4" x 5/8" (101 x 16 mm) triple sheave pulley with aluminum sheaves, stainless steel side plates and sealed needle bearings. Bearings decrease the amount of surface area in contact with the axle, which creates a more efficient transfer. By rolling the load around the axle, load on the transfer point is increased, which results in faster wear, shortening the life of the pulley. Min. breaking strength 30,000 lbf. (133.4 kN). Weight 84 oz. (2,400 g). Made in the U.S.A.
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