Inner Rings for Shell Type Needle Roller Bearings Inner ...

H1

●Inner Rings for Shell Type Needle Roller Bearings

●Inner Rings for General Usage

https://rodavigo.net/es/c/rodamientos/f/iko

Polígono Industrial O Rebullón s/n. 36416 - Mos - España - [email protected]

Servicio de Att. al Cliente+34 986 288118

H

H2

IKO Inner Rings are heat-treated and finished by grinding to a high degree of accuracy. In the case of needle roller bearings, normally, the shafts are heat-treated and finished by grinding, and used as the raceway surfaces. However, when it is impossible to make shaft surfaces according to the specified sur-face hardness or surface roughness, inner rings are used.Inner rings include those for Shell Type Needle Roller Bearings and those for general use and are available in a variety of dimensions. When shafts move axially or seals are used adjacent to bearings, wide inner rings can be selected.Inner rings can also be used economically as bush-ings without requiring any additional machining.

■Structure and Features

Gentle taper relief

Small chamfer

Gentle taper relief

Small chamfer

Shapes of Inner Rings

■ TypesFor Inner Rings, the types shown in Table 1 are avail-able.

Table 1.1 Inner Rings for Shell Type Needle Roller Bearings

Series Model codes of assembled bearings

Metric series

Inch series

IRT

IRB

TA … Z，TLA … ZTAM，TLAM，YT，YTLBA … Z，BHA … ZBAM，BHAM，YB，YBH

Remark　 For Inner Rings for Shell Type Needle Roller Bearings with Seal, please consult IKO.

Table 1.2 Inner Rings for General Usage

Series Model codes of assembled bearings

Metric series

Inch series

LRT

LRTZ

LRB

LRBZ … B

RNA 49，RNA 69RNA 48，TAF，TRRNAF，NAX，NBXRNA 49 … UU，RNA 69 … UUGTRBR

BR … UU




H3

■ Identification numberThe identification number of Inner Rings consists of a model code and dimensions. An example is shown below.

Model code Dimensions

LRT 20 2024

Example of identification number

Type of inner ring

Inner ring width（20mm）

Outside diameter of inner ring（24mm）

Bore diameter of inner ring（20mm）

■AccuracyDimensional accuracy of Inner Rings is based on Table 2. Inner Rings for Shell Type Needle Roller Bearings are manufactured so that exact radial internal clearances can be obtained when assembled with Shell Type Needle Roller Bearings. Inner Rings for General Usage produce CN clearance when used in the assembled bearings shown in Table 1.2. LRB and LRBZ … B models produce the radial internal clear-ances shown in Table 4 on page D5. When clearances other than CN clearance or accura-cy other than Class 0 are required, please consult IKO.

Table 6 Tolerances of outside diameters for LRT and LRTZ (When the clearance is CN clearance)

dBore diameter of inner ring mm

FOutside diameter of inner ring　mm

3＜ F ≦ 6 6＜ F ≦ 10 10＜ F ≦ 18 18＜ F ≦ 30 30＜ F ≦ 50 50＜ F ≦ 80

Over Incl. High Low High Low High Low High Low High Low High Low－243040506580

100120140160180200225250280315355400450

243040506580

100120140160180200225250280315355400450500

－ 10 － 27 － 7 － 23 － 4 － 18＋ 5

0－ 4－ 9－ 19－ 5

00

－ 12－ 12

－ 11－ 21－ 26

0－ 10－ 10

Table 2 Tolerances for inner ring

Model code Tolerance

IRTLRT，LRTZ

IRBLRBLRBZ … B

JIS Class 0(See the table 12, page A31)

Based on Table 3

Based on Table 4

Remark Tolerances of outside diameter of inner ring are　　　　based on Table 5.

ΔdmpSingle plane

mean bore

diameter deviation

ΔBsDeviation of a

single inner ring

width

KiaRadial runout of

assembled

bearing inner ring

High Low High Low Max.

00000

000

1010131520

00

－ 250－ 250－ 250－ 250－ 250

－ 13－ 13－ 13－ 13－ 13

dNominal inside diameter

of inner ring

mmOver Incl.

2.510183050

1018305080

Table 3 Tolerances of IRB

dNominal inside diameter

of inner ringmm

Over Incl.

－19.05030.16250.80082.550

19.050 30.162 50.800 82.550120.650

ΔdmpSingle plane

mean bore

diameter deviation

ΔBsDeviation of a

single inner ring

width

High Low High Low

KiaRadial runout of

assembled

bearing inner ring

Max.

00000

000

1013152025

00

－ 130－ 130－ 130－ 130－ 130

－ 10－ 13－ 13－ 15－ 20

Table 4 Tolerances of LRB,LRBZ…B

unit: μ m

unit: μ m




H

H41N=0.102kgf=0.2248lbs.1mm=0.03937inch

■FitThe recommended fits between Inner Rings and shafts are shown in Table 22 on page A42.

■Oil Hole The number of oil holes is shown in Table 8.When Inner Rings with an oil hole are especially required for a model without an oil hole, attach an "OH" to the end of the identification number when ordering.Example: LRT 202420 OH For Inner Rings with multiple oil holes, please consult IKO.

Table 5 Tolerances of outside diameter of inner ring

Model code Tolerance

IRT

IRB

LRT，LRTZ

LRB，LRBZ … B

g5

0～－ 13

Based on Table 6

Based on Table 7

unit: μ m

Table 7 Tolerances of outside diameters of LRB and LRBZ … BNominal outside diameter

of inner ringmm

Over Incl.

Tolerance

High Low

－18.03425.908

30.22635.05250.038

80.010100.076

18.03425.90830.226

35.05250.03880.010

100.076102.108

－ 13－ 18－ 23

－ 23－ 25－ 28

－ 32－ 37

－ 23－ 30－ 36

－ 38－ 41－ 46

－ 56－ 66

unit: μ m

Table 8 Number of oil holes

　　　 Bearing typeNumber

of oil holes

For Shell Type Needle Roller Bearings

For General Usage

Metric series

Inch series

Metric series

Inch series

IRT

IRB

LRT

LRTZ

LRB d≦ 76.200

76.200＜d LRBZ … B

0

0

0

0

1

2

1

Bore diameter of inner ring d mm

Remark　 Inner rings with an oil hole are provided with an oil groove.

FOutside diameter of inner ring　mm

80＜ F ≦ 120 120＜ F ≦ 180 180＜ F ≦ 250 250＜ F ≦ 315 315＜ F ≦ 400 400＜ F ≦ 500

High Low High Low High Low High Low High Low High Low

dBore diameter ofinner ring mm

Over Incl.－243040506580

100120140160180200225250280315355400450

243040506580

100120140160180200225250280315355400450500

unit: μ m

－ 107－ 127－ 182

－ 68－ 83－ 128

－ 87－ 107

－ 54－ 69

－ 46－ 66

－ 25－ 40

－ 22－ 37

－ 7－ 17

－ 14－ 14

－ 4－ 27－ 32

－ 17

－ 55 － 86

－ 142－ 152

－ 122－ 202－ 222

－ 172

－ 52－ 27




H5

Shaft dia. 7－ 17mm

Inner Rings for Shell Type Needle Roller Bearings

Note(1)　 Minimum allowable value of chamfer dimension rRemark　No oil hole is provided.

Shaft dia.

mm

Mass (Ref.)

Identification number

g d F B rs min Min. Max.TA … Z(TAM)

TLA … Z(TLAM)

YTYTL

7

8

10

12

15

IRT 710IRT 712IRT 715

IRT 810IRT 812IRT 815

IRT 1012IRT 1012-2IRT 1016-2IRT 1020-2IRT 1010-1IRT 1012-1IRT 1015-1IRT 1020-1IRT 1025-1

IRT 1212IRT 1216IRT 1222IRT 1212-1IRT 1216-1IRT 1220-1IRT 1222-1IRT 1215-2IRT 1220-2IRT 1225-2

IRT 1512IRT 1513

3.2 3.9 4.8

777

888

101010101010101010

12121212121212121212

1515

101010

121212

131414141515151515

15151516161616171717

1818

10.512.515.5

10.512.515.5

12.512.516.520.510.512.515.520.525.5

12.516.522.512.516.520.522.515.520.525.5

12.513.5

0.30.30.3

9 9 9

9.7 9.7 9.7

11 11 11

12.7 13 13 13 14 14 14 14 14

14.5 14.5 14.5 15 15 15 15 16 16 16

17.5 17.5

101010

121212121212121212

14141414141414141414

1717

0.30.30.3

0.30.30.30.30.30.30.30.30.3

0.30.30.30.30.30.30.30.30.30.3

0.30.3

5.1 6 7.5

5.2 7.2 9.611.9 7.9 9.411.715.519.3

6.1 8.111 8.511.213.915.213.61822.5

7.5 8.1

TA 1010ZTA 1012ZTA 1015Z

─TA 1212ZTA 1215Z

──

TA 1416ZTA 1420ZTA 1510ZTA 1512ZTA 1515ZTA 1520ZTA 1525Z

TA 1512Z───

TA 1616ZTA 1620Z─

TA 1715ZTA 1720ZTA 1725Z

─TA 1813Z

TLA 1010ZTLA 1012ZTLA 1015Z

TLA 1210ZTLA 1212Z

─

TLA 1312ZTLA 1412ZTLA 1416Z

──

TLA 1512Z───

TLA 1512ZTLA 1516ZTLA 1522ZTLA 1612ZTLA 1616Z

─TLA 1622Z

───

TLA 1812Z─

───

YTL 1210YT 1212─

─────────

───────

YT 1715─

YT 1725

──

(1)

Boundary dimensions mm

Standard mounting dimension mm

Assembled bearings

d a

INNER RINGS




H

H61N=0.102kgf=0.2248lbs.1mm=0.03937inch


Shaft dia.

mm

Mass (Ref.)



TLA … Z(TLAM)

YTYTL

15

17

IRT 1515IRT 1516IRT 1517IRT 1519IRT 1520IRT 1525IRT 1516-1IRT 1520-1IRT 1515-2IRT 1520-2

IRT 1525-2IRT 1530-2

IRT 1716IRT 1720

IRT 1730IRT 1716-1IRT 1720-1IRT 1710-2IRT 1715-2IRT 1716-2IRT 1720-2

IRT 1725-2IRT 1730-2

9.3 9.910.511.712.315.213.616.816.421.5

2732

11.113.7

20.515.118.812.418.319.424

3036

15151515151515151515

1515

1717

17171717171717

1717

18181818181819192020

2020

2020

20212122222222

2222

15.516.517.519.520.525.516.520.515.520.5

25.530.5

16.520.5

30.516.520.510.515.516.520.5

25.530.5

0.30.30.30.30.30.30.30.30.30.3

0.30.3

17171717171717171717

1717

17.517.517.517.517.517.518181919

1919

19.519.5

19.5202021212121

2121

1919

19191919191919

1919

0.30.3

0.30.30.30.30.30.30.3

0.30.3

TA 1815Z─

TA 1817ZTA 1819ZTA 1820ZTA 1825ZTA 1916ZTA 1920ZTA 2015ZTA 2020ZTA 202820ZTA 2025ZTA 2030Z

─TA 2020ZTA 202820ZTA 2030ZTA 2116ZTA 2120ZTA 2210ZTA 2215ZTA 223016ZTA 2220ZTA 223020ZTA 2225ZTA 2230Z

─TLA 1816Z

───────

TLA 2020Z

─TLA 2030Z

TLA 2016ZTLA 2020Z

TLA 2030Z────

TLA 2216ZTLA 2220Z

──

────────

YT 2015 YT 202820

YT 2025─

─ YT 202820

─ YT 2116 YT 2120

──

YT 223016 YT 223020

──

(1)

Boundary dimensionsmm


Assembled bearings

d a

IRT

F d

B

r

r

d a




H7




Shaft dia.

mm

Mass (Ref.)



TLA … Z(TLAM)

YTYTL

20

22

25

28

30

IRT 2016IRT 2020

IRT 2028IRT 2010-1IRT 2015-1IRT 2020-1IRT 2025-1IRT 2026-1IRT 2030-1IRT 2038-1

IRT 2216IRT 2220IRT 2220-1IRT 2230-1

IRT 2520IRT 2530IRT 2515-1IRT 2520-1IRT 2525-1IRT 2526-1IRT 2530-1IRT 2538-1

IRT 2820IRT 2830

IRT 3012IRT 3015

17.522

30.514.3212834.53641.552.5

19.1243755.5

26.54025.53442.54450.564

29.544

24.530.5

TA 243216ZTA 2420ZTA 243220ZTA 2428ZTA 2510ZTA 2515ZTA 2520ZTA 2525Z

─TA 2530Z

─

TA 2616ZTA 2620ZTA 2820ZTA 2830Z

TA 2920ZTA 2930ZTA 3015ZTA 3020ZTA 3025Z

─TA 3030Z

─

TA 3220ZTA 3230Z

TA 3512ZTA 3515Z

──

───

TLA 2520Z─

TLA 2526Z─

TLAW 2538Z

──

TLA 2820Z─

───

TLA 3020Z─

TLA 3026Z─

TLAW 3038Z

──

TLA 3512Z─

YT 243216YT 243220

YT 2428YT 2510YT 2515YT 2520YT 2525YTL 2526

──

YT 2616YT 2620YT 2820

─

YT 2920───────

YT 3220─

──

(1)



Assembled bearings

d a

2020

2020202020202020

22222222

2525252525252525

2828

3030

2424

2425252525252525

16.520.5

28.510.515.520.525.526.530.538.5

26262828

2929303030303030

3232

3535

16.520.520.530.5

20.530.515.520.525.526.530.538.5

20.530.5

12.515.5

0.30.3

0.30.30.30.30.30.30.30.3

0.30.30.30.3

0.30.30.30.30.30.30.30.3

0.30.3

0.60.6

2222

2222222222222222

24242424

2727272727272727

3030

3434

23 23

23 24 24 24 24 24 24 24

25 25 27 27

28 28 29 29 29 29 29 29

31 31

34.5 34.5

INNER RINGS




H

H81N=0.102kgf=0.2248lbs.1mm=0.03937inch


Shaft dia.

mm

Mass (Ref.)



TLA … Z(TLAM)

YTYTL

30

32

35

40

45

IRT 3020IRT 3025IRT 3030

IRT 3220IRT 3230IRT 3215-1IRT 3220-1IRT 3225-1IRT 3230-1IRT 3245-1

IRT 3515IRT 3520IRT 3525IRT 3530IRT 3540

IRT 4020IRT 4025IRT 4030IRT 4040

IRT 4512IRT 4515IRT 4520IRT 4525IRT 4530IRT 4540IRT 4545

40 50 60

20.525.530.5

20.530.515.520.525.530.545.5

15.520.525.530.540.5

20.525.530.540.5

12.515.520.525.530.540.545.5

0.60.60.6

343434

34.5 34.5 34.5

36.5 36.5 37 37 37 37 37

39.5 39.5 39.5 39.5 39.5

45.5 45.5 45.5 45.5

49.5 49.5 49.5 49.5 49.5 49.5 49.5

36363636363636

3939393939

44444444

49494949494949

0.60.60.60.60.60.60.6

0.60.60.60.60.6

0.60.60.60.6

0.60.60.60.60.60.60.6

42.5 63.5 39.5 52 64.5 77.5 115

35 46.5 58 69 91.5

52.5 65.5 78.5 104

36 44.5 59 73 87.5 116 131

TA 3520ZTA 3525ZTA 3530Z

TA 3720ZTA 3730ZTA 3815ZTA 3820ZTA 3825ZTA 3830ZTAW 3845Z

TA 4015ZTA 4020ZTA 4025ZTA 4030ZTA 4040Z

TA 4520ZTA 4525ZTA 4530ZTA 4540Z

TA 5012ZTA 5015ZTA 5020ZTA 5025ZTA 5030ZTA 5040ZTAW 5045Z

TLA 3520Z──

───────

─TLA 4020Z

───

TLA 4520Z───

──

TLA 5020ZTLA 5025Z

───

───

YT 3720──────

YT 4015─

YT 4025──

YT 4520YT 4525──

───────

(1)



Assembled bearings

d a

303030

32323232323232

3535353535

40404040

45454545454545

353535

37373838383838

4040404040

45454545

50505050505050

IRT

F d

B

r

r

d a




H9

5050505050505050505050

5555555555556060606060

20.525.530.540.545.550.525.530.540.545.550.5

0.60.60.60.60.60.61.51.51.51.51.5

5454545454545858585858

54.5 54.5 54.5 54.5 54.5 54.5 59 59 59 59 59

52 62 12.5 1.5 60 60.5

55555555

65656565

25.530.545.550.5

1.51.51.51.5

63636363

63.5 63.5 63.5 63.5

60606060

70707070

25.530.540.550.5

1.51.51.51.5

68686868

68.5 68.5 68.5 68.5




Shaft dia.

mm

Mass (Ref.)


gd F B rs min Min. Max.

TA … Z(TAM)

TLA … Z(TLAM)

YTYTL

50

52

55

60

IRT 5020-1IRT 5025-1IRT 5030-1IRT 5040-1IRT 5045-1IRT 5050-1IRT 5025IRT 5030IRT 5040IRT 5045IRT 5050

IRT 5212

IRT 5525IRT 5530IRT 5545IRT 5550

IRT 6025IRT 6030IRT 6040IRT 6050

65 81 96.5 128 144 160 169 205 270 300 335

86

185 220 330 365

200 240 320 395

TA 5520ZTA 5525ZTA 5530ZTA 5540ZTAW 5545ZTAW 5550ZTA 6025ZTA 6030ZTA 6040ZTAW 6045ZTAW 6050Z

TA 6212Z

TA 6525ZTA 6530ZTAW 6545ZTAW 6550Z

TA 7025ZTA 7030ZTA 7040ZTAW 7050Z

TLA 5520ZTLA 5525Z

─────────

─

───────────

─

────

────

────

────

(1)



Assembled bearings

d a

IRT

INNER RINGS

F d

B

r

r

d a




H

H101N=0.102kgf=0.2248lbs.1mm=0.03937inch

Note(1)　 Maximum allowable fillet corner radius of shaft Remark　No oil hole is provided.

Shaft dia.

mm(inch)

Mass (Ref.)


g d F B Min. Max. Max. BA … Z(BAM)

BHA … Z(BHAM)

YBYBH

Boundary dimensionsmm(inch)

Standard mounting dimensions mm

Assembled bearings

d a ras max

Shaft dia. 7.938－ 15.875mm


7.938（ 5╱16） IRB 58 BA 88Z BHA 88Z YB 88

YB 98YB 108YBH 108YB 912YB 1012YB 108YBH 108YB 1012────

YB 1112YB 128YB 1210YB 1212──

YB 138YBH 1310YBH 1312────

YB 148YB 1412

8 11.313.08 11.7 0.3 7.938（ 5 ╱16） 12.700（ 1╱ 2）

9.525（ 3╱8）

11.112（ 7╱16）

12.700（ 1╱2）

14.288（ 9╱16）

15.875（ 5╱8）

IRB 68IRB 68-1

IRB 612IRB 612-1IRB 78

IRB 712IRB 714IRB 716IRB 86IRB 88IRB 812IRB 88-1IRB 810-1IRB 812-1IRB 814-1IRB 816-1

IRB 98IRB 910IRB 912IRB 914IRB 916IRB 920

IRB 106IRB 108IRB 1012

BA 98ZBA 108Z

BA 912ZBA 1012ZBA 108Z

BA 1012ZBA 1014ZBA 1016Z

BA 116ZBA 118ZBA 1112ZBA 128ZBA 1210ZBA 1212ZBA 1214ZBA 1216Z

BA 138ZBA 1310ZBA 1312ZBA 1314ZBA 1316ZBA 1320Z

BA 146ZBA 148ZBA 1412Z

BHA 98ZBHA 108Z

─BHA 1012ZBHA 108Z

BHA 1012Z─

BHA 1016Z─

BHA 118ZBHA 1112Z──

BHA 1212Z──

BHA 138ZBHA 1310ZBHA 1312Z─────

BHA 1412Z

8.912.6

13.218.810.1

1517.419.9

8.511.216.715.819.623.527.531

17.321.5263034.543

14.518.928

12.812.8

12.812.814.4

14.414.414.4

16.916.916.916.916.916.916.916.9

191919191919

20.720.720.7

13.0813.08

19.4319.4313.08

19.4322.6025.78

9.9013.0819.4313.0816.2519.4322.6025.78

13.0816.2519.4322.6025.7832.13

9.90 13.0819.43

13.214

13.21414.8

14.814.814.8

16.916.916.917.517.517.517.517.5

19.619.619.619.619.619.6

21.221.221.2

0.30.3

0.30.30.3

0.30.30.3

0.30.30.30.60.60.60.60.6

0.60.60.60.60.60.6

0.60.60.6

9.525（ 3╱ 8） 9.525（ 3╱ 8）

9.525（ 3 ╱ 8） 9.525（ 3 ╱ 8）11.112（ 7 ╱16）

11.112（ 7 ╱16）11.112（ 7╱16）11.112（ 7 ╱16）12.700（ 1 ╱ 2）12.700（ 1 ╱ 2）12.700（ 1 ╱ 2）12.700（ 1 ╱ 2）12.700（ 1 ╱ 2）12.700（ 1 ╱ 2）12.700（ 1 ╱ 2）12.700（ 1 ╱ 2）14.288（ 9╱16）14.288（ 9╱16）14.288（ 9 ╱16）14.288（ 9╱16）14.288（ 9╱16）14.288（ 9 ╱16）15.875（ 5 ╱ 8）15.875（ 5 ╱ 8）15.875（ 5 ╱ 8）

22.225（ 7 ╱ 8）22.225（ 7 ╱ 8）22.225（ 7 ╱ 8）

20.638（13╱16）20.638（13╱16）20.638（13╱16）20.638（13╱16）20.638（13╱16）20.638（13╱16）

14.288（ 9╱16）15.875（ 5 ╱ 8）

14.288（ 9╱16）15.875（ 5 ╱ 8）15.875（ 5 ╱ 8）

15.875（ 5 ╱ 8）15.875（ 5 ╱ 8）15.875（ 5 ╱ 8）17.462（11╱16）17.462（11╱16）17.462（11╱16）19.050（ 3 ╱ 4）19.050（ 3 ╱ 4）19.050（ 3 ╱ 4）19.050（ 3 ╱ 4）19.050（ 3 ╱ 4）

(1)

Inch Series

IRB

dF

B

da

ra




H11

Shaft dia. 15.875－63.500mm



Shaft dia.

mm(inch)

Mass (Ref.)


g d F B Min. Max. Max.BA … Z(BAM)

BHA … Z(BHAM)

YBYBH



Assembled bearings

d a ras max

─YB 1416─

──

YB 168YBH 168YB 1612YBH 1612─

YB 1616YBH 1616─

YB 1616YBH 1616

YB 188YB 1812YB 1816─

15.875（ 5╱8）17.462（ 11╱16）

19.050（ 3╱4）

20.638（ 13╱16）

22.225（ 7╱8）

IRB 1014IRB 1016IRB 1022

IRB 1110IRB 1116

IRB 128

IRB 1212

IRB 1214IRB 1216

IRB 1220

IRB 1316

IRB 148IRB 1412IRB 1416IRB 1420

BA 1414ZBA 1416ZBA 1422Z

BA 1510ZBA 1516Z

BA 168Z

BA 1612Z

BA 1614ZBA 1616Z

BA 1620Z

BA 1616Z

BA 188ZBA 1812ZBA 1816ZBA 1820Z

─BHA 1416Z─

──

BHA 168Z

BHA 1612Z

BHA 1614ZBHA 1616Z

BHA 1620Z

BHA 1616Z

─BHA 1812ZBHA 1816ZBHA 1820Z

3337.551.5

25.540.5

22

33

38.543.5

54.5

34

2537.55062.5

20.720.720.7

22.322.3

23.9

23.9

23.923.9

23.9

24.9

27272727

22.6025.7835.30

16.2525.78

13.08

19.43

22.6025.78

32.13

25.78

13.0819.4325.7832.13

21.221.221.2

22.822.8

24.4

24.4

24.424.4

24.4

24.9

27.527.527.527.5

0.60.60.6

0.60.6

0.6

0.6

0.60.6

0.6

0.6

0.60.60.60.6

15.875（ 5╱ 8）15.875（ 5╱ 8）15.875（ 5╱ 8）17.462（ 11╱16）17.462（ 11╱16）

19.050（ 3╱ 4）

19.050（ 3╱ 4）

19.050（ 3╱ 4）19.050（ 3╱ 4）

19.050（ 3╱ 4）

20.638（ 13╱16）

22.225（ 7╱ 8）22.225（ 7╱ 8）22.225（ 7╱ 8）22.225（ 7╱ 8）

25.400（1 ）

28.575（1 1╱ 8）28.575（1 1╱ 8）28.575（1 1╱ 8）28.575（1 1╱ 8）

22.225（ 7╱ 8）22.225（ 7╱ 8）22.225（ 7╱ 8）23.812（ 15╱16）23.812（ 15╱16）25.400（1 ）

25.400（1 ）

25.400（1 ）25.400（1 ）

25.400（1 ）

(1)

─YB 2010YB 2012YB 2016────

25.400（1）

IRB 168IRB 1610IRB 1612IRB 1616IRB 1620IRB 168-1IRB 1610-1IRB 1612-1

BA 208ZBA 2010ZBA 2012ZBA 2016ZBA 2020ZBA 218ZBA 2110ZBA 2112Z

BHA 208Z─

BHA 2012ZBHA 2016ZBHA 2020Z───

28.535.542.5567036.545.554.5

3030303030303030

13.0816.2519.4325.7832.1313.0816.2519.43

30.730.730.730.730.732.132.132.1

0.60.60.60.60.60.60.60.6

25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）25.400（1 ）

31.750（1 1╱ 4）31.750（1 1╱ 4）31.750（1 1╱ 4）31.750（1 1╱ 4）31.750（1 1╱ 4）33.338（1 5╱16）33.338（1 5╱16）33.338（1 5╱16）

Inch Series

INNER RINGS




H

H121N=0.102kgf=0.2248lbs.1mm=0.03937inch

IRB


Shaft dia.

mm(inch)

Mass (Ref.)


g d F B Min. Max. Max. BA … Z(BAM)

BHA … Z(BHAM)

YBYBH



Assembled bearings

d a ras max

YB 228YB 2212─

YB 2220

─YB 2414YB 2416YB 2420

YB 2610─

28.575（1 1╱8）

31.750（1 1╱4）

34.925（1 3╱8）

IRB 188IRB 1812IRB 1816IRB 1820

IRB 2010IRB 2014IRB 2016IRB 2020

IRB 2210IRB 2220

BA 228ZBA 2212ZBA 2216ZBA 2220Z

BA 2410ZBA 2414ZBA 2416ZBA 2420Z

BA 2610ZBA 2620Z

BHA 228ZBHA 2212ZBHA 2216ZBHA 2220Z

──────

31.5 47 62.5 78

43 60 68.5 85.5

47 93.5

33.233.233.233.2

37373737

40.240.2

13.0819.4325.7832.13

16.2522.6025.7832.13

16.2532.13

33.933.933.933.9

37.137.137.137.1

40.240.2

0.60.60.60.6

0.60.60.60.6

0.60.6

28.575（1 1╱ 8）28.575（1 1╱ 8）28.575（1 1╱ 8）28.575（1 1╱ 8）31.750（1 1╱ 4）31.750（1 1╱ 4）31.750（1 1╱ 4）31.750（1 1╱ 4）34.925（1 3╱ 8）34.925（1 3╱ 8）

─

─YB 2816───

36.512（1 7╱16）IRB 2316 BA 2816Z ─ 99 42.525.78 43.2 0.636.512（1 7╱16）

38.100（1 1╱2）

IRB 2412IRB 2416IRB 2424IRB 248-1IRB 2410-1

BA 2812ZBA 2816ZBA 2824ZBA 308ZBA 3010Z

──

BHA 2824Z──

62 81 121 64 79.5

43.343.343.344.544.5

19.4325.7838.4813.0816.25

43.443.443.445.545.5

0.60.60.611

38.100（1 1╱ 2）38.100（1 1╱ 2）38.100（1 1╱ 2）38.100（1 1╱ 2）38.100（1 1╱ 2）

41.275（1 5╱ 8）41.275（1 5╱ 8）

44.450（1 3╱ 4）

44.450（1 3╱ 4）44.450（1 3╱ 4）44.450（1 3╱ 4）47.625（1 7╱ 8）47.625（1 7╱ 8）

34.925（1 3╱ 8）34.925（1 3╱ 8）34.925（1 3╱ 8）34.925（1 3╱ 8）38.100（1 1╱ 2）38.100（1 1╱ 2）38.100（1 1╱ 2）38.100（1 1╱ 2）

(1)

41.275（1 5╱8）

IRB 2616IRB 2628

BA 3216ZBAW 3228Z

──

──

136235

47.547.5

25.7844.83

48.548.5

11

41.275（1 5╱ 8）41.275（1 5╱ 8）

50.800（2 ）50.800（2 ）

42.862（111╱16） IRB 2720 BA 3220Z

──

──146 48.532.13 49.5 0.642.862（1 11╱16）50.800（2 ）

47.625（1 7╱8）

IRB 3016IRB 3024

BA 3416ZBA 3424Z

──

──

100149

52.952.9

25.7838.48

52.952.9

0.60.6

47.625（1 7╱ 8）47.625（1 7╱ 8）

53.975（2 1╱ 8）53.975（2 1╱ 8）

57.150（21╱4） IRB 3616 BA 4216Z

──

──183 63.525.78 64.5 157.150（2 1╱ 4）66.675（2 5╱ 8）

63.500（21╱2）

IRB 4016IRB 4020

BA 4416ZBA 4420Z

──

──

131164

68.768.7

25.7832.13

68.868.8

0.60.6

63.500（2 1╱ 2）63.500（2 1╱ 2）

69.850（2 3╱ 4）69.850（2 3╱ 4）

dF

B

da

ra




H13


Shaft dia.

mm

Mass (Ref.)


g d F B rs min Min. Max.

5

6

7

8

9

10

12

LRT 5710LRT 5812LRT 5816

LRT 6810LRT 6912LRT 6916LRT 61010

LRT 7910LRT 71012LRT 71012-1LRT 71016

LRT 81011

LRT 91211LRT 91212LRT 91216

LRT 101412LRT 101413

─LRT 101416LRT 101420

LRT 121516LRT 121612LRT 121613

─LRT 121616LRT 121620

───

────

────

─

───

──

LRTZ 101414──

───

LRTZ 121614──

1.4 2.8 3.8

1.7 3.2 4.3 3.9

1.9 3.6 3.6 4.9

2.4

3.1 4.5

6

7 7.5 8.2

911.5

8 8.5 8.5 9.610.513.5

5 5 5

6 6 6 6

7 7 7 7

8

9 9 9

1010101010

121212121212

7 8 8

8 9 910

9101010

10

121212

1414141414

151616161616

10 12 16

10 12 16 10

10 12 12 16

11

11 12 16

12 13 14 16 20

16.5 12 13 14 16 20

0.150.20.2

6.2 6.6 6.6

6.7 7.7 7.7

RNA 495TAF 81512TAF 81516

0.150.20.20.3

7.2 7.6 7.6 8

7.7 8.7 8.7 9.7

RNA 496TAF 91612TAF 91616RNAF 101710

0.150.20.30.2

8.2 8.6 9 8.6

8.7 9.7 9.7 9.7

RNA 497TAF 101712RNAF 102012TAF 101716 NAX 1023

0.2 9.6 9.9 RNA 498

0.30.30.3

111111

11.511.511.5

RNA 499TAF 121912 RNAF 122212TAF 121916 NAX 1223

0.30.30.30.30.3

1212121212

1313131313

RNAF 142612RNA 4900 RNAF 142213RNA 4900 UUTAF 142216TAF 142220 RNAFW142220

0.30.30.30.30.30.3

141414141414

14.51515151515

NAX 1523 NBX 1523RNAF 162812RNA 4901 RNAF 162413RNA 4901 UUTAF 162416TAF 162420 RNAFW162420

(1)



Assembled bearings

d a


Inner Rings for General Usage

INNER RINGS




H

H141N=0.102kgf=0.2248lbs.1mm=0.03937inch

LRT LRTZ


Shaft dia.

mm

Mass (Ref.)



12

14

15

17

20

LRT 121622─

LRT 141717

LRT 151916LRT 151920LRT 152012LRT 152013

─LRT 152020

─LRT 152023

─LRT 152026

LRT 172020LRT 172116LRT 172120LRT 172213

─LRT 172216LRT 172223

─LRT 172225

─LRT 172226LRT 172232

LRT 202416LRT 202420

─LRTZ 121623

─

────

LRTZ 152014─

LRTZ 152020─

LRTZ 152024─

────

LRTZ 172214──

LRTZ 172224─

LRTZ 172225──

──

14.5 15.5

9.5

12.5 16 12 13.5 14.5 21.5 21.5 24 25 28

13.5 14.5 18 15.5 16.5 19 26.5 28 30 30 31 38

16.5 20.5

1212

14

15151515151515151515

171717171717171717171717

2020

1616

17

19192020202020202020

202121222222222222222222

2424

22 23

17

16 20 12 13 14 20.5 20.5 23 24 26

20.5 16 20 13 14 16 23 24 25.5 25.5 26 32

16 20

0.30.3

1414

15 15

RNA 6901RNA 6901 UU

0.3 16 16.5 NAX 1725 NBX 1725

0.30.30.30.30.30.30.30.30.30.3

17171717171717171717

18 18 19 19 19 19 19 19 19 19

TAF 192716TAF 192720RNAF 203212RNA 4902 RNAF 202813RNA 4902 UUTR 203320GTR 203320RNA 6902RNA 6902 UURNAFW 202826

0.30.30.30.30.30.30.30.30.30.30.30.3

191919191919191919191919

19.5 20 20 21 21 21 21 21 21 21 21 21

NAX 2030 NBX 2030TAF 212916TAF 212920RNA 4903 RNAF 223013RNA 4903 UURNAF 223516RNA 6903RNA 6903 UUTR 223425GTR 223425RNAFW 223026RNAFW 223532

0.30.3

2222

23 23

TAF 243216TAF 243220

(1)



Assembled bearings

d a

F d

B

r

r

dF

B

r

r

d a




H15


Shaft dia.

mm

Mass (Ref.)



20

22

25

LRT 202516LRT 202517

─LRT 202520

─LRT 202525

─LRT 202526LRT 202530

─LRT 202532

LRT 222616LRT 222620LRT 222817

─LRT 222830

─

LRT 252920LRT 252930LRT 253016LRT 253017

─LRT 253020LRT 253025

─LRT 253026LRT 253030

──

LRTZ 202518─

LRTZ 202520─

LRTZ 202525──

LRTZ 202531─

───

LRTZ 222818─

LRTZ 222831

────

LRTZ 253018──

LRTZ 253025──

22 23 24 28

28 35 35 36 40.5 41.5 44

17.5 24 30.5 32 55 55

25 38 28 28.5 29.5 34 42 42 44.5 49

20202020

20202020202020

222222222222

25252525252525252525

25252525

25252525252525

262628282828

29293030303030303030

16 17 18 20.5

20.5 25.5 25.5 26 30 31 32

16 20 17 18 30 31

20 30 16 17 18 20.5 25.5 25.5 26 30

0.30.30.30.3

0.30.30.30.30.30.30.3

22 22 22 22

22 22 22 22 22 22 22

24242424

24242424242424

RNAF 253716RNA 4904 RNAF 253517RNA 4904 UUTR 253820 NAX 2530NBX 2530GTR 253820TR 253825GTR 253825RNAFW 253526RNA 6904RNA 6904 UURNAFW 253732

0.30.30.30.30.30.3

24 24 24 24 24 24

252527272727

TAF 263416TAF 263420RNA 49 / 22RNA 49 / 22 UURNA 69 / 22RNA 69 / 22 UU

0.30.30.30.30.30.30.30.30.30.3

27 27 27 27 27 27 27 27 27 27

28282929292929292929

TAF 293820TAF 293830RNAF 304216RNA 4905 RNAF 304017RNA 4905 UUNAX 3030 NBX 3030TR 304425GTR 304425RNAFW 304026RNA 6905

(1)



Assembled bearings

d a



INNER RINGS




H

H161N=0.102kgf=0.2248lbs.1mm=0.03937inch


Shaft dia.

mm

Mass (Ref.)



25

28

30

32

─ LRT 253032

LRT 283217─

LRT 283220 LRT 283230

──

LRT 303516 LRT 303517

─ LRT 303520

LRT 303526 LRT 303530 LRT 303530-1

──

LRT 303532

LRT 323720 LRT 323730 LRT 323830

─ LRT 324020

─ LRT 324036

─

LRTZ 253031─

─LRTZ 283218

──

LRTZ 283230LRTZ 283231

──

LRTZ 303518─ ───

LRTZ 303530LRTZ 303531

─

───

LRTZ 323830─

LRTZ 324021─

LRTZ 324037

5154

24.5 25.5 28.5

434344

31.5 33.5

35 38.5

525959596164

43.563777769

72.5123130

2525

282828282828

30303030

303030303030

3232323232323232

3030

323232323232

35353535

353535353535

3737383840404040

31 32

17 18 20 30 30.5 31

16 17 18 20

26 30 30.5 30.5 31 32

20 30 30.5 30.5 20 21 36 37

0.30.3

2727

2929

RNA 6905 UURNAFW 304232

0.30.30.30.30.30.3

303030303030

313131313131

RNA 49 / 28RNA 49 / 28 UUTAF 324220RNA 69 / 28 TAF 324230GTR 324530RNA 69 / 28 UU

0.30.30.30.3 0.30.30.30.30.30.3

32323232

323232323232

34343434

343434343434

RNAF 354716RNA 4906 RNAF 354517RNA 4906 UUTAF 354520 NAX 3530NBX 3530RNAFW 354526RNA 6906 TAF 354530TR 354830GTR 354830RNA 6906 UURNAFW 354732

0.30.30.60.60.60.60.60.6

3434363636363636

3636373739393939

TAF 374720TAF 374730TR 385230GTR 385230RNA 49/32RNA 49/32 UURNA 69/32RNA 69/32 UU

(1)



Assembled bearings

d a

LRT LRTZ

F d

B

r

r

dF

B

r

r

d a




H17


Shaft dia.

mm

Mass (Ref.)



35

38

40

LRT 354017 LRT 354020

─ LRT 354030 LRT 354034 LRT 354040 LRT 354220

─ LRT 354230

─ LRT 354236

─

LRT 384320 LRT 384330

LRT 404517 LRT 404520

LRT 404530 LRT 404530-1

─ LRT 404534 LRT 404540 LRT 404822

─ LRT 404840

─

──

LRTZ 354020────

LRTZ 354221─

LRTZ 354230─

LRTZ 354237

──

──

──

LRTZ 404530───

LRTZ 404823─

LRTZ 404841

39 46

46 67 78 95 65 67 97 100 120 120

47.5 72

44.5 51

77 77 77 88 105 93 95 165 170

3535

35353535353535353535

3838

4040

404040404040404040

4040

40404040424242424242

4343

4545

454545454548484848

17 20

20.5 30 34 40 20 21 30.5 30.5 36 37

20 30

17 20 30 30.5 30.5 34 40 22 23 40 41

0.30.3

0.60.30.30.30.60.60.60.60.60.6

37 37

39 37 37 37 39 39 39 39 39 39

39 39

39.5 39 39 39 41 41 41 41 41 41

RNAF 405017TAF 405020 RNAF 405520NAX 4032 NBX 4032GTR 405520TAF 405030RNAFW 405034RNAFW 405540RNA 4907RNA 4907 UUTR 425630GTR 425630RNA 6907RNA 6907 UU

0.30.3

40 40

42 42

TAF 435320TAF 435330

0.30.3

0.30.60.60.30.30.60.60.60.6

42 42

42 44 44 42 42 44 44 44 44

44 44

44 44.5 44.5 44 44 47 47 47 47

RNAF 455517TAF 455520 RNAF 456220NAX 4532 NBX 4532TAF 455530TR 455930GTR 455930RNAFW 455534RNAFW 456240RNA 4908RNA 4908 UURNA 6908RNA 6908 UU

(1)



Assembled bearings

d a



INNER RINGS




H

H181N=0.102kgf=0.2248lbs.1mm=0.03937inch


Shaft dia.

mm

Mass (Ref.)



42

45

50

LRT 424720LRT 424730LRT 424830

─

LRT 455020LRT 455025

LRT 455030─

LRT 455035LRT 455040LRT 455222

─LRT 455240

─LRT 455520LRT 455540

LRT 505520LRT 505525LRT 505535LRT 505540LRT 505822

─LRT 505840

─LRT 505845

─LRT 506020

───

LRTZ 424830

──

─LRTZ 455030

───

LRTZ 455223─

LRTZ 455241 ──

─────

LRTZ 505823─

LRTZ 505841─

LRTZ 505845─

5481

100100

5871

909095

1158893

165170120245

6377

110130116118210215235235135

42424242

4545

45454545454545454545

5050505050505050505050

47474848

5050

50505050525252525555

5555555558585858585860

20 30 30.5 30.5

20 25

30.5 30.5 35 40 22 23 40 41 20 40

20 25 35 40 22 23 40 41 45.5 45.5 20

0.30.30.60.6

44444646

46 46 47 47

TAF 475720TAF 475730TR 486230GTR 486230

0.30.3

0.60.60.30.30.6 0.60.60.611

4747

49494747494949495050

49 49

49.5 49.5 49 49 51 51 51 51 54 54

RNAF 506220TAF 506225 NAX 5035NBX 5035TR 506430GTR 506430TAF 506235RNAFW 506240RNA 4909RNA 4909 UURNA 6909RNA 6909 UURNAF 557220RNAFW 557240

0.30.30.30.30.60.60.60.6111

5252525254545454555555

54 54 54 54 57 57 57 57 57 57 59

RNAF 556820TAF 556825TAF 556835RNAFW 556840RNA 4910RNA 4910 UURNA 6910RNA 6910 UUTR 587745GTR 587745RNAF 607820

(1)



Assembled bearings

d a

LRT LRTZ

F d

B

r

r

dF

B

r

r

d a




H19


INNER RINGS


Shaft dia.

mm

Mass (Ref.)



50

55

60

65

LRT 506025LRT 506040

LRT 556025LRT 556035LRT 556238

─LRT 556325

─LRT 556345

─LRT 556530LRT 556560

LRT 606825LRT 606825-1

─LRT 606835LRT 606845

─LRT 607025LRT 607030LRT 607045

─LRT 607060

LRT 657225─

LRT 657245─

LRT 657335

──

───

LRTZ 556238─

LRTZ 556326─

LRTZ 556346──

──

LRTZ 606826──

LRTZ 606846───

LRTZ 607045─

─LRTZ 657226

─LRTZ 657246

─

165265

88120190190145150255260220435

150150160210275280195240355360480

145150255265235

5050

55555555555555555555

6060606060606060606060

6565656565

6060

60606262636363636565

6868686868687070707070

7272727273

25.5 40

25 35 38.5 38.5 25 26 45 46 30 60

25 25 26 35 45 46 25.5 30 45.5 45.5 60

25 26 45 46 35

11

55 55

NAX 6040 NBX 6040RNAFW 607840

0.30.31111111.51.5

57 57 60 60 60 60 60 60 63 63

TAF 607225TAF 607235TR 628138GTR 628138RNA 4911RNA 4911 UURNA 6911RNA 6911 UURNAF 658530RNAFW 658560

0.6110.61111.5111.5

11111

64 65 65 64 65 65 65 68 65 65 68

70 70 70 70 70

59 59

59 59 60.5 60.5 61 61 61 61 63.5 63.5

66 66 66 66 66 66 68 68.5 68 68 68.5

70.5 70.5 70.5 70.5 71

TAF 688225RNA 4912RNA 4912 UUTAF 688235RNA 6912RNA 6912 UUNAX 7040RNAF 709030TR 708945GTR 708945RNAFW 709060

RNA 4913RNA 4913 UURNA 6913RNA 6913 UUTAF 739035

(1)

Boundary dimensions　mm


Assembled bearings

d a





H

H201N=0.102kgf=0.2248lbs.1mm=0.03937inch

LRT LRTZ

F d

B

r

r

dF

B

r

r

d a


Shaft dia.

mm

Mass (Ref.)



65

70

75

80

LRT 657530LRT 657560

LRT 708025LRT 708030LRT 708030-1

─LRT 708035LRT 708054

─LRT 708060

LRT 758345─

LRT 758525LRT 758530LRT 758530-1

─LRT 758535LRT 758554

─

LRT 809025LRT 809030LRT 809030-1

─LRT 809035LRT 809054

─

──

───

LRTZ 708031──

LRTZ 708055─

─LRTZ 758345

───

LRTZ 758531 ──

LRTZ 758555

───

LRTZ 809031──

LRTZ 809055

260520

225275275275310490500560

350350240290290300335520530

255310310315355550560

6565

7070707070707070

757575757575757575

80808080808080

7575

8080808080808080

838385858585858585

90909090909090

30 60

25 30 30 31 35 54 55 60

45.5 45.5 25 30 30 31 35 54 55

25 30 30 31 35 54 55

1.51.5

7373

73.5 73.5

RNAF 759530RNAFW 759560

111.511111.5

7575787575757578

78 78 78.5 78 78 78 78 78.5

TAF 809525RNA 4914RNAF 8010030RNA 4914 UUTAF 809535RNA 6914RNA 6914 UURNAFW 8010060

11111.51111

111.51111

808080808380808080

85858885858585

81 81 83 83 83.5 83 83 83 83

88 88 88.5 88 88 88 88

TR 8310845GTR 8310845TAF 8510525RNA 4915RNAF 8510530RNA 4915 UUTAF 8510535RNA 6915RNA 6915 UU

TAF 9011025RNA 4916RNAF 9011030RNA 4916 UUTAF 9011035RNA 6916RNA 6916 UU

(1)


Assembled bearings

d a





H21


Shaft dia.

mm

Mass (Ref.)



85

90

95

LRT 859350─

LRT 859526LRT 859530LRT 859536LRT 859545

─LRT 8510035

─LRT 8510063

─

LRT 9010026LRT 9010030LRT 9010036LRT 9010050

─LRT 9010535

─LRT 9010563

─

LRT 9510526LRT 9510536LRT 9511035

─LRT 9511063

─

─LRTZ 859350

────

LRTZ 859545─

LRTZ 8510036─

LRTZ 8510064

────

LRTZ 9010050─

LRTZ 9010536─

LRTZ 9010564

───

LRTZ 9511036─

LRTZ 9511064

440440280330390490490575605

1 0401 060

295355415580580610630

1 1001 120

315430650660

1 1601 180

8585858585858585858585

909090909090909090

959595959595

93939595959595

100100100100

100100100100100105105105105

105105110110110110

50.5 50.5 26 30 36 45.5 45.5 35 36 63 64

26 30 36 50.5 50.5 35 36 63 64

26 36 35 36 63 64

1111.511.51.51.11.11.11.1

90 90 90 93 90 93 93 91.5 91.5 91.5 91.5

91 91 93 93.5 93 93.5 93.5 98 98 98 98

TR 9311850GTR 9311850TAF 9511526RNAF 9511530TAF 9511536TR 9512045GTR 9512045RNA 4917RNA 4917 UURNA 6917RNA 6917 UU

11.511.51.51.11.11.11.1

95 98 95 98 98 96.5 96.5 96.5 96.5

98 98.5 98 98.5 98.5 103 103 103 103

TAF 10012026RNAF 10012030TAF 10012036TR 10012550GTR 10012550RNA 4918RNA 4918 UURNA 6918RNA 6918 UU

111.11.11.11.1

100 100 101.5 101.5 101.5 101.5

103 103 108 108 108 108

TAF 10512526TAF 10512536RNA 4919RNA 4919 UURNA 6919RNA 6919 UU

(1)



Assembled bearings

d a



INNER RINGS




H

H221N=0.102kgf=0.2248lbs.1mm=0.03937inch


Shaft dia.

mm

Mass (Ref.)



100

105

110

120

125

LRT 10011030LRT 10011040LRT 10011050

─LRT 10011540

─

LRT 10511550─

LRT 11012030LRT 11012540

─

LRT 12013030LRT 12013545

─

LRT 12514060─

───

LRTZ 10011050─

LRTZ 10011541

─LRTZ 10511550

──

LRTZ 11012541

──

LRTZ 12013546

─LRTZ 12514060

380500640640770780

670670

410840870

4501 0301 050

1 4601 460

100100100100100100

105105

110110110

120120120

125125

110110110110115115

115115

120125125

130135135

140140

304050.550.54041

50.550.5

304041

304546

60.560.5

111.51.51.11.1

105105108108106.5106.5

108108108.5108.5113113

TAF 11013030TAF 11013040TR 11013550GTR 11013550RNA 4920RNA 4920 UU

1.51.5

113113

113.5113.5

TR 11515350GTR 11515350

11.11.1

11.11.1

1.51.5

115116.5116.5

125126.5126.5

133133

118123123

128133133

138138

RNA 4822RNA 4922RNA 4922 UU


TR 14017860GTR 14017860

130

135

LRT 13014535LRT 13015050

─

LRT 13515060─

──

LRTZ 13015051

─LRTZ 13515060

8601 6701 720

1 5601 560

130130130

135135

145150150

150150

355051

60.560.5

1.11.51.5

1.51.5

136.5138138

143143

143148148

148148


TR 15018860GTR 15018860

140LRT 14015535LRT 14016050

─

──

LRTZ 14016051

9301 7901 830

140140140

155160160

355051

1.11.51.5

146.5148148

153158158


(1)



Assembled bearings

d a

LRT LRTZ

F d

B

r

r

dF

B

r

r

d a




H23




Shaft dia.

mm

Mass (Ref.)



150

160

170

180

190

LRT 15016540LRT 15017060

LRT 16017540LRT 16018060

LRT 17018545LRT 17019060

LRT 18019545LRT 18020569

LRT 19021050LRT 19021569

──

──

──

──

──

1 1302 290

1 2002 440

1 4202 580

1 5003 950

2 3804 200

150150

160160

170170

180180

190190

165170

175180

185190

195205

210215

4060

4060

4560

4569

5069

1.12

156.5159

163168

RNA 4830RNA 4930

1.12

166.5169

173178

RNA 4832RNA 4932

1.12

1.12

1.52

176.5179

186.5189

198199

183188

193203

208213

RNA 4834RNA 4934

RNA 4836RNA 4936

RNA 4838RNA 4938

200

220

LRT 20022050LRT 20022580

LRT 22024050LRT 22024580

──

──

2 5205 000

2 7505 500

200200

220220

220225

240245

5080

5080

1.52.1

1.52.1

208211

228231

218223

238243

RNA 4840RNA 4940

RNA 4844RNA 4944

240

260

280

300

320

LRT 24026560LRT 24026580

LRT 26028560LRT 260290100

LRT 28030569LRT 280310100

LRT 30033080LRT 300340118

LRT 32035080LRT 320360118

──

──

──

──

──

4 5306 000

4 9309 900

6 05010 600

9 10018 000

9 60019 200

240240

260260

280280

300300

320320

265265

285290

305310

330340

350360

6080

60100

69100

80118

80118

22.1

22.1

22.1

2.13

2.13

249251

269271

289291

311313

331333

262262

282287

302307

327337

347357

RNA 4848RNA 4948

RNA 4852RNA 4952

RNA 4856RNA 4956

RNA 4860RNA 4960

RNA 4864RNA 4964

(1)



Assembled bearings

d a

INNER RINGS




H

H241N=0.102kgf=0.2248lbs.1mm=0.03937inch


Shaft dia.

mm

Mass (Ref.)



340

360

380

400

420

440

LRT 34037080LRT 340380118

LRT 36039080LRT 360400118

LRT 380415100LRT 380430140

LRT 400450140

LRT 420470140

──

──

──

─

─

10 20020 300

10 80021 500

16 70033 900

35 600

37 300

340340

360360

380380

400

420

370380

390400

415430

450

470

80118

80118

100140

140

140

2.13

351353

367377

RNA 4868RNA 4968

2.13

371373

387397

RNA 4872RNA 4972

2.14

4

4

391396

416

436

412427

447

467

RNA 4876RNA 4976

RNA 4980

RNA 4984

LRT 440490160 ─ 44 100 440 490 160 4 456 487 RNA 4988

(1)



Assembled bearings

d a

LRT

F d

B

r

r

d a




H25


Note(1)　 Maximum allowable fillet corner radius of shaft Remark　LRB and LRBZ…B are provided with an oil groove and an oil hole.

Shaft dia.

mm(inch)

Mass (Ref.)


gd F B Min. Max. Max.

9.525（ 3╱8）

LRB 61012─

─ LRBZ 61016 B

12.700（ 1╱2）

LRB 81212LRB 81216

─

──

LRBZ 81216 B

15.875（ 5╱8）

LRB 101412LRB 101416

─

──

LRBZ 101416 B

19.050（ 3╱4）

LRB 121612LRB 121616

─

──

LRBZ 121616 B

22.225（ 7╱8）

LRB 141816LRB 141820

─

──

LRBZ 141820 B

(1)


Standard mounting dimensions　mm

d a ras max

18.525

19.30025.650

1414

17.517.517.5

212121

242424

272727

14.514.5

0.60.6

110.6

110.6

110.6

110.6

181818

21.221.221.2

24.424.424.4

27.527.527.5

19.30025.65025.650

19.30025.65025.650

19.30025.65025.650

25.65032.00032.000

9.525（ 3╱ 8） 9.525（ 3╱ 8）12.700（ 1╱ 2）12.700（ 1╱ 2）12.700（ 1╱ 2）15.875（ 5╱ 8）15.875（ 5╱ 8）15.875（ 5╱ 8）19.050（ 3╱ 4）19.050（ 3╱ 4）19.050（ 3╱ 4）22.225（ 7╱ 8）22.225（ 7╱ 8）22.225（ 7╱ 8）

15.875（ 5╱ 8）15.875（ 5╱ 8）19.050（ 3╱ 4）19.050（ 3╱ 4）19.050（ 3╱ 4）22.225（ 7╱ 8）22.225（ 7╱ 8）22.225（ 7╱ 8）25.400（1 ）25.400（1 ）25.400（1 ）

28.575（1 1╱ 8）28.575（1 1╱ 8）28.575（1 1╱ 8）

23.53131

2837.537.5

334444

506262

Shaft dia. 9.525－ 22.225mm

INNER RINGS

Inch Series




H

H261N=0.102kgf=0.2248lbs.1mm=0.03937inch

Assembled bearings

BR 101812BR 101816UU

BR 122012BR 122016BR 122016UU

BR 142212BR 142216BR 142216UU

BR 162412BR 162416BR 162416UU

BR 182616BR 182620BR 182620UU

LRB LRBZ … B

dF

B

da

ra

dF

B




H27


Shaft dia.

mm(inch)

Mass (Ref.)


gd F B Min. Max. Max.

28.575（1 1╱8）

LRB 182216LRB 182220

─

──

LRBZ 182220 B

31.750（1 1╱4）

LRB 202416LRB 202420

─

──

LRBZ 202420 B

34.925（1 3╱8）

LRB 222616LRB 222620

─

──

LRBZ 222620 B

38.100（1 1╱2）

LRB 242816LRB 242820LRB 243020

──

───

LRBZ 242820 BLRBZ 243020 B

(1)



d a ras max

637777

25.65032.00032.000

33.533.533.5

373737

40.240.240.2

43.343.343.343.343.3

33.933.933.9

110.6

1.51.50.6

1.51.50.6

1.51.51.50.61

37.137.137.1

40.240.240.2

43.443.44543.445

25.65032.00032.000

25.65032.00032.000

25.65032.00032.00032.00032.000

28.575（1 1╱ 8）28.575（1 1╱ 8）28.575（1 1╱ 8）

31.750（1 1╱ 4）31.750（1 1╱ 4）31.750（1 1╱ 4）34.925（1 3╱ 8）34.925（1 3╱ 8）34.925（1 3╱ 8）

38.100（1 1╱ 2）38.100（1 1╱ 2）38.100（1 1╱ 2）38.100（1 1╱ 2）38.100（1 1╱ 2）

34.925（1 3╱ 8）34.925（1 3╱ 8）34.925（1 3╱ 8）

38.100（1 1╱ 2）38.100（1 1╱ 2）38.100（1 1╱ 2）41.275（1 5╱ 8）41.275（1 5╱ 8）41.275（1 5╱ 8）

44.450（1 3╱ 4）44.450（1 3╱ 4）47.625（1 7╱ 8）44.450（1 3╱ 4）47.625（1 7╱ 8）

718686

779696

80100155100160

Shaft dia. 25.400－ 38.100mm

25.400（1）

LRB 162016LRB 162020

─

──

LRBZ 162020 B

30.530.530.5

110.6

30.730.730.7

25.65032.00032.000

25.400（1 ）25.400（1 ）25.400（1 ）

31.750（1 1╱ 4）31.750（1 1╱ 4）31.750（1 1╱ 4）

567272

INNER RINGS

Inner Rings for General Usage Inch Series




H

H281N=0.102kgf=0.2248lbs.1mm=0.03937inch

Assembled bearings

BR 223016BR 223020BR 223020UU

BR 243316BR 243320BR 243320UU

BR 263516BR 263520BR 263520UU

BR 283716BR 283720 BR 283820BR 303920BR 283720UUBR 303920UU

BR 202816BR 202820BR 202820UU

LRBZ … BLRB

dF

B

da

ra

dF

B




H29


Shaft dia.

mm(inch)

Mass (Ref.)


g d F B Min. Max. Max.

50.800（2）

LRB 324024LRB 324028

─

──

LRBZ 324028 B

57.150（21╱4）

LRB 364424LRB 364428

─

──

LRBZ 364428 B

63.500（21╱2）

LRB 404824LRB 404828

─

──

LRBZ 404828 B

(1)



d a ras max

335390390

38.35044.70044.700

585858

656565

717171

616161

221.5

221.5

221.5

676767

737373

38.35044.70044.700

38.35044.70044.700

50.800（2 ）50.800（2 ）50.800（2 ）

57.150（2 1╱ 4）57.150（2 1╱ 4）57.150（2 1╱ 4）63.500（2 1╱ 2）63.500（2 1╱ 2）63.500（2 1╱ 2）

63.500（2 1╱ 2）63.500（2 1╱ 2）63.500（2 1╱ 2）69.850（2 3╱ 4）69.850（2 3╱ 4）69.850（2 3╱ 4）76.200（3 ）76.200（3 ）76.200（3 ）

375440440

410480480

Shaft dia. 41.275－ 63.500mm

41.275（1 5╱8）

LRB 263216LRB 263220

─

──

LRBZ 263220 B

44.450（1 3╱4）

LRB 283624LRB 283628

─

──

LRBZ 283628 B

25.65032.00032.000

38.35044.70044.700

41.275（1 5╱ 8）41.275（1 5╱ 8）41.275（1 5╱ 8）

44.450（1 3╱ 4）44.450（1 3╱ 4）44.450（1 3╱ 4）

50.800（2 ）50.800（2 ）50.800（2 ）

57.150（2 1╱ 4）57.150（2 1╱ 4）57.150（2 1╱ 4）

135170170

300345345

484848

52.552.552.5

1.51.51

1.51.51.5

494949

555555

INNER RINGS

Inner Rings for General Usage Inch Series




H

H301N=0.102kgf=0.2248lbs.1mm=0.03937inch

Assembled bearings

LRBZ … BLRB

BR 405224BR 405228BR 405228UU

BR 445624BR 445628BR 445628UU

BR 486024BR 486028BR 486028UU

BR 324116BR 324120BR 324120UU

BR 364824BR 364828BR 364828UU

dF

B

da

ra

dF

B




H31

Shaft dia. 69.850－ 88.900mm


Note(1)　 Maximum allowable fillet corner radius of shaft Remark　 LRB with inner ring bore diameter d of 76.200 mm or less and LRBZ…B are provided with an oil groove and an oil hole. Other models are provided with an oil groove and two oil holes.

Shaft dia.

mm(inch)

Mass (Ref.)


g d F B Min. Max. Max.

──

LRBZ 445228 B

69.850（23╱4）

LRB 445228LRB 445232

─76.200（3）

LRB 485632─

─ LRBZ 485632 B

82.550（31╱4）88.900（31╱2）

LRB 526032─

LRB 566432

─ LRBZ 526032 B

─

(1)



d a ras max

77 77 77

83.5 83.5

91 91

97

221.5

21.5

2.51.5

2.5

797979

8686

9393

99

44.70051.05044.700

51.05051.050

51.05051.050

51.050

69.850（2 3╱ 4）69.850（2 3╱ 4）69.850（2 3╱ 4）76.200（3 ）76.200（3 ）

82.550（3 1╱ 4）82.550（3 1╱ 4）

88.900（3 1╱ 2）

82.550（3 1╱ 4） 82.550（3 1╱ 4） 82.550（3 1╱ 4）

88.900（3 1╱ 2） 88.900（3 1╱ 2） 95.250（3 3╱ 4） 95.250（3 3╱ 4）

101.600（4 ）

530600530

640640

690690

750

INNER RINGS

Inch Series




H

H321N=0.102kgf=0.2248lbs.1mm=0.03937inch

Assembled bearings

BR 526828BR 526832BR 526828UU

BR 567232BR 567232UU

BR 607632BR 607632UU

BR 648032

LRBZ … BLRB

dF

B

da

ra

dF

B




Inner Rings for Shell Type Needle Roller Bearings Inner ...

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