Browning Cast Iron 5 Groove, Split Taper Sheave. It uses A & B section belts and Q1 bushing (Bushing sold separately).
Incorporates Browning split taper bushing. The only bushing system that provides a true key-to-key drive to both the shaft and the hub. Combination groove permits running of A & B belts, thus providing a variety of different pitch diameters and horsepowers. Close grain cast iron allows sheaves to be machined to the closest tolerances possible.