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- Crosby McKissick and Lebus Pulley / Crane Blocks/
- Crosby McKissick Oilfilled Blocks/
- Crosby McKissick 731 & 732 Oilfield Crown Blocks, WLL Range from 13,500kg to 170 tonne
- McKissick Roll-Forged sheaves with flame hardened grooves.
- Double row pre-adjusted sealed tapered bearings mounted on a steel shaft.
- Heavy center and side plates for proper support of center pin.
- Pre-assembled units for rapid attachment to crown assembly for installation on derrick.
- On multiple sheave assemblies, one sheave can be grooved for sand line on request.
- Other sizes available upon request.
- Sheaves manufactured to API-8C specifications.
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| 731 | 732 |
Imperial Specifications
| Sheave Diameter (in.) |
Block No. | Crown Block Stock No. | No. of Sheaves | Working Load Limit (Tons) |
Standard Wire Rope Size (in.)* |
Weight Each (lbs.) |
| 24 | 241 | 351158 | 1 | 15 | 7/8 | 200 |
| 24 | 242 | 351167 | 2 | 30 | 7/8 | 278 |
| 24 | 243 | 351176 | 3 | 45 | 7/8 | 375 |
| 24 | 731 | 351185 | 1 | 35 | 1 | 200 |
| 24 | 732 | 351194 | 2 | 75 | 1 | 350 |
| 24 | 733 | 351201 | 3 | 100 | 1 | 525 |
| 24 | 734 | 351210 | 4 | 125 | 1 | 720 |
| 30 | 741 | 351229 | 1 | 40 | 1-1/8 | 325 |
| 30 | 742 | 351238 | 2 | 80 | 1-1/8 | 560 |
| 30 | 743 | 351247 | 3 | 110 | 1-1/8 | 800 |
| 30 | 744 | 351256 | 4 | 140 | 1-1/8 | 982 |
| 30 | 745 | 351265 | 5 | 170 | 1-1/8 | 1163 |
Metric Specifications
| Sheave Diameter (mm) | Block No. | Crown Block Stock No. | No. of Sheaves | Working Load Limit (t) | Standard Wire Rope Size (mm)* | Weight Each (kg) |
| 610 | 241 | 351158 | 1 | 13.5 | 22 | 91 |
| 610 | 242 | 351167 | 2 | 27 | 22 | 126 |
| 610 | 243 | 351176 | 3 | 40.5 | 22 | 170 |
| 610 | 731 | 351185 | 1 | 31.5 | 25 | 91 |
| 610 | 732 | 351194 | 2 | 67.5 | 25 | 159 |
| 610 | 733 | 351201 | 3 | 90 | 25 | 238 |
| 610 | 734 | 351210 | 4 | 113 | 25 | 327 |
| 762 | 741 | 351229 | 1 | 36 | 28 | 147 |
| 762 | 742 | 351238 | 2 | 72 | 28 | 254 |
| 762 | 743 | 351247 | 3 | 99 | 28 | 363 |
| 762 | 744 | 351256 | 4 | 126 | 28 | 445 |
| 762 | 745 | 351265 | 5 | 153 | 28 | 528 |
*May be furnished in other wire rope sizes.
Contact Us About This Product
If you wish to receive a quote for this product, please use the tab, this form is for general enquiries regarding this product only.
You can also request a quote through the pricing tab!
You can easily add more than one item to the Quote Request. This is highly recommended as we will be able to suit your needs much more efficiently.
Share this page!
- McKissick Roll-Forged sheaves with flame hardened grooves.
- Double row pre-adjusted sealed tapered bearings mounted on a steel shaft.
- Heavy center and side plates for proper support of center pin.
- Pre-assembled units for rapid attachment to crown assembly for installation on derrick.
- On multiple sheave assemblies, one sheave can be grooved for sand line on request.
- Other sizes available upon request.
- Sheaves manufactured to API-8C specifications.
![]() ![]() |
![]() |
| 731 | 732 |
Imperial Specifications
| Sheave Diameter (in.) |
Block No. | Crown Block Stock No. | No. of Sheaves | Working Load Limit (Tons) |
Standard Wire Rope Size (in.)* |
Weight Each (lbs.) |
| 24 | 241 | 351158 | 1 | 15 | 7/8 | 200 |
| 24 | 242 | 351167 | 2 | 30 | 7/8 | 278 |
| 24 | 243 | 351176 | 3 | 45 | 7/8 | 375 |
| 24 | 731 | 351185 | 1 | 35 | 1 | 200 |
| 24 | 732 | 351194 | 2 | 75 | 1 | 350 |
| 24 | 733 | 351201 | 3 | 100 | 1 | 525 |
| 24 | 734 | 351210 | 4 | 125 | 1 | 720 |
| 30 | 741 | 351229 | 1 | 40 | 1-1/8 | 325 |
| 30 | 742 | 351238 | 2 | 80 | 1-1/8 | 560 |
| 30 | 743 | 351247 | 3 | 110 | 1-1/8 | 800 |
| 30 | 744 | 351256 | 4 | 140 | 1-1/8 | 982 |
| 30 | 745 | 351265 | 5 | 170 | 1-1/8 | 1163 |
Metric Specifications
| Sheave Diameter (mm) | Block No. | Crown Block Stock No. | No. of Sheaves | Working Load Limit (t) | Standard Wire Rope Size (mm)* | Weight Each (kg) |
| 610 | 241 | 351158 | 1 | 13.5 | 22 | 91 |
| 610 | 242 | 351167 | 2 | 27 | 22 | 126 |
| 610 | 243 | 351176 | 3 | 40.5 | 22 | 170 |
| 610 | 731 | 351185 | 1 | 31.5 | 25 | 91 |
| 610 | 732 | 351194 | 2 | 67.5 | 25 | 159 |
| 610 | 733 | 351201 | 3 | 90 | 25 | 238 |
| 610 | 734 | 351210 | 4 | 113 | 25 | 327 |
| 762 | 741 | 351229 | 1 | 36 | 28 | 147 |
| 762 | 742 | 351238 | 2 | 72 | 28 | 254 |
| 762 | 743 | 351247 | 3 | 99 | 28 | 363 |
| 762 | 744 | 351256 | 4 | 126 | 28 | 445 |
| 762 | 745 | 351265 | 5 | 153 | 28 | 528 |
*May be furnished in other wire rope sizes.
Contact Us About This Product
If you wish to receive a quote for this product, please use the tab, this form is for general enquiries regarding this product only.
You can also request a quote through the pricing tab!
You can easily add more than one item to the Quote Request. This is highly recommended as we will be able to suit your needs much more efficiently.
Share this page!


