Casting Iron SPA, Spb, Spc, Spz Pulley

 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:     a) V-belt pulleys for taper bushings: SPA, SPB, SPC,SPZ,groove up to 10 b) Adjustable speed V-belt pulleys and variable speed pulleys    c) Flat belt pulleys and conveyor belt pulleys American standard:    a) Sheaves for taper bushings: 3V, 5V, 8V     b) Sheaves for QD bushings: 3V, 5V, 8V    c) Sheaves for split taper bushings: 3V, 5V, 8V