 6,47 26 000 40 000 0,019

7 7 17 12 10 0,3 1,5 NKJ7/12 5,4 6,43 25 000 39 000 0,0177 17 16 10 0,3 1,5 NKJ7/16TN 5,3 6,27 25 000 39 000 0,021

9 9 19 12 12 0,3 1,5 NKJ9/12 6,86 7,6 19 000 30 000 0,0189 19 16 12 0,3 1,5 NKJ9/16 6,78 9,03 24 000 37 000 0,024

10 10 22 13 14 0,3 1 NA4900 9,39 10,3 16 000 24 000 0,02510 22 16 14 0,3 1,5 NKJ10/16 12,4 14,8 16 000 24 000 0,03210 22 20 14 0,3 1,5 NKJ10/20 14,7 18,4 16 000 24 000 0,04

12 12 24 13 16 0,3 1 NA4901 10,5 12,3 18 000 28 000 0,02812 24 16 16 0,3 1,5 NKJ12/16 13 16,2 18 000 28 000 0,03612 24 20 16 0,3 1,5 NKJ12/20 15,4 20,2 18 000 28 000 0,04612 24 22 16 0,3 1 NA6901 16,1 21,3 18 000 28 000 0,051

15 15 27 16 19 0,3 1,5 NKJ15/16 14,1 19 15 000 24 000 0,04215 27 20 19 0,3 1,5 NKJ15/20 16,8 23,6 15 000 24 000 0,05415 28 13 20 0,3 1 NA4902 11,8 15,3 14 000 22 000 0,03715 28 23 20 0,3 1,5 NA6902 18,4 26,9 14 000 22 000 0,067

17 17 29 16 21 0,3 2 NKJ17/16 15,3 21,6 14 000 21 000 0,04717 29 20 21 0,3 1,5 NKJ17/20 18,1 26,9 14 000 21 000 0,05917 30 13 22 0,3 1 NA4903 12,2 16,4 13 000 20 000 0,0417 30 23 22 0,3 1,5 NA6903 19,8 30,6 13 000 20 000 0,08417 37 20 24 0,6 1 NKJS17 29,1 32,8 13 000 20 000 0,108

20 20 32 16 24 0,3 1,5 NKJ20/16 16,2 24,3 12 000 18 000 0,05320 32 20 24 0,3 1,5 NKJ20/20 19,3 30,3 12 000 18 000 0,06720 37 17 25 0,3 1,5 NA4904 21,3 25,5 12 000 18 000 0,08420 37 30 25 0,3 1,5 NA6904 36,6 51 12 000 18 000 0,13320 42 20 28 0,6 1 NKJS20 30,3 38,4 11 000 16 000 0,13

22 22 34 16 26 0,3 1,5 NKJ22/16 16,6 25,7 11 000 17 000 0,05822 34 20 26 0,3 2 NKJ22/20 19,7 32 11 000 17 000 0,07122 39 17 28 0,3 1,5 NA49/22 23,3 29,6 10 000 16 000 0,08922 39 30 28 0,3 1 NA69/22 30,6 50,7 10 000 16 000 0,163

25 25 38 20 29 0,3 2 NKJ25/20 23,4 36,4 9 800 15 000 0,08625 38 30 29 0,3 2 NKJ25/30 29,8 56,4 9 700 15 000 0,1325 42 17 30 0,3 1,5 NA4905 24,3 31,7 9 700 15 000 0,09925 42 30 30 0,3 1,5 NA6905 39,7 59,6 9 700 15 000 0,17825 47 22 32 0,6 1,5 NKJS25 36 46,2 9 200 14 000 0,174

28 28 42 20 32 0,3 2 NKJ28/20 24,8 40,4 8 800 14 000 0,10428 42 30 32 0,3 2 NKJ28/30 35,6 64,3 8 800 14 000 0,15628 45 17 32 0,3 1,5 NA49/28 25,1 33,8 9 000 14 000 0,10828 45 30 32 0,3 1,5 NA69/28 43,2 62,5 9 100 14 000 0,19

30 30 45 20 35 0,3 1,5 NKJ30/20 26,1 44,4 8 000 12 000 0,1230 45 30 35 0,3 1,5 NKJ30/30 37,4 70,6 8 000 12 000 0,17930 47 17 35 0,3 1,5 NA4906 25,9 36 8 200 13 000 0,11430 47 30 35 0,3 1 NA6906 42,6 68,2 8 200 13 000 0,20530 52 22 37 0,6 1,5 NKJS30 39 53,4 7 900 12 000 0,198

Fw

r

B

d

r

D Fw

B

d D

r

r

NKJ(d ≤ 7)

NKJ, NKJSNA49, NA69

1) Max. axial displacement

s


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Fw

B

d D

r

rs



32 32 47 20 37 0,3 2 NKJ32/20 26,6 46,4 7 600 12 000 0,12732 47 30 37 0,3 1,5 NKJ32/30 38,2 73,9 7 600 12 000 0,19232 52 20 40 0,6 1,5 NA49/32 32 49,3 7 100 11 000 0,16932 52 36 40 0,6 1 NA69/32 48,6 84,5 7 100 11 000 0,313

35 35 50 20 40 0,3 2 NKJ35/20 27,8 50,4 7 000 11 000 0,13535 50 30 40 0,3 1,5 NKJ35/30 40 80,2 7 000 11 000 0,20835 55 20 42 0,6 1,5 NA4907 32,8 51,7 6 700 10 000 0,17935 55 36 42 0,6 1 NA6907 49,9 88,7 6 700 10 000 0,3435 58 22 43 0,6 1 NKJS35 41,6 60,7 6 700 10 000 0,235

38 38 53 20 43 0,3 2 NKJ38/20 29 54,4 6 400 9 900 0,14638 53 30 43 0,3 1,5 NKJ38/30 41,6 86,6 6 400 9 900 0,196

40 40 55 20 45 0,3 2 NKJ40/20 29,5 56,4 6 100 9 400 0,15240 55 30 45 0,3 1,5 NKJ40/30 42,3 89,8 6 100 9 400 0,22940 62 22 48 0,6 2 NA4908 44,2 67,8 5 900 9 100 0,24840 62 40 48 0,6 1,5 NA6908 70,8 124 5 900 9 100 0,47340 65 22 50 1 1 NKJS40 45,5 71,3 5 700 8 700 0,292

42 42 57 20 47 0,3 2 NKJ42/20 30 58,5 5 900 9 000 0,15942 57 30 47 0,3 1,5 NKJ42/30 39,9 84,1 5 900 9 000 0,241

45 45 62 25 50 0,6 3 NKJ45/25 40,7 79,3 5 500 8 500 0,24445 62 35 50 0,6 3 NKJ45/35 55 117 5 500 8 500 0,34545 68 22 52 0,6 2 NA4909 46,8 74,8 5 400 8 400 0,29145 68 40 52 0,6 1,5 NA6909 74,7 137 5 400 8 400 0,55945 72 22 55 1 1 NKJS45 47,9 78,4 5 100 7 900 0,36

50 50 68 25 55 0,6 3 NKJ50/25 46,1 87,3 5 000 7 800 0,28850 68 35 55 0,6 3 NKJ50/35 62,3 129 5 000 7 800 0,40650 72 22 58 0,6 2 NA4910 48,9 82 4 800 7 400 0,29650 72 40 58 0,6 1,5 NA6910 75,7 144 4 800 7 400 0,57750 80 28 60 1,1 1,5 NKJS50 66,9 103 4 800 7 300 0,523

55 55 72 25 60 0,6 3 NKJ55/25 44,3 94 4 600 7 000 0,2955 72 35 60 0,6 3 NKJ55/35 59,9 139 4 600 7 000 0,4155 80 25 63 1 2,5 NA4911 62 107 4 500 6 900 0,42655 80 45 63 1 2,5 NA6911 94,2 172 4 500 6 900 0,855 85 28 65 1,1 1,5 NKJS55 71 114 4 400 6 700 0,569

60 60 82 25 68 0,6 2 NKJ60/25 49 101 4 000 6 200 0,4460 82 35 68 0,6 2,5 NKJ60/35 66,2 149 4 000 6 200 0,5260 85 25 68 1 1,5 NA4912 64,8 116 4 100 6 300 0,45760 85 45 68 1 2 NA6912 99,3 189 4 100 6 400 0,82960 90 28 70 1,1 1,5 NKJS60 72,6 120 4 000 6 200 0,607

65 65 90 25 73 0,6 2 NKJ65/25 61,5 119 3 800 5 800 0,565 90 25 72 1 1,5 NA4913 66 121 3 900 5 900 0,48965 90 35 73 0,6 2 NKJ65/35 82,5 173 3 800 5 800 0,6965 90 45 72 1 2 NA6913 107 213 3 900 6 000 0,94565 95 28 75 1,1 1,5 NKJS65 76,5 132 3 700 5 800 0,655



NKJ, NKJSNA49, NA69

Fw d D

r

B

r

NA69(d ≥ 32mm)


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Fw

B

d D

r

r s

70 70 95 25 80 1 2 NKJ70/25 65 131 3 400 5 300 0,56170 95 35 80 1 3,5 NKJ70/35 79,7 184 3 400 5 300 0,770 100 28 80 1,1 1,5 NKJS70 80,1 143 3 500 5 400 0,6870 100 30 80 1 2,5 NA4914 86,3 157 3 500 5 400 0,77270 100 54 80 1 2 NA6914 137 286 3 500 5 400 1,45

75 75 105 25 85 1 2 NKJ75/25 76,4 137 3 300 5 000 0,6475 105 30 85 1 2,5 NA4915 92,4 175 3 300 5 000 0,81775 105 35 85 1 2 NKJ75/35 108 214 3 300 5 000 1,0575 105 54 85 1 2 NA6915 143 308 3 300 5 000 1,55

80 80 110 25 90 1 2 NKJ80/25 79,5 147 3 100 4 700 0,7980 110 30 90 1 2,5 NA4916 91,5 176 3 100 4 700 0,86280 110 35 90 1 2 NKJ80/35 113 230 3 100 4 700 0,9880 110 54 90 1 2 NA6916 126 320 3 000 4 700 1,62

85 85 115 26 95 1 3 NKJ85/26 49,3 114 2 800 4 400 0,86285 115 36 95 1 2 NKJ85/36 114 238 2 900 4 500 1,0485 120 35 100 1,1 2,5 NA4917 110 230 2 800 4 200 1,3185 120 63 100 1,1 2 NA6917 150 416 2 700 4 200 2,43

90 90 120 26 100 1 3 NKJ90/26 83,6 163 2 800 4 200 0,7890 120 36 100 1 2,5 NKJ90/36 118 254 2 800 4 200 1,0890 125 35 105 1,1 2,5 NA4918 114 245 2 600 4 000 1,3790 125 63 105 1,1 2 NA6918 175 427 2 600 4 000 2,64

95 95 125 26 105 1 2,5 NKJ95/26 52,2 127 2 600 3 900 0,93595 125 36 105 1 3,5 NKJ95/36 72,8 195 2 600 3 900 1,395 130 35 110 1,1 2,5 NA4919 115 253 2 500 3 800 1,4395 130 63 110 1,1 2 NA6919 158 458 2 500 3 800 2,67

100 100 130 30 110 1,1 2 NKJ100/30 103 220 2 500 3 800 0,984100 130 40 110 1,1 3 NKJ100/40 132 301 2 500 3 800 1,41100 135 32 115 1,1 2 NKJS100 104 226 2 400 3 700 1,34100 140 40 115 1,1 3,5 NA4920 139 296 2 400 3 700 2,01

110 110 140 30 120 1 0,5 NA4822 90,3 230 2 300 3 500 1,21110 150 40 125 1,1 3,5 NA4922 147 325 2 200 3 400 2,19

120 120 150 30 130 1 0,5 NA4824 94,2 249 2 100 3 200 1,31120 165 45 135 1,1 3,5 NA4924 177 407 2 000 3 100 3,04

130 130 165 35 145 1,1 1 NA4826 112 323 1 900 2 900 1,99130 180 50 150 1,5 3 NA4926 201 495 1 800 2 800 4,14

140 140 175 35 155 1,1 1 NA4828 115 346 1 700 2 700 2,12140 190 50 160 1,5 3 NA4928 214 549 1 700 2 600 4,41

150 150 190 40 165 1,1 2 NA4830 142 402 1 600 2 500 2,7

160 160 200 40 175 1,1 2 NA4832 146 425 1 500 2 400 3,15





NKJ, NKJS, NA48,NA49, NA69

Fw d D

r

B

r

NA69(d ≥ 32mm)


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Needle Roller Bearingswithout Inner Rings – Metric Series


Fw D C rs min C C0 Grease Oilmm kN rpm kg

5 5 10 10 0,15 NK5/10TN 2,18 1,71 31 000 47 000 0,0045 10 12 0,15 NK5/12TN 3,04 2,63 31 000 47 000 0,004

6 6 12 10 0,15 NK6/10 3,19 2,9 29 000 44 000 0,0056 12 12 0,15 NK6/12TN 3,07 2,74 29 000 44 000 0,006

7 7 14 10 0,3 NK7/10TN 2,74 2,44 28 000 42 000 0,0077 14 12 0,3 NK7/12TN 3,4 3,22 28 000 42 000 0,009

8 8 15 12 0,3 NK8/12 4,57 4,89 26 000 41 000 0,0118 15 16 0,3 NK8/16 5,22 5,78 26 000 41 000 0,013

9 9 16 12 0,3 NK9/12 4,27 4,6 26 000 40 000 0,0129 16 16 0,3 NK9/16 5,57 6,47 26 000 40 000 0,015

10 10 17 12 0,3 NK10/12 5,4 6,43 25 000 39 000 0,01310 17 16 0,3 NK10/16TN 5,3 6,27 25 000 39 000 0,016

12 12 19 12 0,3 NK12/12 6,86 7,6 19 000 30 000 0,01312 19 16 0,3 NK12/16 6,78 9,03 24 000 37 000 0,018

14 14 22 13 0,3 RNA4900 9,39 10,3 16 000 24 000 0,01814 22 16 0,3 NK14/16 12,4 14,8 16 000 24 000 0,02314 22 20 0,3 NK14/20 14,7 18,4 16 000 24 000 0,028

15 15 23 16 0,3 NK15/16 12,4 15 15 000 24 000 0,02415 23 20 0,3 NK15/20 14,7 18,6 15 000 24 000 0,031

16 16 24 13 0,3 RNA4901 10,5 12,3 18 000 28 000 0,0216 24 16 0,3 NK16/16 13 16,2 18 000 28 000 0,02516 24 20 0,3 NK16/20 15,4 20,2 18 000 28 000 0,03216 24 22 0,3 RNA6901 16,1 21,3 18 000 28 000 0,036

17 17 25 16 0,3 NK17/16 13,6 17,5 17 000 27 000 0,02717 25 20 0,3 NK17/20 15,4 20,4 17 000 27 000 0,034

18 18 26 16 0,3 NK18/16 13,6 17,7 16 000 25 000 0,02818 26 20 0,3 NK18/20 16,1 22 16 000 25 000 0,035

19 19 27 16 0,3 NK19/16 14,1 19 15 000 24 000 0,02919 27 20 0,3 NK19/20 16,8 23,6 15 000 24 000 0,037

20 20 28 13 0,3 RNA4902 11,8 15,3 14 000 22 000 0,02320 28 16 0,3 NK20/16 14,1 19,1 14 000 22 000 0,03220 28 20 0,3 NK20/20 17,5 25,3 14 000 22 000 0,03820 28 23 0,3 RNA6902 18,4 26,9 14 000 22 000 0,04220 32 20 0,6 NKS20 24,4 26,7 15 000 24 000 0,058

21 21 29 16 0,3 NK21/16 15,3 21,6 14 000 21 000 0,03221 29 20 0,3 NK21/20 18,1 26,9 14 000 21 000 0,04

22 22 30 13 0,3 RNA4903 12,2 16,4 13 000 20 000 0,02522 30 16 0,3 NK22/16 15,2 21,7 13 000 20 000 0,03322 30 20 0,3 NK22/20 18 27 13 000 20 000 0,04122 30 23 0,3 RNA6903 19,8 30,6 13 000 20 000 0,05622 35 20 0,6 NKS22 22,9 27,1 14 000 21 000 0,069

Fw

r

C

D Fw

r

C

D Fw

r

C

D

NK(Fw ≤ 10)

NK, NKSRNA49, RNA69

NKTN


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3



24 24 32 16 0,3 NK24/16 16,2 24,3 12 000 18 000 0,03524 32 20 0,3 NK24/20 19,3 30,3 12 000 18 000 0,04524 37 20 0,6 NKS24 29,1 32,8 13 000 20 000 0,073

25 25 33 16 0,3 NK25/16 16,1 24,4 11 000 17 000 0,03725 33 20 0,3 NK25/20 19,1 30,4 11 000 17 000 0,04725 37 17 0,3 RNA4904 21,3 25,5 12 000 18 000 0,06125 37 30 0,3 RNA6904 36,6 51 12 000 18 000 0,09125 38 20 0,6 NKS25 29,1 33 12 000 19 000 0,076

26 26 34 16 0,3 NK26/16 16,6 25,7 11 000 17 000 0,03926 34 20 0,3 NK26/20 19,7 32 11 000 17 000 0,048

28 28 37 20 0,3 NK28/20 22,6 34,4 10 000 16 000 0,05728 37 30 0,3 NK28/30 29 53,8 10 000 15 000 0,08828 39 17 0,3 RNA49/22 23,3 29,6 10 000 16 000 0,05928 39 30 0,3 RNA69/22 30,6 50,7 10 000 16 000 0,10728 42 20 0,6 NKS28 30,3 38,4 11 000 16 000 0,094

29 29 38 20 0,3 NK29/20 23,4 36,4 9 800 15 000 0,05929 38 30 0,3 NK29/30 29,8 56,4 9 700 15 000 0,09

30 30 40 20 0,3 NK30/20 24,2 38,3 9 500 15 000 0,07130 40 30 0,3 NK30/30 34,7 61 9 500 15 000 0,10730 42 17 0,3 RNA4905 24,3 31,7 9 700 15 000 0,07130 42 30 0,3 RNA6905 39,7 59,6 9 700 15 000 0,12730 45 22 0,6 NKS30 34,3 42,8 9 900 15 000 0,114

32 32 42 20 0,3 NK32/20 24,8 40,4 8 800 14 000 0,07432 42 30 0,3 NK32/30 35,6 64,3 8 800 14 000 0,11232 45 17 0,3 RNA49/28 25,1 33,8 9 000 14 000 0,0832 45 30 0,3 RNA69/28 43,2 62,5 9 100 14 000 0,1432 47 22 0,6 NKS32 36 46,2 9 200 14 000 0,12

35 35 45 20 0,3 NK35/20 26,1 44,4 8 000 12 000 0,08135 45 30 0,3 NK35/30 37,4 70,6 8 000 12 000 0,12235 47 17 0,3 RNA4906 25,9 36 8 200 13 000 0,08135 47 30 0,3 RNA6906 42,6 68,2 8 200 13 000 0,14835 50 22 0,6 NKS35 37,5 49,9 8 400 13 000 0,13

37 37 47 20 0,3 NK37/20 26,6 46,4 7 600 12 000 0,08437 47 30 0,3 NK37/30 38,2 73,9 7 600 12 000 0,12837 52 22 0,6 NKS37 39 53,4 7 900 12 000 0,134

38 38 48 20 0,3 NK38/20 21,7 40,9 7 300 11 000 0,08738 48 30 0,3 NK38/30 31,9 67 7 300 11 000 0,131

40 40 50 20 0,3 NK40/20 27,8 50,4 7 000 11 000 0,08940 50 30 0,3 NK40/30 40 80,2 7 000 11 000 0,13740 52 20 0,6 RNA49/32 32 49,3 7 100 11 000 0,140 52 36 0,6 RNA69/32 48,6 84,5 7 100 11 000 0,18540 55 22 0,6 NKS40 40,3 57 7 200 11 000 0,14

Fw

r

C

D

NK, NKSRNA49, RNA69

Needle Roller Bearingswithout Inner Rings – Metric Series

RNA69(Fw ≥ 40)

Fw

r

D

C


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42 42 52 20 0,3 NK42/20 28,3 52,4 6 600 10 000 0,08542 52 30 0,3 NK42/30 40,7 83,5 6 600 10 000 0,14142 55 20 0,6 RNA4907 32,8 51,7 6 700 10 000 0,11442 55 36 0,6 RNA6907 49,9 88,7 6 700 10 000 0,218

43 43 53 20 0,3 NK43/20 29 54,4 6 400 9 900 0,09643 53 30 0,3 NK43/30 41,6 86,6 6 400 9 900 0,13443 58 22 0,6 NKS43 41,6 60,7 6 700 10 000 0,15

45 45 55 20 0,3 NK45/20 29,5 56,4 6 100 9 400 0,145 55 30 0,3 NK45/30 42,3 89,8 6 100 9 400 0,15145 60 22 0,6 NKS45 43 64,2 6 400 9 800 0,156

47 47 57 20 0,3 NK47/20 30 58,5 5 900 9 000 0,10447 57 30 0,3 NK47/30 43 93,1 5 900 9 000 0,158

48 48 62 22 0,6 RNA4908 44,2 67,8 5 900 9 100 0,15448 62 40 0,6 RNA6908 70,8 124 5 900 9 100 0,3

50 50 62 25 0,6 NK50/25 40,7 79,3 5 500 8 500 0,17150 62 35 0,6 NK50/35 55 117 5 500 8 500 0,24250 65 22 1 NKS50 45,5 71,3 5 700 8 700 0,17

52 52 68 22 0,6 RNA4909 46,8 74,8 5 400 8 400 0,20152 68 40 0,6 RNA6909 74,7 137 5 400 8 400 0,392

55 55 68 25 0,6 NK55/25 46,1 87,3 5 000 7 800 0,20755 68 35 0,6 NK55/35 62,3 129 5 000 7 800 0,29355 72 22 1 NKS55 47,9 78,4 5 100 7 900 0,225

58 58 72 22 0,6 RNA4910 48,9 82 4 800 7 400 0,17958 72 40 0,6 RNA6910 75,7 144 4 800 7 400 0,364

60 60 72 25 0,6 NK60/25 44,3 94 4 600 7 000 0,20260 72 35 0,6 NK60/35 59,9 139 4 600 7 000 0,28660 80 28 1,1 NKS60 66,9 103 4 800 7 300 0,337

63 63 80 25 1 RNA4911 62 107 4 500 6 900 0,28563 80 45 1 RNA6911 94,2 172 4 500 6 900 0,54

65 65 78 25 0,6 NK65/25 48,2 97,7 4 200 6 500 0,25765 78 35 0,6 NK65/35 65,2 144 4 200 6 500 0,365 85 28 1,1 NKS65 71 114 4 200 6 700 0,362

68 68 82 25 0,6 NK68/25 49 101 4 000 6 200 0,28768 82 35 0,6 NK68/35 66,2 149 4 000 6 200 0,3568 85 25 1 RNA4912 64,8 116 4 100 6 300 0,30468 85 45 1 RNA6912 99,3 189 4 100 6 300 0,546

70 70 85 25 0,6 NK70/25 43,6 87,9 3 900 6 000 0,29870 85 35 0,6 NK70/35 62,2 139 3 900 6 000 0,41170 90 28 1,1 NKS70 72,6 120 4 000 6 200 0,383

72 72 90 25 1 RNA4913 66 121 3 900 5 900 0,34672 90 45 1 RNA6913 107 213 3 900 5 900 0,679

73 73 90 25 0,6 NK73/25 61,5 119 3 800 5 800 0,3273 90 35 0,6 NK73/35 82,5 173 3 800 5 800 0,45

Needle Roller Bearingswithout Inner Rings –Metric Series Fw

r

C

D

NK, NKSRNA49

RNA69(Fw ≥ 40)

Fw

r

D

C


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3

75 75 92 25 0,6 NK75/25 43,7 90,2 3 600 5 600 0,36475 92 35 0,6 NK75/35 60,9 138 3 600 5 600 0,51875 95 28 1,1 NKS75 76,5 132 3 700 5 800 0,413

80 80 95 25 1 NK80/25 65 131 3 400 5 300 0,33180 95 35 1 NK80/35 79,7 184 3 400 5 300 0,3880 100 30 1 RNA4914 86,3 157 3 500 5 400 0,50280 100 54 1 RNA6914 137 286 3 500 5 400 0,946

85 85 105 25 1 NK85/25 76,4 137 3 300 5 000 0,485 105 30 1 RNA4915 92,4 175 3 300 5 000 0,52885 105 35 1 NK85/35 108 214 3 300 5 000 0,71285 105 54 1 RNA6915 143 308 3 300 5 000 1,02

90 90 110 25 1 NK90/25 79,5 147 3 100 4 700 0,5390 110 30 1 RNA4916 91,5 176 3 100 4 700 0,55690 110 35 1 NK90/35 113 230 3 100 4 700 0,6290 110 54 1 RNA6916 126 320 3 100 4 700 1,05

95 95 115 26 1 NK95/26 49,3 114 2 800 4 400 0,57295 115 36 1 NK95/36 114 238 2 900 4 500 0,64

100 100 120 26 1 NK100/26 83,6 163 2 800 4 200 0,48100 120 35 1,1 RNA4917 110 230 2 800 4 200 0,715100 120 36 1 NK100/36 118 254 2 800 4 200 0,658100 120 63 1,1 RNA6917 150 416 2 800 4 200 1,35

105 105 125 26 1 NK105/26 52,2 127 2 600 3 900 0,625105 125 35 1,1 RNA4918 114 245 2 600 4 000 0,746105 125 36 1 NK105/36 72,8 195 2 600 3 900 0,87105 125 63 1,1 RNA6918 154 437 2 600 4 000 1,5

110 110 130 30 1,1 NK110/30 103 220 2 500 3 800 0,6110 130 35 1,1 RNA4919 115 253 2 500 3 800 0,777110 130 40 1,1 NK110/40 132 132 2 500 3 800 0,9110 130 63 1,1 RNA6919 158 458 2 500 3 800 1,47

115 115 140 40 1,1 RNA4920 139 296 2 400 3 700 1,22

120 120 140 30 1 RNA4822 90,3 230 2 300 3 500 0,785

125 125 150 40 1,1 RNA4922 147 325 2 200 3 400 1,32

130 130 150 30 1 RNA4824 94,2 249 2 100 3 200 0,85

135 135 165 45 1,1 RNA4924 177 407 2 000 3 100 1,98

145 145 165 35 1,1 RNA4826 112 323 1 900 2 900 1,1

150 150 180 50 1,5 RNA4926 201 495 1 800 2 800 2,42

155 155 175 35 1,1 RNA4828 116 346 1 700 2 700 1,17

160 160 190 50 1,5 RNA4928 214 549 1 700 2 600 2,56

165 165 190 40 1,1 RNA4830 142 402 1 600 2 500 1,54

175 175 200 40 1,1 RNA4832 146 425 1 500 2 400 1,91



Fw

r

C

D

NK, NKS RNA48, RNA49

RNA69(Fw ≥ 40)

Needle Roller Bearingswithout Inner Rings –Metric Series Fw

r

D

C


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476


d D B C F w rs min C C0 Greasemm kN rpm kg

10 10 22 14 13 14 0,3 NA4900RS 7,76 8,06 14 000 0,02710 22 14 13 14 0,3 NA4900.2RS 7,76 8,06 14 000 0,027

12 12 24 14 13 16 0,3 NA4901RS 8,64 9,59 12 000 0,03112 24 14 13 16 0,3 NA4901.2RS 8,64 9,59 12 000 0,031

15 15 28 14 13 20 0,3 NA4902RS 9,77 12 9 700 0,04115 28 14 13 20 0,3 NA4902.2RS 9,77 12 9 700 0,041

17 17 30 14 13 22 0,3 NA4903RS 10,1 12,8 8 800 0,04417 30 14 13 22 0,3 NA4903.2RS 10,1 12,8 8 800 0,044

20 20 37 18 17 25 0,3 NA4904RS 18,5 21,2 7 800 0,08720 37 18 17 25 0,3 NA4904.2RS 18,5 21,2 7 800 0,087

25 25 42 18 17 30 0,3 NA4905RS 21 26,4 6 500 0,10625 42 18 17 30 0,3 NA4905.2RS 21 26,4 6 500 0,106

30 30 47 18 17 35 0,3 NA4906RS 22,5 30 5 500 0,11930 47 18 17 35 0,3 NA4906.2RS 22,5 30 5 500 0,119

35 35 55 21 20 42 0,6 NA4907RS 29,1 44,4 4 600 0,19835 55 21 20 42 0,6 NA4907.2RS 29,1 44,4 4 600 0,198

40 40 62 23 22 48 0,6 NA4908RS 38,6 57 4 000 0,26340 62 23 22 48 0,6 NA4908.2RS 38,6 57 4 000 0,263

45 45 68 23 22 52 0,6 NA4909RS 39,4 60 3 700 0,30345 68 23 22 52 0,6 NA4909.2RS 39,4 60 3 700 0,303

50 50 72 23 22 58 0,6 NA4910RS 41,2 65,8 3 300 0,30950 72 23 22 58 0,6 NA4910.2RS 41,2 65,8 3 300 0,309

Sealed Needle Roller Bearingswith Inner Rings –Metric Series

dFw

C

r

D

r

B

NA49RS NA49.2RS

dFw

C

D

r

r

B


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3

Shaft Dimensions Bearing Load ratings Limiting MassDiameter Designation dynamic static speeds Approx.

Fw D C rs min C C0 Greasemm kN rpm kg

14 14 22 13 0,3 RNA4900RS 7,76 8,06 14 000 0,01914 22 13 0,3 RNA4900.2RS 7,76 8,06 14 000 0,019

16 16 24 13 0,3 RNA4901RS 8,64 9,59 12 000 0,02116 24 13 0,3 RNA4901.2RS 8,64 9,59 12 000 0,021

20 20 28 13 0,3 RNA4902RS 9,77 12 9 700 0,02620 28 13 0,3 RNA4902.2RS 9,77 12 9 700 0,026

22 22 30 13 0,3 RNA4903RS 10,1 12,8 8 800 0,02722 30 13 0,3 RNA4903.2RS 10,1 12,8 8 800 0,027

25 25 37 17 0,3 RNA4904RS 18,5 21,2 7 800 0,06225 37 17 0,3 RNA4904.2RS 18,5 21,2 7 800 0,062

30 30 42 17 0,3 RNA4905RS 21 26,4 6 500 0,07530 42 17 0,3 RNA4905.2RS 21 26,4 6 500 0,075

35 35 47 17 0,3 RNA4906RS 22,5 30 5 500 0,08335 47 17 0,3 RNA4906.2RS 22,5 30 5 500 0,083

42 42 55 20 0,6 RNA4907RS 29,1 44,4 4 600 0,1342 55 20 0,6 RNA4907.2RS 29,1 44,4 4 600 0,13

48 48 62 22 0,6 RNA4908RS 38,6 57 4 000 0,16348 62 22 0,6 RNA4908.2RS 38,6 57 4 000 0,163

52 52 68 22 0,6 RNA4909RS 39,4 60 3 700 0,20752 68 22 0,6 RNA4909.2RS 39,4 60 3 700 0,207

58 58 72 22 0,6 RNA4910RS 41,2 65,8 3 300 0,18758 72 22 0,6 RNA4910.2RS 41,2 65,8 3 300 0,187

Fw

r

C

D DFw

r

C

RNA49RS RNA49.2RS

Sealed Needle Roller Bearingswithout Inner Rings –Metric Series


p445_504serv3_03.pm65 1/14/04, 8:44 AM477

478

s

r

B

DFw d Ew

SNSH

Dimensions Load ratings Limiting speeds MassShaft Approx.

Diameter Bearing End Washer dynamic static Endd D B F w Ew rs min s1) Designation Designation C C0 Grease Oil Bearing Washer

mm kN rpm kg g

6 6 17 10 10 13 0,3 0,5 NAO6x17x10 SNSH10,5x17x0,5 5,4 6,43 25 000 39 000 0,014 0,6

8 8 19 10 12 15 0,3 0,5 NAO8x19x10 SNSH12,5x19x0,5 5,85 7,51 24 000 37 000 0,017 0,6

10 10 22 13 14 18 0,3 1 NAO10x22x13 SNSH14,5x22x0,5 9,73 12,5 19 000 29 000 0,026 0,810 22 20 14 18 0,3 0,5 NAO10x22x20 SNSH14,5x22x0,5 12,3 16,8 19 000 29 000 0,041 0,810 26 12 14 20 0,3 0,7 NAO10x26x12 SNSH14,5x26x0,5 10,5 10,6 14 000 21 000 0,036 1,4

12 12 24 13 16 20 0,3 1 NAO12x24x13 SNSH16,5x24x0,5 10,1 13,5 18 000 28 000 0,03 0,912 24 20 16 20 0,3 0,5 NAO12x24x20 SNSH16,5x24x0,5 13,4 19,5 18 000 28 000 0,046 0,912 28 12 16 22 0,3 0,7 NAO12x28x12 SNSH16,5x28x0,5 11,2 11,9 19 000 29 000 0,041 1,6

15 15 28 13 20 24 0,3 1 NAO15x28x13 SNSH20,5x28x0,5 11,5 17,3 14 000 22 000 0,039 1,115 28 26 20 24 0,3 1 NAO15x28x26 SNSH20,5x28x0,5 19,8 34,6 14 000 22 000 0,078 1,115 32 12 20 26 0,3 0,7 NAO15x32x12 SNSH20,5x32x0,5 13 15,3 15 000 23 000 0,05 1,9

17 17 30 13 22 26 0,3 1 NAO17x30x13 SNSH22,5x30x0,5 11,8 18,3 13 000 20 000 0,043 1,217 30 26 22 26 0,3 1 NAO17x30x26 SNSH22,5x30x0,5 20,2 36,6 13 000 20 000 0,084 1,217 35 16 22 29 0,3 1,5 NAO17x35x16 SNSH22,5x35x0,5 19 23,3 13 000 20 000 0,078 2,217 35 32 22 29 0,3 1,5 NAO17x35x32 SNSH22,5x35x0,5 32,7 46,5 13 000 20 000 0,154 2,2

20 20 35 17 25 30 0,3 1,2 NAO20x35x17 SNSH25,5x35x0,5 18,8 29,8 11 000 17 000 0,073 1,820 35 26 25 30 0,3 1,2 NAO20x35x26 SNSH25,5x35x0,5 25 42,8 11 000 17 000 0,112 1,820 37 16 25 32 0,3 1,5 NAO20x37x16 SNSH25,5x37x0,5 19,8 25,3 12 000 18 000 0,08 2,220 37 32 25 32 0,3 1,5 NAO20x37x32 SNSH25,5x37x0,5 34 50,7 12 000 18 000 0,162 2,2

25 25 40 17 30 35 0,3 1,2 NAO25x40x17 SNSH30,5x40x0,5 20,2 34,6 9 300 14 000 0,088 2,125 40 26 30 35 0,3 1,2 NAO25x40x26 SNSH30,5x40x0,5 26,8 49,7 9 300 14 000 0,132 2,125 42 16 30 37 0,3 1,5 NAO25x42x16 SNSH30,5x42x0,5 22,3 31 9 600 15 000 0,096 2,525 42 32 30 37 0,3 1,5 NAO25x42x32 SNSH30,5x42x0,5 38,2 62,1 9 600 15 000 0,185 2,5

30 30 45 17 35 40 0,3 1,2 NAO30x45x17 SNSH35,5x45x0,5 22,1 40,8 7 900 12 000 0,102 2,330 45 26 35 40 0,3 1,2 NAO30x45x26 SNSH35,5x45x0,5 27,7 54,5 7 900 12 000 0,155 2,330 47 16 35 42 0,3 1,5 NAO30x47x16 SNSH35,5x47x0,5 24,5 36,8 8 100 12 000 0,106 2,930 47 32 35 42 0,3 1,5 NAO30x47x32 SNSH35,5x47x0,5 42 73,5 8 100 12 000 0,218 2,9

35 35 50 17 40 45 0,3 1,2 NAO35x50x17 SNSH40,5x50x0,5 23,8 47 6 900 11 000 0,126 2,735 50 34 40 45 0,3 0,7 NAO35x50x34 SNSH40,5x50x0,5 40,9 94,1 6 900 11 000 0,232 2,735 55 20 40 48 0,3 1,5 NAO35x55x20 SNSH41x55x1 35,5 56,3 7 100 11 000 0,185 835 55 40 40 48 0,3 1,7 NAO35x55x40 SNSH41x55x1 60,8 113 7 100 11 000 0,37 8

Needle Roller Bearings without Flanges,with Inner Rings – Metric Series

Fw Ewd

r

B

D

NAO NAO



p445_504serv3_03.pm65 1/14/04, 8:44 AM478

479

3

s

r

B

DFw d Ew

40 40 55 17 45 50 0,3 0,7 NAO40x55x17 SNSH45,5x55x0,5 24,9 51,8 6 100 9 400 0,133 3,340 55 34 45 50 0,3 0,7 NAO40x55x34 SNSH45,5x55x0,5 42,7 104 6 100 9 400 0,257 3,340 62 20 45 53 0,3 1,5 NAO40x62x20 SNSH46x62x1 36 59,5 6 200 9 600 0,215 1140 62 40 45 53 0,3 1,7 NAO40x62x40 SNSH46x62x1 61,7 119 6 200 9 600 0,44 11

45 45 62 20 50 55 0,3 0,7 NAO45x62x20 30,2 68,5 5 400 8 400 0,245 62 40 50 55 0,3 0,5 NAO45x62x40 50,7 137 5 400 8 400 0,38645 72 20 55 63 1 1,5 NAO45x72x20 SNSH56x72x1 40,3 73,5 5 000 7 800 0,345 1345 72 40 55 63 1 1,7 NAO45x72x40 SNSH56x72x1 69,1 147 5 000 7 800 0,68 13

50 50 68 20 55 60 0,3 0,7 NAO50x68x20 30,7 72,4 4 900 7 600 0,2350 68 40 55 60 0,3 0,5 NAO50x68x40 52,7 145 4 900 7 600 0,4550 78 20 60 68 1 1,5 NAO50x78x20 SNSH61x78x1 41,8 79,2 4 600 7 100 0,385 1550 78 40 60 68 1 1,7 NAO50x78x40 SNSH61x78x1 71,7 158 4 600 7 100 0,746 15

55 55 85 30 65 73 1 2 NAO55x85x30 SNSH66x85x1 60,1 129 4 200 6 500 0,69 1855 85 60 65 73 1 1,5 NAO55x85x60 SNSH66x85x1 103 259 4 200 6 500 1,32 18

60 60 90 30 70 78 1 2 NAO60x90x30 62,2 139 3 900 6 000 0,74560 90 60 70 78 1 1,7 NAO60x90x60 107 277 3 900 6 000 1,41

65 65 95 30 75 83 1 2 NAO65x95x30 60,9 138 3 600 5 600 0,7765 95 60 75 83 1 1,7 NAO65x95x60 108 277 3 600 5 600 1,5

70 70 100 30 80 88 1 2 NAO70x100x30 67,5 161 3 400 5 200 0,8570 100 60 80 88 1 1,7 NAO70x100x60 116 322 3 400 5 200 1,6

75 75 105 30 85 93 1 2 NAO75x105x30 69,4 170 3 200 4 900 0,875

80 80 110 30 90 98 1 2 NAO80x110x30 63,6 155 3 000 4 600 0,92

85 85 115 30 95 103 1 2 NAO85x115x30 71 183 2 800 4 400 0,985

90 90 120 30 100 108 1 2 NAO90x120x30 72,4 191 2 700 4 200 1,01

Dimensions Load ratings Limiting speeds MassShaft Approx.

Diameter Bearing End Washer dynamic static Endd D B Fw Ew rs min s1) Designation Designation C C0 Grease Oil Bearing Washer

mm kN rpm kg g

SNSH

Needle Roller Bearings without Flanges,with Inner Rings – Metric Series

Fw Ewd

r

B

D

NAO NAO



p445_504serv3_03.pm65 1/14/04, 8:44 AM479

480

Needle Roller Bearings without Flanges,without Inner Rings – Metric Series

Dimensions Load ratings Limiting MassShaft speeds Approx.

Diameter Bearing End Washer dynamic static EndFw D C Ew rs min Designation Designation C C0 Grease Oil Bearing Washer

mm kN rpm kg g

10 10 17 10 13 0,3 RNAO10x17x10 SNSH10,5x17x0,5 5,4 6,43 25 000 39 000 0,01 0,6

12 12 19 10 15 0,3 RNAO12x19x10 SNSH12,5x19x0,5 5,85 7,51 24 000 37 000 0,012 0,6

14 14 22 13 18 0,3 RNAO14x22x13 SNSH14,5x22x0,5 9,73 12,5 19 000 29 000 0,018 0,814 22 14 18 0,3 RNAO14x22x14 SNSH14,5x22x0,5 12,3 16,8 19 000 29 000 0,041 0,814 26 12 20 0,3 RNAO14x26x12 SNSH14,5x26x0,5 10,5 10,6 14 000 21 000 0,029 1,4

16 16 24 13 20 0,3 RNAO16x24x13 SNSH16,5x24x0,5 10,1 13,5 18 000 28 000 0,022 0,916 24 20 20 0,3 RNAO16x24x20 SNSH16,5x24x0,5 13,4 19,5 18 000 28 000 0,032 0,916 28 12 22 0,3 RNAO16x28x12 SNSH16,5x28x0,5 11,2 11,9 19 000 29 000 0,033 1,6

20 20 28 13 24 0,3 RNAO20x28x13 SNSH20,5x28x0,5 11,5 17,3 14 000 22 000 0,025 1,120 28 26 24 0,3 RNAO20x28x26 SNSH20,5x28x0,5 19,8 34,6 14 000 22 000 0,05 1,120 32 12 26 0,3 RNAO20x32x12 SNSH20,5x32x0,5 13 15,3 15 000 23 000 0,038 1,9

22 22 30 13 26 0,3 RNAO22x30x13 SNSH22,5x30x0,5 11,8 18,3 13 000 20 000 0,028 1,222 30 26 26 0,3 RNAO22x30x26 SNSH22,5x30x0,5 20,2 36,6 13 000 20 000 0,053 1,222 35 16 29 0,3 RNAO22x35x16 SNSH22,5x35x0,5 19,1 23,3 13 000 21 000 0,059 2,222 35 32 29 0,3 RNAO22x35x32 SNSH22,5x35x0,5 32,7 46,5 13 000 21 000 0,116 2,2

25 25 35 17 30 0,3 RNAO25x35x17 SNSH25,5x35x0,5 18,8 29,8 11 000 17 000 0,05 1,825 35 26 30 0,3 RNAO25x35x26 SNSH25,5x35x0,5 25 42,8 11 000 17 000 0,076 1,825 37 16 32 0,3 RNAO25x37x16 SNSH25,5x37x0,5 19,8 25,3 12 000 18 000 0,058 2,225 37 32 32 0,3 RNAO25x37x32 SNSH25,5x37x0,5 19,2 23,6 12 000 18 000 0,118 2,2

30 30 40 17 35 0,3 RNAO30x40x17 SNSH30,5x40x0,5 20,2 34,6 9 300 14 000 0,06 2,130 40 26 35 0,3 RNAO30x40x26 SNSH30,5x40x0,5 26,8 49,7 9 300 14 000 0,088 2,130 42 16 37 0,3 RNAO30x42x16 SNSH30,5x42x0,5 22,3 31 9 600 15 000 0,069 2,530 42 32 37 0,3 RNAO30x42x32 SNSH30,5x42x0,5 38,2 62,1 9 600 15 000 0,131 2,5

35 35 45 17 40 0,3 RNAO35x45x17 SNSH35,5x45x0,5 22,1 40,8 7 900 12 000 0,069 2,335 45 26 40 0,3 RNAO35x45x26 SNSH35,5x45x0,5 27,7 54,5 7 900 12 000 0,091 2,335 47 16 42 0,3 RNAO35x47x16 SNSH35,5x47x0,5 24,5 36,8 8 100 12 000 0,075 2,935 47 32 42 0,3 RNAO35x47x32 SNSH35,5x47x0,5 42 73,5 8 100 12 000 0,156 2,9

40 40 50 17 45 0,3 RNAO40x50x17 SNSH40,5x50x0,5 23,8 47 6 900 11 000 0,086 2,740 50 34 45 0,3 RNAO40x50x34 SNSH40,5x50x0,5 40,9 94,1 6 900 11 000 0,152 2,740 55 20 48 0,3 RNAO40x55x20 SNSH41x55x1 35,5 56,3 7 100 11 000 0,139 840 55 40 48 0,3 RNAO40x55x40 SNSH41x55x1 60,8 113 7 100 11 000 0,276 8

Fw Ew

r

C

D

RNAO

Fw Ew

r

C

D

SNSH RNAO


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3

45 45 55 17 50 0,3 RNAO45x55x17 SNSH45,5x55x0,5 24,9 51,8 6 100 9 400 0,089 3,345 55 34 50 0,3 RNAO45x55x34 SNSH45,5x55x0,5 42,7 104 6 100 9 400 0,168 3,345 62 20 53 0,3 RNAO45x62x20 SNSH46x62x1 30,8 68,1 6 100 9 400 0,163 1145 62 40 53 0,3 RNAO45x62x40 SNSH46x62x1 61,7 119 6 200 9 600 0,325 11

50 50 62 20 55 0,3 RNAO50x62x20 30,2 68,5 5 400 8 400 0,14250 62 40 55 0,3 RNAO50x62x40 51,7 137 5 400 8 400 0,269

55 55 68 20 60 0,3 RNAO55x68x20 30,7 72,4 4 900 7 600 0,16555 68 40 60 0,3 RNAO55x68x40 52,7 145 4 900 7 600 0,3255 72 20 63 1 RNAO55x72x20 SNSH56x72x1 40,3 73,5 5 000 7 800 0,212 1355 72 40 63 1 RNAO55x72x40 SNSH56x72x1 69,1 147 5 000 7 800 0,433 13

60 60 78 20 68 1 RNAO60x78x20 SNSH61x78x1 41,8 79,2 4 600 7 100 0,23 1560 78 40 68 1 RNAO60x78x40 SNSH61x78x1 71,7 158 4 600 7 100 0,436 15

65 65 85 30 73 1 RNAO65x85x30 SNSH66x85x1 60,1 129 4 200 6 500 0,468 1865 85 60 73 1 RNAO65x85x60 SNSH66x85x1 103 259 4 200 6 500 0,876 18

70 70 90 30 78 1 RNAO70x90x30 62,2 139 3 900 6 000 0,50570 90 60 78 1 RNAO70x90x60 107 277 3 900 6 000 0,925

75 75 95 30 83 1 RNAO75x95x30 60,9 138 3 600 5 600 0,5175 95 60 83 1 RNAO75x95x60 104 277 3 600 5 600 0,98

80 80 100 30 88 1 RNAO80x100x30 67,5 161 3 400 5 200 0,5880 100 60 88 1 RNAO80x100x60 116 322 3 400 5 200 1,04

85 85 105 30 93 1 RNAO85x105x30 69,4 170 3 200 4 900 0,586

90 90 110 30 98 1 RNAO90x110x30 63,6 155 3 000 4 600 0,614

95 95 115 30 103 1 RNAO95x115x30 71 183 2 800 4 400 0,651

100 100 120 30 108 1 RNAO100x120x30 72,4 191 2 700 4 200 0,66

Dimensions Load ratings Limiting MassShaft speeds Approx.

Diameter Bearing End Washer dynamic static EndFw D C Ew rs min Designation Designation C C0 Grease Oil Bearing Washer

mm kN rpm kg g

Fw Ew

r

C

D

RNAO

Fw Ew

r

C

D

SNSH RNAO

Needle Roller Bearings without Flanges,without Inner Rings – Metric Series


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482

INNER RINGSWhen it is impractical to meet the shaft raceway designrequirements (hardness, surface finish, case depth, etc.)outlined in the Engineering section of this catalog,standard inner rings may be used.

Inner rings are made of rolling bearing steel andafter hardening, their bores, raceways and end surfaceare ground. Inner rings may be used to provide innerraceway surfaces for needle roller and cage radialassemblies, needle roller bearings and drawn cup needleroller bearings. The extended inner rings are suitable foruse with bearings containing lip contact seals and forapplications in which axial movement may be present.

ConstructionMetric series inner rings are available in three basicdesigns and differ only by the chamfers at the ends ofthe raceway surfaces and the lubricant access holes.Inner rings of series JR have chamfers to assist inbearing installation but are without lubricating holes.Inner rings of series JR.JS1 have bearing installationchamfers and lubricating holes (bore diameters 5 to50mm). Inner rings of series JRZ.JS1 are withoutinstallation chamfers, allowing for maximum possibleraceway contact.

Dimensional accuracyThe tolerances of size, form and runout for TimkenTorrington inner rings meet the requirements of ISOnormal tolerance class for radial bearings (see Table 12of the Needle Bearing Engineering section). Most innerrings are produced with outside diameter racewaytolerance in accordance with h5 which, in most cases, issuitable for combining the needle roller bearings to givethe normal clearance class, and for use with drawn cup

bearings. Other raceway tolerances may also be foundon inner rings for combining with needle roller bearingsto give one of the clearance classes, or other speciallyrequested radial internal clearance requirement.

Mounting of inner ringsInner rings may be mounted on the shaft with either aloose transition fit or an interference fit. These fits usedin conjunction with the proper fit of the bearing outer ring,will provide the correct operating clearances for mostapplications.

Regardless of the fit of the inner ring on the shaft,the inner ring should be axially located by shaft shoul-ders or other positive means. The shaft shoulderdiameter adjacent to the inner ring must not exceed theinner ring outside diameter (per recommendations onpage 467 in the needle roller bearing section).

When inner rings are to be used with the needleroller bearings, appropriate shaft tolerances should beselected from Table 3 in this section. When inner ringsare to be used with drawn cup bearings the recom-mended shaft tolerances are given in the “Inner ring”discussion on page 391 of the “Drawn cup needle rollerbearings” section of this catalog.

END WASHERSWhen the needle roller and cage radial assembly used inseries NAO and RNAO needle roller bearings withoutflanges cannot be axially located by suitable shoulders orside faces, end washers of series SNSH may be used.These end washers, which are made of spring steel, aredesigned to be guided in the housing bore. They aretabulated on page 489.


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Shaft Dimensions Inner ring Massdia. Designation

d F B r smin

mm kg

5 8 8 0,3 JR5x8x8JS1 0,0025 5 8 12 0,3 JR5x8x12 0,003

5 8 16 0,3 JR5x8x16 0,004

6 9 8 0,3 JR6x9x8JS1 0,0026 9 12 0,3 JR6x9x12 0,003

6 6 9 16 0,3 JR6x9x16 0,0046 10 10 0,3 JR6x10x10 0,0046 10 10 0,3 JR6x10x10JS1 0,0046 10 12 0,3 JRZ6x10x12JS1 0,005

7 10 10,5 0,3 JR7x10x10,5 0,0037 7 10 12 0,3 JR7x10x12 0,004

7 10 16 0,3 JR7x10x16 0,005

8 12 10 0,3 JR8x12x10 0,0058 12 10 0,3 JR8x12x10JS1 0,005

8 8 12 10,5 0,3 JR8x12x10,5 0,0058 12 12 0,3 JRZ8xl2x12JS1 0,0068 12 12,5 0,3 JR8x12x12,5 0,006

9 9 12 12 0,3 JR9x12x12 0,0059 12 16 0,3 JR9x12x16 0,006

10 13 12,5 0,3 JR10x13x12,5 0,00510 14 11 0,3 JR10x14x11JS1 0,00710 14 12 0,3 JR10x14x12 0,007

10 10 14 12 0,3 JR10x14x12JS1 0,00710 14 13 0,3 JR10x14x13 0,00710 14 14 0,3 JRZ10x14x14JS1 0,00810 14 16 0,3 JR10x14x16 0,00910 14 20 0,3 JR10x14x20 0,012

12 15 12,5 0,3 JR12x15x12,5 0,00612 15 16 0,3 JR12x15x16 0,00812 15 16,5 0,3 JR12x15x16,5 0,00812 15 18,5 0,3 JR12x15x18,5 0,00912 15 22,5 0,3 JR12x15x22,5 0,011

12 12 16 12 0,3 JR12x16x12 0,00812 16 12 0,3 JR12x16x12JS1 0,00812 16 13 0,3 JR12x16x13 0,00812 16 14 0,3 JRZ12x16x14JS1 0,0112 16 16 0,3 JR12x16x16 0,01112 16 20 0,3 JR12x16x20 0,01412 16 22 0,3 JR12x16x22 0,015

JR JR.JS1 JRZ.JS 1

Inner Rings

F

rs

d

B

F

rs

d

B

F

rs

d

B


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Shaft Dimensions Inner ring MassDesignation

d F B r smin

mm kg

14 14 17 17 0,3 JR14x17x17 0,009

15 18 16,5 0,3 JR15x18x16,5 0,0115 19 16 0,3 JR15x19x16 0,01315 19 20 0,3 JR15x19x20 0,01715 20 12 0,3 JR15x20x12 0,012

15 15 20 12 0,3 JR15x20x12JS1 0,01215 20 13 0,3 JR15x20x13 0,01415 20 14 0,3 JRZ15x20x14JS1 0,01515 20 16 0,3 JR15x20x16 0,01715 20 23 0,3 JR15x20x23 0,02515 20 26 0,3 JR15x20x26 0,028

17 20 16,5 0,3 JR17x20x16,5 0,01117 20 20 0,3 JR17x20x20 0,01417 20 20,5 0,3 JR17x20x20,5 0,01417 20 30,5 0,3 JR17x20x30,5 0,02117 21 16 0,3 JR17x21x16 0,01517 21 20 0,3 JR17x21x20 0,019

17 17 22 13 0,3 JR17x22x13 0,01517 22 16 0,3 JR17x22x16 0,01917 22 16 0,3 JR17x22x16JS1 0,01917 22 16 0,3 JRZ17x22x16JS1 0,01917 22 23 0,3 JR17x22x23 0,02817 22 26 0,3 JR17x22x26 0,03117 22 32 0,3 JR17x22x32 0,038

20 24 16 0,3 JR20x24x16 0,01820 24 20 0,3 JR20x24x20 0,02220 25 16 0,3 JR20x25x16 0,02220 25 16 0,3 JR20x25x16JS1 0,02220 25 17 0,3 JR20x25x17 0,023

20 20 25 18 0,3 JRZ20x25x18JS1 0,02520 25 20 0,3 JR20x25x20 0,02820 25 20,5 0,3 JR20x25x20,5 0,02920 25 26 0,3 JR20x25x26 0,03620 25 26,5 0,3 JR20x25x26,5 0,03720 25 30 0,3 JR20x25x30 0,04220 25 32 0,3 JR20x25x32 0,04420 25 38,5 0,3 JR20x25x38,5 0,054

JR JR.JS1 JRZ.JS 1

F

rs

d

B

F

rs

d

B

F

rs

d

B

Inner Rings


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Shaft Dimensions Inner ring Mass dia. designation

d F B r smin

mm kg

22 26 16 0,3 JR22x26x16 0,01922 26 20 0,3 JR22x26x20 0,023

22 22 28 17 0,3 JR22x28x17 0,0322 28 20,5 0,3 JR22x28x20,5 0,03822 28 30 0,3 JR22x28x30 0,056

25 29 20 0,3 JR25x29x20 0,02725 29 30 0,3 JR25x29x30 0,0425 30 16 0,3 JR25x30x16 0,02725 30 16 0,3 JR25x30x16JS1 0,02725 30 17 0,3 JR25x30x17 0,02825 30 18 0,3 JRZ25x30x18JS1 0,031

25 25 30 20 0,3 JR25x30x20 0,03425 30 20,5 0,3 JR25x30x20,5 0,03525 30 26 0,3 JR25x30x26 0,04425 30 26,5 0,3 JR25x30x26,5 0,04525 30 30 0,3 JR25x30x30 0,05125 30 32 0,3 JR25x30x32 0,05425 30 38,5 0,3 JR25x30x38,5 0,066

28 32 17 0,3 JR28x32x17 0,02828 28 32 20 0,3 JR28x32x20 0,03

28 32 30 0,3 JR28x32x30 0,044

30 35 16 0,3 JR30x35x16 0,03130 35 17 0,3 JR30x35x17 0,03330 35 18 0,3 JRZ30x35x18JS1 0,03630 35 20 0,3 JR30x35x20 0,039

30 30 35 20 0,3 JRZ30x35x20JS1 0,03930 35 20,5 0,3 JR30x35x20,5 0,0430 35 26 0,3 JR30x35x26 0,05430 35 30 0,3 JR30x35x30 0,05730 35 32 0,3 JR30x35x32 0,06230 38 20 0,6 JR30x38x20JS1 0,067

32 37 20 0,3 JR32x37x20 0,043

32 32 37 30 0,3 JR32x37x30 0,06432 40 20 0,6 JR32x40x20 0,06932 40 36 0,6 JR32x40x36 0,128

35 40 17 0,3 JR35x40x17 0,0435 40 20 0,3 JR35x40x20 0,04635 40 20,5 0,3 JR35x40x20,5 0,04935 40 22 0,3 JR35x40x22 0,05235 40 30 0,3 JR35x40x30 0,071

35 35 40 34 0,3 JR35x40x34 0,0835 40 40 0,3 JR35x40x40 0,09435 42 20 0,6 JR35x42x20 0,06535 42 20 0,6 JR35x42x20JS1 0,06535 42 23 0,6 JRZ35x42x23JS1 0,07435 42 36 0,6 JR35x42x36 0,12235 44 22 0,6 JR35x44x22 0,097


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d F B r smin

mm kg

38 38 43 20 0,3 JR38x43x20 0,0538 43 30 0,3 JR38x43x30 0,075

40 45 17 0,3 JR40x45x17 0,04440 45 20 0,3 JR40x45x20 0,05240 45 20,5 0,3 JR40x45x20,5 0,05440 45 30 0,3 JR40x45x30 0,078

40 40 45 34 0,3 JR40x45x34 0,08940 45 40 0,3 JR40x45x40 0,11540 48 22 0,6 JR40x48x22 0,09440 48 23 0,6 JRZ40x48x23JS1 0,140 48 40 0,6 JR40x48x40 0,17340 50 20 1 JR40x50x20 0,11

42 42 47 20 0,3 JR42x47x20 0,05542 47 30 0,3 JR42x47x30 0,083

45 50 20 0,3 JR45x50x20 0,05845 50 25 0,6 JR45x50x25 0,07345 50 25,5 0,3 JR45x50x25,5 0,07545 50 35 0,6 JR45x50x35 0,10345 50 40 0,3 JR45x50x40 0,11745 52 22 0.6 JR45x52x22 0,09

45 45 52 23 0,6 JR45x52x23 0,09645 52 23 0,6 JRZ45x52x23JS1 0,09645 52 40 0,6 JR45x52x40 0,16745 55 20 1 JR45x55x20 0,13345 55 20 1 JR45x55x20JS1 0,13345 55 22 1 JR45x55x22 0,13545 55 40 1 JR45x55x40 0,247

50 55 20 0,3 JR50x55x20 0,06550 55 25 0,6 JR50x55x25 0,08150 55 35 0,6 JR50x55x35 0,11350 55 40 0,3 JR50x55x40 0,1350 58 22 0,6 JR50x58x22 0,117

50 50 58 23 0,6 JRZ50x58x23JS1 0,12250 58 40 0,6 JR50x58x40 0,21350 60 20 1 JR50x60x20 0,15550 60 20 1 JR50x60x20JS1 0,15550 60 25 1 JR50x60x25 0,1750 60 40 1 JR50x60x40 0,31

JR JR.JS1 JRZ.JS 1

F

rs

d

B

F

rs

d

B

F

rs

d

B

Inner Rings


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3


d F B i rsmin

mm kg

55 60 25 0,6 JR55x60x25 0,08855 60 35 0,6 JR55x60x35 0,124

55 55 63 25 1 JR55x63x25 0,14155 63 45 1 JR55x63x45 0,28655 65 30 1 JR55x65x30 0,22255 65 60 1 JR55x65x60 0,444

60 68 25 0,6 JR60x68x25 0,15360 68 35 0,6 JR60x68x35 0,22

60 60 68 45 1 JR60x68x45 0,28460 70 25 1 JR60x70x25 0,260 70 30 1 JR60x70x30 0,2460 70 60 1 JR60x70x60 0,48

65 72 25 1 JR65x72x25 0,14365 72 45 1 JR65x72x45 0,26665 73 25 0,6 JR65x73x25 0,17

65 65 73 35 0,6 JR65x73x35 0,2465 75 28 1 JR65x75x28 0,2465 75 30 1 JR65x75x30 0,2665 75 60 1 JR65x75x60 0,52

70 80 25 1 JR70x80x25 0,2370 80 30 1 JR70x80x30 0,27

70 70 80 35 1 JR70x80x35 0,3270 80 54 1 JR70x80x54 0,570 80 60 1 JR70x80x60 0,556

75 85 25 1 JR75x85x25 0,24

75 75 85 30 1 JR75x85x30 0,28975 85 35 1 JR75x85x35 0,33875 85 54 1 JR75x85x54 0,53

80 90 25 1 JR80x90x25 0,26

80 80 90 30 1 JR80x90x30 0,30680 90 35 1 JR80x90x35 0,35580 90 54 1 JR80x90x54 0,565


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Shaft Dimensions Inner ring Massdia. designation

d F B i rsmin

mm kg

85 95 26 1 JR85x95x26 0,2985 95 30 1 JR85x95x30 0,334

85 85 95 36 1 JR85x95x36 0,39785 100 35 1,1 JR85x100x35 0,59585 100 63 1,1 JR85x100x63 1,08

90 100 26 1 JR90x100x26 0,390 100 30 1 JR90x100x30 0,35

90 90 100 36 1 JR90x100x36 0,42290 105 32 1,1 JR90x105x32 0,5890 105 35 1,1 JR90x105x35 0,62490 105 63 1,1 JR90x105x63 1,14

95 105 26 1 JR95x105x26 0,31

95 95 105 36 1 JR95x105x36 0,4395 110 35 1,1 JR95x110x35 0,65395 110 63 1,1 JR95x110x63 1,2

100 110 30 1,1 JR100x110x30 0,384100 100 110 40 1,1 JR100x110x40 0,51

100 115 40 1,1 JR100x115x40 0,79

110 110 120 30 1 JR110x120x30 0,425110 125 40 1,1 JR110x125x40 0,87

120 120 130 30 1 JR120x130x30 0,46120 135 45 1,1 JR120x135x45 1,06

130 130 145 35 1,1 JR130x145x35 0,89130 150 50 1,5 JR130x150x50 1,73

140 140 155 35 1,1 JR140x155x35 0,955140 160 50 1,5 JR140x160x50 1,86

150 150 165 40 1,1 JR150x165x40 1,17

160 160 175 40 1,1 JR160x175x40 1,24

170 170 185 45 1,1 JR170x185x45 1,48

180 180 195 45 1,1 JR180x195x45 1,56

JR

F

rs

d

B

Inner Rings


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Dimensions End Washer Designation Massds Ds S

mm g

10,5 17 0,5 SNSH10,5x17x0,5 0,610,5 20 0,5 SNSH10,5x20x0,5 0,9

12,5 19 0,5 SNSH12,5x19x0,5 0,612,5 22 0,5 SNSH12,5x22x0,5 1

14,5 22 0,5 SNSH14,5x22x0,5 0,814,5 26 0,5 SNSH14,5x26x0,5 1,4

15,5 23 0,5 SNSH15,5x23x0,5 0,9

16,5 24 0,5 SNSH16,5x24x0,5 0,916,5 28 0,5 SNSH16,5x28x0,5 1,6

17,5 25 0,5 SNSH17,5x25x0,5 1

18,5 26 0,5 SNSH18,5x26x0,5 118,5 30 0,5 SNSH18,5x30x0,5 1,7

20,5 28 0,5 SNSH20,5x28x0,5 1,120,5 32 0,5 SNSH20,5x32x0,5 1,9

22,5 30 0,5 SNSH22,5x30x0,5 1,222,5 35 0,5 SNSH22,5x35x0,5 2,2

25,5 35 0,5 SNSH25,5x35x0,5 1,825,5 37 0,5 SNSH25,5x37x0,5 2,2

28,5 40 0,5 SNSH28,5x40x0,5 2,4

30,5 40 0,5 SNSH30,5x40x0,5 2,130,5 42 0,5 SNSH30,5x42x0,5 2,5

35,5 45 0,5 SNSH35,5x45x0,5 2,335,5 47 0,5 SNSH35,5x47x0,5 2,9

40,5 50 0,5 SNSH40,5x50x0,5 2,7

41 55 1 SNSH41x55x1 8

45,5 55 0,5 SNSH45,5x55x0,5 3,3

46 62 1 SNSH46x62x1 11

51 65 1 SNSH51x65x1 10

56 72 1 SNSH56x72x1 13

61 78 1 SNSH61x78x1 15

66 85 1 SNSH66x85x1 18

Torrington End Washers

Ds ds

S

SNSH


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Catalog Rulmenti

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Transcript of Catalog Rulmenti