CMI, 4" x 5/8" Double Aluminum Sheave Stainless Sideplates Bushing
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4" x 5/8" (101 x 76 mm) double pulley with an aluminum sheave, stainless steel side plates and a bronze bushing. A bushing spreads the load over a larger area of the axle, sliding the load around the pulley. This results in greater transfer and very little wear and longer life. However, the greater area in contact results in increased friction, decreasing efficiency. Min breaking strength 25,000 lbf. (111.2 kN). Weight 64 oz. (1,816 g) Made in the U.S.A.