... pulley Specifications 1) European standard A) V-belt pulleys for taper bushings SPZ, SPA, SPB, SPC; Up to ... 3V, 5V, 8V B) Sheaves for QD bushings 3V, 5V, 8V C) Sheaves for split taper bushings 3V, 5V, 8V ... D) Sheaves for 3L, 4L or A, ... Bore pilot bore, finish bore, taper bore, bore for QD bushing 4) Surface finish paint, phosphate, zinc ...