Ideal Steel Blocks
for
Manila Rope

Block Size Diameter Rope Sheave Size Weight Working Load Limit
O.D. Rim Thickness Center Pin Dia. Single Double Triple Single Double Triple
3" 3/8" 1-3/4" 1/2" 3/8" 1 lb. 1-1/2 lbs. 2 lbs. 300 lbs. 400 lbs. 600 lbs.
4" 1/2" 2-1/4" 5/8" 3/8" 2 lbs. 3 lbs. 3-1/2 lbs. 500 lbs. 600 lbs. 900 lbs.
5" 5/8" 3" 3/4" 3/8" 2-1/2 lbs. 3-1/2 lbs. 5 lbs. 700 lbs. 900 lbs. 1500 lbs.
6" 3/4" 3-1/2" 1" 1/2" 3-1/2 lbs. 5-1/2 lbs. 7 lbs. 1200 lbs. 1600 lbs. 2000 lbs.
8" 1" 4-3/4" 1-1/8" 5/8" 4-3/4 lbs. 11-1/2 lbs. 15 lbs. 1800 lbs. 2500 lbs. 3200 lbs.

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