Browning 3694536 Qd Bushed V Belt Sheave 4 Groove

Product Description

The BROWNING 3694536 is a four-groove, Quick Detachable (QD) bushed V-belt sheave designed for industrial and mechanical drive applications. With an outside diameter of 6.68 inches and a bore range of 5/8 inch to 2-1/4 inches, this sheave accommodates a variety of shaft sizes through its B-style QD bushing system. The belt pitch A diameter is 6.0 inches, the belt pitch B diameter is 6.4 inches, and the belt pitch 5V diameter is 6.5 inches. It is installed by millwrights, HVAC mechanics, and industrial maintenance technicians on blower, fan, and pump drive assemblies where reliable belt-and-sheave power transmission is required.

This sheave is suited for use in commercial and light industrial settings, including rooftop HVAC units, air handling units, centrifugal fans, and belt-driven pump systems. The QD bushing mount makes it practical for installations where shaft alignment and field replacement need to be completed efficiently. The four-groove configuration supports multi-belt drive setups that distribute load across the drive assembly and reduce belt wear over time.

Key Features

• Four-groove design supports multi-belt V-belt drive configurations
• Outside diameter of 6.68 inches with a belt pitch 5V diameter of 6.5 inches
• Bore range from 5/8 inch to 2-1/4 inches via B-style QD bushing
• Quick Detachable (QD) bushing system allows field mounting and removal without special tooling
• Compatible with belt pitch A, B, and 5V cross-sections based on pitch diameter specs
• Weighs 12.5 pounds, appropriate for standard shaft-mounted sheave hardware

Compatibility

Designed as an OEM-style replacement or direct-fit sheave for belt-driven fan and blower assemblies using B-style QD bushings and A, B, or 5V cross-section V-belts with a 6.5-inch pitch diameter requirement.

Installation Notes

Installation should be performed by a qualified millwright or mechanical technician. De-energize and lock out the drive system completely before removing or mounting any sheave. The QD bushing should be seated and torqued per the bushing manufacturer's fastener specifications using calibrated hand tools. Verify belt tension and sheave alignment with a straightedge or laser alignment tool after installation to prevent premature belt and bearing wear.