Sheave: sheave wheel assembly. Steel rim not have scarring, crack, folding, slag and stratification, rope groove surface should be smooth upgrade sheave 1600 factory, rim joints each segment should be flat to heaven wheel manufacturer 1600, between the end face the gap should be less than 2mm. Riveting equipment sales for 1600 to enhance the day time round, the bonding surface must be cleaned of burrs and rust treatment. Static balance test day round: The smooth by grinding the same diameter make two round slide, fixed in already leveling workbench, slide the axle spacing to ensure less than day long, and supported on two journal at the . The sheave has been fitted onto the shaft end slide. Since the center of gravity shifted from rotating so Tianlun. According to the calculation of the [P] approve block production value. The weights are spot-welded to the upper edge has rotated round stoppage at the day after.