• The Proven Product Patented in 1977 Over 100,000 in Use

• Cost Efficient Custom Designs No upfront tooling or pattern charges Imperial and metric sizing

• Quick Deliveries No waiting for patterns and prototype approvals

• Spin Hardening Process Available

• Long Sheave and Rope Life Flame hardened precision grooves promote slow, even wear (optional under 16 inch diameter)

• Superior Strength The integrity of single disc forged steel construction

• Many Standard Models More than 250 standard models available

A Superior Process - A Superior Product

MG 4/07

CORPORATE OFFICE1240 North Harvard • Tulsa, OK 74115(918) 832-8933 • Fax (918) 834-0984

www.gunnebojohnson.com

1-800-331-5460

®

JOHNSONWIRE ROPE

SHEAVES

JOHNSONWIRE ROPE

SHEAVES

The company began in the 1930’s in the oilfield tool manufacturing business. A line of wellheads

bearing the famous Hinderliter name was developed, followed by the introduction of Johnson crane blocks. These lines were expanded with the addition of overhaul balls, wedge sockets, swivels, specialty blocks and, of course, a complete line of snatch blocks and

sheaves, heavily used in the oilfield.

Today, Gunnebo Johnson is a modern part of centuries old Gunnebo Industries from Sweden, with a perfect blending of above and below the hook products for

industrial lifting and material handling.

Johnson blocks and overhaul balls dominate the North American lifting

industry. Johnson snatch blocks, specialty tackle and ForgeFab® sheaves are found wherever experienced people insist on the best and most reliable products in the toughest applications.

With specialty swivels deep in the ocean, with blocks and sheaves

in the Gulf of Mexico and the harsh

North Sea, Johnson products are at work everyday around the globe.

Johnson products give you quality performance and value unmatched in the industry. Reliability you can count on.

Gunnebo Johnson

50 years of American excellence and industry leadership. Gunnebo Johnson has deep roots in the oilfield and the OEM crane industries.

2 Gunnebo and Gunnebo Johnson - ISO 9001 Registered Firms

The accompanying chart shows which Johnson sheaves generally comply with ANSI or CMAA Standards. Consult Factory for specific applications.

Translating Pitch Diameter ratios to obtain the closest appropriate sheave diameters, the table ranges from an 8-inch hoisting block sheave to a 48 inch overhead crane sheave.

How Sheave Size Affects Wire Rope Strength

Severe bending is a major cause of short rope life. By contrast, the larger the sheave diameters, the less wear on the rope and greater its strength efficiency.

Johnson ForgeFab® and other sheaves are available from 3” to 108” diameters. Sheaves from 14” to 72” are generally ForgeFab®, with larger sizes fabricated from forged rings and completed on Gunnebo Johnson’s heavy machining centers, in-house, for effective cost and delivery control.

Johnson has supplied millions of dollars in sheaves for pipelay systems, drilling systems, motion compensation systems, crown blocks and other applications, both onshore and offshore.

* 16 to 1 P.D. ratio required for hoisting blocks by ASME B30.5 (Crawler, Locomotive and Truck Cranes), and ASME B30.15 (Mobile Hydraulic Cranes). ASME B30.5 is required by OSHA regulations as stipulated in the Federal Register dated June 24 and June 27, 1974, OSHA sub-part 1926 - 550.

Outside Diameter (O.D.) The diameter of a circular object as measured from its outer-most edges.

Pitch Diameter (P.D.) The measure of the bend of the rope around the sheave, and represented by the distance between the center of the rope on one side of the sheave and the center of the rope on the other. Formula: P.D. = T.D. + Nominal Rope Size.

Tread Diameter (T.D.) Measurement from deepest point of the sheave groove on one side of sheave to deepest point of sheave groove on the other side.

7/16 8 12

1/2 10 14

9/16 10 16

5/8 12 18

3/4 14 20

7/8 16 24

1 18 26

1-1/8 20 30

1-1/4 24 34

1-3/8 24 36

1-1/2 26 42

1-5/8 28 42

1-3/4 30 48

1-7/8 36 48

2 36

NOMINAL WIREROPE SIZE

(IN.)

ANSI B30.5*ANSI B30.15*

HOISTING BLOCKS (IN.)

CMAAOVERHEAD

CRANE BLOCKS (IN.)

MINIMUM JOHNSON BLOCKSSHEAVE O.D. REQUIREMENTS ASCOMPLY WITH ANSI AND CMAA

STANDARDS

*24 to 1 P.D. ratio required for running sheaves with 6 x 37 rope by CMAA Specification No. 70 (Electric Overhead Traveling Cranes).

7

JOHNSON FORGEFAB® SHEAVE APPLICATION INFORMATION

Gunnebo Johnson is a licensed API 8A and 8C manufacturer.

10 10-25T 452251 C.S. 33 1/2 1-1/2 2.124 2.125 4.500 –

12 12-25T 452252 C.S. 28 1/2 1-1/4 2.124 2.125 4.500 –

14 14-25T 452253 C.S. 33 1/2 1-3/8 2.124 2.125 4.500 –

16 16-25T 452254 F.F. 52 1/2 3/4 2.124 2.125 4.750 .750

18 18-25T 452255 F.F. 64 1/2 7/8 2.124 2.125 4.750 .750

18 18-25TM 453960 F.F. 66 5/8 1-1/8 2.624 2.875 5.500 .750

18 18-250T 452246 F.F. 71 5/8 1-1/8 4.249 3.375 8.500 .750

20 20-25T 452256 F.F. 80 1/2 7/8 2.124 2.125 4.750 .750

20 20-25TM 453961 F.F. 82 5/8 1-1/8 2.624 2.875 5.500 .750

20 20-250T 452247 F.F. 86 5/8 1-1/8 4.249 3.375 8.500 .750

24 24-25T 452257 F.F. 111 5/8 7/8 2.124 2.125 4.750 .750

24 24-25TM 453962 F.F. 113 5/8 1-1/8 2.624 2.875 5.500 .750

24 24-240T 455166 F.F. 123 5/8 1-1/8 4.249 3.500 8.500 .750

24 24-250T 452248 F.F. 120 5/8 1-1/8 4.249 3.375 8.500 .750

26 26-250T 452249 F.F. 138 5/8 1-1/8 4.249 3.375 8.500 .750

28 28-240T 455167 F.F. 160 5/8 1-1/8 4.249 3.500 8.500 .750

30 30-250T 452250 F.F. 217 1 1-3/8 4.249 3.375 8.500 1.000

30 30-350T 452258 F.F. 232 1-1/4 1-1/2 6.499 3.750 11.500 1.250

34 34-250T 455168 F.F. 280 1-1/8 1-3/8 4.249 3.375 8.500 1.000

36 36-350T 452259 F.F. 385 1-1/4 1-5/8 6.499 3.750 11.500 1.250

42 42-340T 455169 F.F. 620 1-3/8 2 6.499 3.750 11.500 1.500

42 42-350T 452260 F.F. 623 1-3/8 2 6.499 3.750 11.500 1.500

48 48-350T 452261 F.F. 645 1-3/8 2 6.499 3.750 11.500 1.500

52 52-550T 455170 F.F. 936 1-3/8 2 7.999 3.750 14.000 1.500

52 52-560T 458453 F.F. 958 1-3/8 2-1/4 9.249 4.625 17.000 1.500

52 52-560TA 458454 F.F. 928 1-3/8 2-1/4 9.999 4.000 17.000 1.500

Grease fitting on sheave hub available on request

10 through 14-inch Sheaves: Rim width (not shown) allows for adequate running clearance

ANOMINAL

O.D.(IN.)

JOHNSON MODEL

NUMBER

PARTNO.

MATERIAL

*WEIGHT(LBS.)

WIRE ROPE SIZE

MIN MAX (IN.) (IN.)

ESHAFTSIZE(IN.)

GHUB

WIDTH(IN.)

THUBO.D.(IN.)

BWEBTHICK.

* MATERIAL C.S. = CAST STEEL, F.F. = FORGEFAB 54” and larger diameters available upon request

Consult factory for rim width information.

TO ORDER, PLEASE SPECIFY:NOMINAL SHEAVE O.D., MODEL NUMBER, WIRE ROPE SIZE

TAPERED ROLLER BEARING SHEAVES

AVAILABLE BUSHING AND BEARING OPTIONS

• 1/4 through 3-inch Wire Rope Sizes

• 4 to 1 Design Factor

• 3 through 72-Inch Diameters (larger on request)

• Flame-Hardened Grooves, Size 16 inches and Larger

• Spin Hardening Process Available

6

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Bronze BushingsSpecialty Bushings

Roller BearingWithout Inner Race

Roller BearingWith Inner Race

Tapered RollerBearing

A full range of standard bronze bushing and roller bearing models is also available, as well as custom sizes. Please refer to the Johnson General Catalog or contact Gunnebo Johnson.

Alloy steel used on ForgeFab sheaves is specially made to provide highly desirable characteristics of strength, ductility and hardenability. The wear path on ForgeFab sheaves is flame-hardened or, alternatively, spin-hardened for long life. Spin hardening, a proprietary process, provides the ultimate in wear for a very reasonable cost. Flame hardening, standard at 16 inches diameter and over, is a market proven system for general applications. Flame hardening is also available on smaller sizes, if required. All sheaves can be equipped with lubrication fittings when specified.

®

Sheaves

1. Each ForgeFab® sheave begins as a computer driven,

precision disc cut from proprietary chemistry alloy steel

plate.

2. The steel disc is heated to forging temperature and its

edge rotated against a system of staged rollers to forge

the sheave rim and wire rope groove.

3. A precisely machined hub is arc welded to the forged disc.

A variety of welding techniques is used, including:

fillet, submerged arc, partial penetration and full

penetration, depending upon the application.

4. The result - a precision built ForgeFab sheave.

3Gunnebo Johnson holds API 8A and 8C licenses.

3 4243 C.I .9 3/8 3/8 .875/.876 .750 1.125 –3 3383 S. 1.35 1/4 7/16 .875/.,876 1.000 1.375 –3 3405 S. 1.3 1/4 5/8 1.1255/1.265 1.250 1.625 –4-1/4 2536 D.I. 1.8 1/2 3/4 1.250/1.251 1.500 1.810 –4-1/4 3476 D.I. 1.8 1 MR 1-1/4MR 1.250/1.251 1.500 1.810 –4-1/2 3014 D.I. 1.8 3/16 3/4 1.312/1.313 1.563 2.000 –6 2978 D.I. 3.6 3/16 5/8 1.125/1.126 1.125 2.250 –6 3015 D.I. 5.4 1/4 1 1.312/1.313 1.583 2.750 –6 3094 D.I. 6.4 3/8 1 1.8745/1.8755 1.625 3.130 –6 3095 D.I. 6.4 3/8 1 2.3109/2.3119 1.625 3.130 –6 3175 D.I. 8 3/8 1-1/8 2.4995/2.5005 2.000 3.125 –8 3016 D.I. 6.3 3/8 3/4 1.312/1.313 1.563 2.500 –8 3013 D.I. 6.3 1/4 3/4 1.250/1.251 1.375 2.500 –8 3019 D.I. 6.3 1/4 3/4 1.312/1.313 1.375 2.500 –8 3096 D.I. 10.5 3/8 7/8 1.8745/1.8755 1.625 3.000 –8 3097 D.I. 12.5 3/8 1 2.3109/2.3119 1.625 3.130 –8 3177 D.I. 15 1/2 1-1/8 2.4995/2.5005 2.000 4.000 –8 3178 D.I. 18.3 1/2 1-1/8 3.2486/3.2496 2.000 4.000 –8 3293 C.S. 17 1/2 1-1/2 2.7505/2.7515 2.500 4.000 –8 3294 C.S. 17 1/2 1-1/2 3.4985/3.4995 2.500 4.000 –10 3245 D.I. 10 3/8 3/4 1.8745/1.8755 1.563 2.500 –10 3246 D.I. 10 1/4 3/4 2.0611/2.0621 1.563 2.938 –10 3098 D.I. 12 5/16 3/4 1.8745/1.8755 1.625 2.500 –10 3099 D.I. 10.9 5/16 3/4 2.3109/2.3119 1.625 2.938 –10 3179 D.I. 20.8 1/2 1-1/8 2.4995/2.5005 2.000 4.000 –10 5601 D.I. 20.1 1/2 1-1/8 2.5611/2.5621 1.750 4.000 –10 5606 D.I. 19.5 1/2 1-1/8 2.999/3.000 2.000 4.000 –10 3180 D.I. 19.5 1/2 1-1/8 3.2484/3.2494 2.000 4.000 –10 3295 C.S. 31 1/2 1-1/2 2.7505/2.7515 2.500 4.500 –10 3296 C.S. 30 3/8 1-1/2 3.4985/3.4995 2.500 4.500 –12 3373 D.I. 22 3/8 7/8 1.312/1.313 1.563 3.188 –12 6884 D.I. 19 3/8 7/8 1.8745/1.8755 1.563 3.188 –12 3100 D.I. 16 3/8 1 1.8745/1.8755 1.625 3.188 –12 6885 D.I. 18 3/8 1 2.0611/2.0621 1.563 3.188 –12 3101 D.I. 17 3/8 7/8 2.311/2.312 1.625 3.188 –12 3181 D.I. 23.7 1/2 1-1/8 2.4995/2.5005 2.000 4.500 –12 5583 D.I. 23 1/2 1-1/8 2.5611/2.5621 1.750 4.500 –12 5585 D.I. 23 1/2 1-1/8 2.999/3.000 2.000 4.250 –12 3182 D.I. 20.4 1/2 1-1/8 3.2486/3.2496 2.000 4.500 –12 3297 C.S. 26.3 1/2 1-3/8 2.7505/2.7515 2.500 4.500 –12 3298 C.S. 24 7/16 1-1/4 3.4985/3.4995 2.500 4.500 –14 3235 C.S. 15 3/8 3/4 1.8745/1.8755 1.563 2.750 –14 3102 C.S. 24 3/8 1 1.8745/1.8755 1.625 2.813 –14 3227 C.S. 14 3/8 9/16 2.0611/2.0621 1.563 2.750 –14 3103 C.S. 23 7/16 1 2.3109/2.3119 1.625 2.813 –14 3183 F.F. 23.5 1/2 1-1/8 2.4995/2.5005 2.000 4.500 –14 5513 F.F. 22.5 1/2 1-1/8 2.5611/2.5621 1.750 4.500 –14 5520 F.F. 34 1/2 1-1/8 2.999/3.000 2.000 4.500 –14 3184 F.F. 35 1/2 1-1/8 3.2486/3.2496 2.000 4.500 –14 3299 C.S. 29 1/2 1-3/8 2.7505/2.7515 2.500 4.500 –14 3300 C.S. 28 1/2 1-3/8 3.4985/3.4995 2.500 4.500 –14 4320 C.S. 44 1/2 1-1/2 4.4985/4.4995 2.375 6.000 –14 4319 C.S. 49 5/8 1-1/2 4.4985/4.4995 2.750 6.000 –

Grease fitting on sheave hub available on request

ANOMINAL

O.D.(IN.)

PARTNO.

MATERIAL

*WEIGHT(LBS.)

WIRE ROPE SIZE

MIN MAX (IN.) (IN.)

FHUB BORE

(IN.)

GHUB

WIDTH(IN.)

THUBO.D.(IN.)

BWEB

THICK.

*-MATERIAL C.I. = CAST IRON, D.I. = DUCTILE IRON, C.S. = CAST STEEL, F.F. = FORGEFAB, S. = STEEL

Consult factory for rim width information.

FINISH BORED SHEAVES

4

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rd M

odel

s

FINISH BORED SHEAVES

16 3185 F.F. 46 1/2 3/4 2.4995/2.5005 2.000 3.750 .075016 5629 F.F. 49 1/2 3/4 2.9987/2.9997 2.000 4.750 .075016 3186 F.F. 48 1/2 3/4 3.2486/3.2496 2.000 4.750 .075016 3301 F.F. 48 1/2 1-1/8 2.7505/2.7515 2.500 3.750 .075016 3302 F.F. 48 1/2 1-1/8 3.4985/3.4995 2.500 4.750 .075016 5661 F.F. 47 1/2 1-1/8 3.7485/3.7495 2.500 4.750 .075016 6084 F.F. 47 1/2 1-1/8 3.999/4.000 2.500 5.500 .075016 4322 F.F. 46 1/2 1-1/8 4.4985/4.4995 2.375 5.500 .075016 6085 F.F. 47 1/2 1-1/8 4.4985/4.4995 2.500 5.500 .075016 4321 F.F. 47 1/2 1-1/8 4.4985/434995 2.750 5.500 .075018 1742 F.F. 61 1/2 3/4 2.999/3.000 2.000 4.750 .075018 1741 F.F. 59 1/2 3/4 3.2486/3.2496 2.000 4.750 .075018 5694 F.F. 59 1/2 1-1/8 3.4985/3.4995 2.500 4.750 .075018 5695 F.F. 59 1/2 1-1/8 3.7485/3.7495 2.500 4.750 .075018 5707 F.F. 61 1/2 1-1/8 3.999/4.000 2.500 5.500 .075018 5708 F.F. 59 1/2 1-1/8 4.4985/4.4995 2.500 5.500 .075018 5441 F.F. 58 1/2 1-1/8 4.4985/4.4995 2.375 5.500 .075018 4324 F.F. 59 1/2 1-1/8 5.9985/5.9999 2.375 7.500 .075018 4770 F.F. 61 1/2 1-1/8 6.4984/6.4999 2.250 8.500 .075020 5761 F.F. 73 1/2 1-1/8 3.4985/3.4995 2.500 4.750 .075020 5762 F.F. 72 1/2 1-1/8 3.7485/3.7495 2.500 4.750 .075020 5754 F.F. 74 1/2 1-1/8 3.999/4.000 2.500 5.500 .075020 5466 F.F. 72 1/2 1-1/8 4.4985/4.4995 2.375 5.500 .075020 5758 F.F. 72 1/2 1-1/8 4.4985/4.4995 2.500 5.500 .075020 4326 F.F. 73 1/2 1-1/8 5.9984/5.999 2.375 7.500 .075020 4325 F.F. 75 5/8 1-1/8 5.9984/5.999 2.750 7.500 .075020 4772 F.F. 74 1/2 1-1/8 6.4984/6.4999 2.250 8.500 .075024 5803 F.F. 102 5/8 1-1/8 3.4985/3.4995 2.500 4.750 .075024 5804 F.F. 103 5/8 1-1/8 3.7485/3.7495 2.500 4.750 .075024 5797 F.F. 105 5/8 1-1/8 3.999/4.000 2.500 5.500 .075024 4433 F.F. 102 5/8 1-1/8 4.4985/4.4995 2.375 5.500 .075024 5798 F.F. 101 5/8 1-1/8 4.4985/4.4995 2.500 5.500 .075024 4522 F.F. 102 5/8 1-1/8 5.9984/5.999 2.375 7.500 .075024 4521 F.F. 104 5/8 1-1/8 5.9984/5.999 2.750 7.500 .075024 5814 F.F. 105 5/8 1-1/8 6.4984/6.4999 2.250 8.500 .075024 4929 F.F. 112 5/8 1-1/8 6.497/6.498 3.375 8.500 .075026 4967 F.F. 120 5/8 1-1/8 5.9984/5.999 2.375 7.500 .075026 4966 F.F. 121 5/8 1-1/8 5.9984/5.999 2.750 7.500 .075026 4774 F.F. 121 5/8 1-1/8 5.9984/5.999 2.250 8.500 .075028 4931 F.F. 143 5/8 1-1/8 6.497/6.498 3.375 8.500 .075030 4249 F.F. 208 1-1/8 1-3/8 5.9984/5.999 2.375 7.500 1.00030 4776 F.F. 208 1 1-3/8 6.4984/6.4999 2.250 8.500 1.00030 4775 F.F. 269 1-1/4 1-1/2 8.873/8.874 3.750 11.500 1.25034 4768 F.F. 265 1-1/8 1-3/8 5.9984/5.999 2.375 7.500 1.00034 4771 F.F. 266 1-1/8 1-3/8 5.9984/5.999 2.750 7.500 1.00034 4769 F.F. 259 1-1/4 1-3/8 6.4984/6.4999 2.250 8.500 1.00036 4777 F.F. 373 1-3/8 1-1/2 8.873/8.874 3.750 11.500 1.25042 4932 F.F. 595 1-3/8 2 8.873/8.874 3.500 11.500 1.50042 4778 F.F. 600 1-3/8 2 8.873/8.874 3.750 11.500 1.50048 4779 F.F. 626 1-3/8 2 8.873/8.874 3.750 11.500 1.50052 4934 F.F. 918 1-3/8 2 10.872/10.873 3.625 14.000 1.50052 1794 F.F. 938 1-3/8 2-1/4 12.871/12.873 4.500 17.000 1.50052 1798 F.F. 906 1-3/8 2-1/4 13.6835/13.6855 4.000 17.000 1.500

Grease fitting on sheave hub available on request

ANOMINAL

O.D.(IN.)

PARTNO.

MATERIAL

*WEIGHT(LBS.)

WIRE ROPE SIZE

MIN MAX (IN.) (IN.)

FHUB BORE

(IN.)

GHUB

WIDTH(IN.)

THUBO.D.(IN.)

BWEB

THICK.

* MATERIAL F.F. = FORGEFAB 54” AND LARGER DIAMETERS AVAILABLE ON REQUEST

Consult factory for rim width information. 5

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