zinc die casting pulley

1) European standard:    
 
a) V-belts pulley for taper bushing: SPZ, SPA, SPB, SPC; up to 10 grooves.   
b) Adjustable speed V-belt pulleys and variable speed pulleys.   
c) Flat belt pulleys and conveyor belt pulleys.
 
2) American standards:   
 
a) Sheave for taper bushing: 3V, 5V, 8V    
b) Sheaves for QD bushings: 3V, 5V, 8V   
c) Sheaves for split taper bushing: 3V, 5V, 8V  . 
d) Sheave for 3L, 4L or A, and 5L or B belts: AK, AKH, 2AK, 2AKH, BK, BKH,2BK, 2BKH, 3BK   
e) Adjustable sheave: poly V-pulley, multi-pitch H, L, J, K and M.
 

Made according to drawings and/or sample,OEM inquiries welcomed, especially for big pulley.
Material: 45C, cast iron, ductile iron, GG25, GGG40, nylon, aluminum, etc.
Surface treatment: Black oxide, phosphate, painted, Zinc plate or passavited.
Bore: pilot bore, finish bore, taper bore, bore for QD bushing
Inspection:Dynamic balance & Static balance test are available.With standardized desigh and well equipped CNC machining Systems.
Our pulleys have high Precision and good interchangeability.
Apply to mining machinery,petroleum machinery ETC.