Browning BK34X1 Single Groove Belt Drive Sheave

The Browning BK34X1 is a finished-bore, cast-iron single-groove V-belt pulley (Type 2) with a 1" bore and a 3.55" outside diameter. Designed for 4L/A and 5L/B cross-section belts, it provides a 3" A-pitch diameter and a 3-1/2" B-pitch diameter, enabling compatibility with standard small-belt drives. The pulley features a 7/8" face width, a hub projection of 13/32", and an overall length (OAL) of 1-9/32" to suit compact assemblies. Cast in iron and delivered with a finished bore, it offers rigidity and wear resistance for demanding HVAC and industrial equipment belt-drive applications, including fans, blowers, pumps, and compact conveyors that use a 1" shaft. The BK34X1 is part of Browning’s V-Belt Drive line, designed to pair with matching Browning belts and drive components for reliable power transmission in space-constrained setups.