... standard pulleys: SPZ/SPA/SPB/SPC 3.MPTA standard pulley 4.OEM allowed Introduction:1. We are professional ... lots of pulleys, such as V belt pulley, timing belt pulley, 3V, 5V, BV pulley and so on. 2. Pilot bore, ... ), adjustable pulleys, multi wedge pulleys. 3. V-belt pulley for taper bush, with solid hubs. Standard sheaves, taper ... 0.5°-031538°±0.5° Casting V-Belt Steel Pulleys with Black Coating