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4-5/8 in. sheave, up to 3/4 in. rope capacity, weighs 7.7 lbs., 4.4 ton working load limit. Green sheave (3/4 in. rope capacity) for easy identification. Spring lock blocks are popular among riggers for their high strength-to-weight ratio and quick-twist rope access. Solid aluminum-alloy cheek plates, bushing, and sheave are supported by stainless-steel axles. For those concerned about aluminum not wstanding the punishment of steel, we have no record of a fracture complaint in 3 years of production. Spring lock blocks have broad cheek plates to protect running lines, and large sheaves to minimize bend in rigging lines (providing 4:1 up to 9:1 ratios).
Specification | Description |
---|---|
Brand | ISC |
Country of Origin | Imported |
Compatible Rope Diameter | 0.75 in. |
Compatible Rope Type | Rope |
Finish | Aluminum |
Package Quantity | 1 |
Primary Material | Aluminum |
Product Weight | 8.5 lb. |
Product Width | 7.4 in. |
Warranty | None |
Manufacturer Part Number | 21862 |