Browning 1VP44-3 Pulley 4 Inch Bore Single Sheave

The Browning 1VP44-3/4 is a cast-iron, single-groove variable-pitch pulley from Browning’s Masterdrive VP series, designed for flexible belt drives without swapping pulleys. It supports 3L, 4L, 5L, A, and B belt sections in a single-groove configuration, allowing pitch adjustments within that belt family to optimize speed ratios and tension. The finished bore is 0.75 inches (3/4 in) and the outer diameter is 4.15 inches, with a keyed shaft interface for secure mounting. This VP-style pulley is built for reliable, durable service in light-to-moderate power transmission setups, where precise belt tension and spacing matter. Common applications include small conveyors, fans, and general machinery where Browning VP-series components are specified and where a compact, one-groove pulley with adjustable pitch can accommodate slight changes in belt length or drive ratio. Its cast-iron construction provides rigidity and wear resistance, making it a long-lasting choice for standard HVAC, workshop, and industrial equipment that uses narrow-belt drives in the 3L–B belt range.