... are professional manufacturer for lots of pulleys, such as V belt pulley, timing belt pulley, 3V, 5V, ... pulleys, multi wedge pulleys. 3. V-belt pulley for taper bush, with solid hubs. Standard sheaves, taper bushes ... : Black oxide, phosphate, painted or passavited. 6. With standardized desigh and well equipped CNC machining systerms. Our ... 0.5°-031538°±0.5° Casting V-Belt Steel Pulleys with Black Coating