 1.Material:Cast iron
 2.Process: sand mold casting,machining
 3.Bore: pilot bore, finished bore, taper bore, bore for QD bushing
 4.Surface finish: black oxide,paint, phosphating
 European standard:   Â
a)Â V-belt pulleys for taper bushings: SPA, SPB, SPC,SPZ,groove up to 10
b) Adjustable speed V-belt pulleys and variable speed pulleys  Â
c)Â Flat belt pulleys and conveyor belt pulleys
American standard:Â Â Â
a)Â Sheaves for taper bushings: 3V, 5V, 8VÂ Â Â Â
b)Â Sheaves for QD bushings: 3V, 5V, 8VÂ Â Â
c)Â Sheaves for split taper bushings: 3V, 5V, 8V Â Â 
 1.Material:Cast iron
 2.Process: sand mold casting,machining
 3.Bore: pilot bore, finished bore, taper bore, bore for QD bushing
 4.Surface finish: black oxide,paint, phosphating
 European standard:   Â
a)Â V-belt pulleys for taper bushings: SPA, SPB, SPC,SPZ,groove up to 10
b) Adjustable speed V-belt pulleys and variable speed pulleys  Â
c)Â Flat belt pulleys and conveyor belt pulleys
American standard:Â Â Â
a)Â Sheaves for taper bushings: 3V, 5V, 8VÂ Â Â Â
b)Â Sheaves for QD bushings: 3V, 5V, 8VÂ Â Â
c)Â Sheaves for split taper bushings: 3V, 5V, 8V Â Â
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