Sheave: sheave wheel assembly. Steel rim not have scarring, crack, folding, slag and 1600 tiered upgrade sheave, rope groove surface should be smooth rim joints each segment should be flat to heaven wheel manufacturer 1600, the gap between the end face It should be less than 2mm. When mounted riveted to enhance day 1600 round of plant, its combination of surface deburring and rust it must be treated. Mine Shaft Derrick Top adjust the direction of movement of the fixed pulley rope, he carries the cage, bucket or skip Shaft weight, but also often seen as a sign of mine. Mine shaft sinking winch sheave according to performance into Single sheave and sheave two-slot, single slot sheave which has seven-slot sheave dozens.