Browning 3694635 Qd Bushed V-belt Sheave 4 Groove

Product Description

The BROWNING 3694635 is a four-groove, QD-bushed V-belt sheave designed for industrial drive systems requiring precise belt alignment and reliable power transmission. With an outside diameter of 12.68 inches and a belt pitch diameter of 12.5 inches for 5V cross-section belts, this sheave accommodates a bore range of 5/8 inch to 2-1/4 inches using a B-style QD bushing. At 28.9 pounds, it is built for demanding multi-belt drive configurations found in HVAC, fan, blower, and pump applications. Licensed tradespeople and mechanical contractors install this component as part of larger belt-drive assemblies.

This sheave is suited for commercial and industrial applications where four-groove belt drive setups are required to transmit higher loads than a single-belt configuration can handle. Typical installations include rooftop and commercial air handling unit fans, industrial blowers, centrifugal pumps, and motor-driven equipment requiring smooth, balanced power transfer. The QD bushing system allows straightforward bore sizing and secure shaft mounting across a range of shaft diameters within the specified bore range.

Key Features

• Four grooves for multi-belt 5V cross-section drive configurations
• Outside diameter of 12.68 inches with a 12.5-inch belt pitch diameter for 5V belts
• Bore range of 5/8 inch to 2-1/4 inches via B-style QD bushing
• QD bushing mount enables precise shaft fit and simplified installation or removal
• Also accommodates A-profile belts at 12.0-inch pitch diameter and B-profile belts at 12.4-inch pitch diameter
• UNSPSC Code 31171804 for procurement and catalog classification

Compatibility

Designed for use with 5V, A, and B cross-section V-belts and compatible with B-style QD bushings. Bore acceptance ranges from 5/8 inch to 2-1/4 inches. No specific equipment model compatibility was stated in available product data.

Installation Notes

Installation should be performed by a qualified millwright, mechanical contractor, or HVAC technician. De-energize and lock out the drive motor before mounting or removing the sheave. The QD bushing must be seated and torqued according to the bushing manufacturer specifications before the drive is returned to service. Verify belt tension and sheave alignment after installation to prevent premature belt and bearing wear.