The Browning BK40 V-Belt Pulley is a 3/4-inch-bore, single-groove BK-series sheave designed for belt-driven power transfer in industrial systems. Made from cast iron, it features an outside diameter of approximately 3.95 inches, a single groove, and a 3/16" x 3/32" keyway with set screws included for a fixed bore shaft mounting. It supports A, AX, B, BX, 4L, and 5L V-belts and is commonly used on electric motor shafts to drive fans, pumps, compressors, conveyors, HVAC equipment, and other light-to-medium duty machinery in industrial and commercial environments.
