Crosby McKissick 731, 732 Oilfield Crown Blocks - Range from 13,500kg to 170,000kg

Oilfield Servicing, Crown Blocks.

Model: 

McKissick 731, 732 / OCB-2535


  • 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.
Mckissick 731Mckissick 731 Mckissick 732
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.

Crosby-catalogue-page-number-342-349.pdf

Product Warnings

(approx. 0.5Mb)
crosby-catalogue-page-335.pdf

Crosby catalogue page 335

(approx. 0.2Mb)
Part N° Sheave Diameter (mm) Block No. No. of Sheaves Working Load Limit (t) Standard Wire Rope Size (mm)* Weight Each (kg) Guide Price Quantity
2535-T17758
351158
610 241 1 13.5 22 91 Quote Required
2535-T17759
351167
610 242 2 27 22 126 Quote Required
2535-T17760
351176
610 243 3 40.5 22 170 Quote Required
2535-T17761
351185
610 731 1 31.5 25 91 Quote Required
2535-T17762
351194
610 732 2 67.5 25 159 Quote Required
2535-T17763
351201
610 733 3 90 25 238 Quote Required
2535-T17764
351210
610 734 4 113 25 327 Quote Required
2535-T17765
351229
762 741 1 36 28 147 Quote Required
2535-T17766
351238
762 742 2 72 28 254 Quote Required
2535-T17767
351247
762 743 3 99 28 363 Quote Required
2535-T17768
351256
762 744 4 126 28 445 Quote Required
2535-T17769
351265
762 745 5 153 28 528 Quote Required
Pricing Currency: Not available at the moment. Add To Quote Request   ?  
  • 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.
Mckissick 731Mckissick 731 Mckissick 732
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.

Crosby-catalogue-page-number-342-349.pdf

Product Warnings

(approx. 0.5Mb)
crosby-catalogue-page-335.pdf

Crosby catalogue page 335

(approx. 0.2Mb)
Part N° Sheave Diameter (mm) Block No. No. of Sheaves Working Load Limit (t) Standard Wire Rope Size (mm)* Weight Each (kg) Guide Price Quantity
2535-T17758
351158
610 241 1 13.5 22 91 Quote Required
2535-T17759
351167
610 242 2 27 22 126 Quote Required
2535-T17760
351176
610 243 3 40.5 22 170 Quote Required
2535-T17761
351185
610 731 1 31.5 25 91 Quote Required
2535-T17762
351194
610 732 2 67.5 25 159 Quote Required
2535-T17763
351201
610 733 3 90 25 238 Quote Required
2535-T17764
351210
610 734 4 113 25 327 Quote Required
2535-T17765
351229
762 741 1 36 28 147 Quote Required
2535-T17766
351238
762 742 2 72 28 254 Quote Required
2535-T17767
351247
762 743 3 99 28 363 Quote Required
2535-T17768
351256
762 744 4 126 28 445 Quote Required
2535-T17769
351265
762 745 5 153 28 528 Quote Required
Pricing Currency: Not available at the moment. Add To Quote Request   ?  

Contact Us About This Product

LiftingSafety uses cookies to improve your user experience,
To accept this, please click the 'accept' button below.

Top