Crosby
Design: Side plates are designed to eliminate possibility of rope jamming. Can be furnished with bronze bushings or sealed roller bearings. Opening feature permits insertion of rope while block is suspended from gin-pole. Pressure lube fittings. Blocks furnished with dual rated wireline sheaves.



  • Material: Side plates are forged alloy steel and heat treated. Shackle and yoke are forged and heat treated steel.
  • Marking: Type, WLL, wire and sheave dia.
  • Finish: Blue painted
  • Safety factor: 4:1
Crosby 421
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WLL
ton
Bearing Code Sheave Æ Wire Rope Size Æ Weight
kg
CAD
12 BB 6 19-22 21.8
12 RB 6 19-22 21.8
15 BB 8 19-22 25.9
15 RB 8 19-22 25.9
15 BB 10 19-22 31.3
15 RB 10 19-22 31.3

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