SKOOKUM HALF-SIDED BLOCKS

12.5 TON TO 17.5 TON WORKING LOAD LIMIT 400-SERIES

  • Work hardening manganese steel sheaves maximize wire rope and sheave life
  • Equipped with tapered roller bearings for long life in higher line speed applications
  • Recessed sheave prevents wire rope from binding between sheave and block side
  • Half side for light weight or full side design to maximize sheave protection
  • Versatile draw pin design allows for rapid reeving and exchange of attaching style
  • Rugged cast alloy steel sides for demanding environments

DIMENSIONS

Height Thickness Width Throat
Bottom
Inside
Throat
Width
Inside
Yoke
Width
Yoke Width Above Yoke Width Below Throat Height Below Throat Height Above Yoke Bar Top Height Yoke Bar Width
A B C D E Not Shown G Not Shown J K L M
HALF SIDED BLOCK
18.50 5.50 11.00 1.75 2.75 1.75 2.75 2.75 4.50 2.50 1.50 1.25
21.00 6.25 12.50 2.00 3.00 2.38 3.00 3.00 4.75 2.50 1.75 1.63
23.00 6.25 15.00 2.00 3.00 3.38 3.00 3.00 4.75 2.50 1.75 1.63
25.00 6.25 17.00 2.00 3.00 2.38 3.00 3.00 4.75 2.50 1.75 1.63
27.00 6.25 19.00 2.00 3.00 2.38 3.00 3.00 4.75 2.50 1.75 1.63
FULL SIDED BLOCK
25.00 6.25 15.00 2.00 3.00 2.38 3.00 3.00 4.75 2.50 1.75 1.63
27.00 6.25 17.00 2.00 3.00 2.38 3.00 3.00 4.75 2.50 1.75 1.63

 

SPECIFICATIONS

Model Sheave Diam Bearing Regular Yoke Part # Swivel Shackle Part # Wire Rope Min Wire Rope Max WLL
(tons)
Regular Yoke Weight Swivel
Shakle
Weight
Sheave # Draw Pin
HALF SIDED BLOCK
410-A 10″ TRB 553303 553302 5/8 3/4 12.50 48.00 55.00 536703 551422
412-A 12″ TRB 558203 558202 3/4 7/8 17.50 72.00 81.15 537103 555501
414-A 14″ TRB 558303 558302 3/4 7/8 17.50 95.75 104.90 537303 555501
416-A 16″ TRB 558403 558402 3/4 7/8 17.50 97.00 106.15 537503 555501
418-A 18″ TRB 558503 558502 7/8 1 17.50 108.00 117.15 537703 555501
FULL SIDED BLOCK
414-T 14″ TRB 573403 573402 7/8 1 17.50 97.00 106.15 537303 555501
416-T 16″ TRB 573503 573502 3/4 7/8 17.50 107.00 116.15 537503 555501

 

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