... lock pulleys8) SheavesV-belts: SPZ, SPA, SPB, SPC; A, B, C, Z, wrapped V-belts, raw-edge V-belts, cogged V-belts ... b) Adjustable speed V-belt pulleys and variable speed pulleys c) Flat belt pulleys and conveyor belt pulleys2) American standard: a ... , 5V, 8V b) Sheaves for QD bushings: 3V, 5V, 8V c) Sheaves for split taper bushings: 3V, 5V, 8V d) Sheaves ...