... lock pulleys8) SheavesV-belts: SPZ, SPA, SPB, SPC; A, B, C, Z, wrapped V-belts, raw-edge V-belts, cogged ... : SPZ, SPA, SPB, SPC; up to 10 grooves b) Adjustable speed V-belt pulleys and variable speed pulleys c ... standard: a) Sheaves for taper bushings: 3V, 5V, 8V b) Sheaves for QD bushings: 3V, 5V, 8V c) Sheaves ... 5V, 8V d) Sheaves for 3L, 4L or A, and 5L or B belts: AK, AKH, 2AK, 2AKH, BK, BKH,2BK, ...