... pulley Specifications 1) European standard A) V-belt pulleys for taper bushings SPZ, SPA, SPB, SPC; Up to ... 2) American standard A) Sheaves for taper bushings 3V, 5V, 8V B) Sheaves for QD bushings 3V, 5V, 8V ... 3) Bore pilot bore, finish bore, taper bore, bore for QD bushing 4) Surface finish paint, phosphate, zinc plate ... 5) Standard toothed bars are also available. pulley-auto parts, machine parts