HARDWARE

Crosby 431 Snatch Blocks: Unit of Measure - Each
Crosby M-491 Tower Derrick Hoist Block:
Unit of Measure - Each
05 - HARDWARE
ORDER CODE
WLL (tonnes)*
Sheave Dia.
(in.)
Bearing Code
Wire Rope
Size (mm)
Weight Each
(kg.)
165366 20 8 BB 26-28 39.5
165367 20 8 RB 26-28 39.5
165368 20 10 BB 26-28 45.8
165369 20 10 RB 26-28 45.8
165370 20 12 BB 26 52
165371 20 12 RB 26 52
165372 20 12 BB 28 52
165373 20 12 RB 28 52
165374 20 14 BB 26 61
165375 20 14 RB 26 61
165376 20 14 BB 28 61
165377 20 14 RB 28 61
165378 25 18 BB 26 118
165379 25 18 RB 26 118
165380 25 18 BB 28 118
165381 25 18 RB 28 118
165382 30 20 BB 28 181
165383 30 20 RB 28 181
165384 30 20 BB 32 181
165385 30 20 RB 32 181
165386 30 24 BB 28 215
165387 30 24 RB 28 215
165388 30 24 BB 32 215
165389 30 24 RB 32 215
• A wide variety of configurations:
• 4, 8, 12 or 15 metric ton capacity
• 10mm to 25mm wire line sizes
• Painted or Galvanized finish
• 203mm and 254mm blocks furnished with dual rated
wireline sheaves.
• Forged steel swivels, tees, yokes and shackles are
Quenched & Tempered.
• Sheave lubrication through center pin for easy maintenance.
• Design factor of 4 to 1
• All blocks 356mm and larger are furnished with McKissick ®
Roll Forged sheaves with fl ame hardened grooves.
• Recessed sideplate design reduces the gap between the
sheave rim and the sideplate, allowing the sheave assembly
to be captured in the block if loss of center pin occurs.
• Sealed tapered roller bearings extend the life of the center
pin and bearings, and allows for faster line speeds than
recommended with standard snatch blocks.
• Shackle fitting swivels for easy positioning.
• Suitable for hoisting personnel, contingent upon all
employees, including the winch operator, being trained to
follow any applicable Federal, local and industry standards.
• Tugger/Derrick applications: API RP54
• Tower applications: OSHA directive CPL 2-1.36
• Holes through side plates are available for secondary block
securement device.
• Manufactured by an API Q1 Certified facility
• Type Approval and certification in accordance with
ABS 2006 Steel Vessel Rules 1-1-17.7, and ABS Guide
for Certifi cation of Cranes.
• All sizes are RFID EQUIPPED.
ORDER CODE
WLL (tonnes)*
Sheave Dia.
(mm)
Wire Rope
Size (mm)
Weight Each
(kg.)
165407 4 203 10 - 13 16
165390 8 254 10 - 13 25
165391 8 254 13 - 14 25
165392 12 254 13 - 14 25
165393 12 356 16 43
165394 12 356 19 43
165395 15 406 22 68
165396 15 406 25 48
*Ultimate Load is 4 times the Working Load Limit
146
1300 722 999