... -belt pulley Specifications 1) European standard A) V-belt pulleys for taper bushings SPZ, SPA, SPB, SPC; Up to 10 grooves ... taper bushings 3V, 5V, 8V D) Sheaves for 3L, 4L or A, and 5L or B belts AK, AKH, 2AK, 2AKH, BK ... , aluminum and stainless steel 4) Surface finish black oxidized phosphate, anodized, zinc-plated 5) Standard toothed bars are also available. high quality auto pulley