Browning 3693751 Qd Bushed V-belt Sheave 1 Groove 8.88 in Od

Product Description

The BROWNING 3693751 is a single-groove, Quick-Detachable (QD) bushed V-belt sheave designed for industrial and commercial mechanical drive applications. It accepts 5V, A, and B cross-section V-belts and accommodates bore diameters from 5/8 inch to 2-1/4 inches via a B-style QD bushing, sold separately. The outside diameter measures 8.88 inches, with a belt pitch diameter of 8.7 inches for 5V belts, 8.2 inches for A belts, and 8.6 inches for B belts. Cast iron construction provides the durability needed for continuous-duty fan, blower, pump, and compressor drive systems. HVAC mechanics, millwrights, and industrial maintenance technicians are the primary installers.

This sheave is well-suited for belt-driven HVAC equipment including supply and return air fans, condenser fans, and cooling tower blowers, as well as pump and compressor drives in light industrial settings. The QD bushing system allows the sheave to be mounted on a wide range of shaft diameters within the 5/8 to 2-1/4 inch bore range, making it a flexible replacement or retrofit component. Residential and commercial mechanical rooms are common installation environments.

Key Features

• Single-groove design sized for 5V, A, and B cross-section V-belts
• Outside diameter of 8.88 inches; belt pitch diameter of 8.7 inches for 5V belts
• QD bushing mount with B-style bushing bore range from 5/8 inch to 2-1/4 inches
• Cast iron construction for durability in continuous-duty drive applications
• Interchangeable with standard B-style QD bushing components

Compatibility

Designed as an OEM-style replacement or retrofit sheave for belt-driven fan, blower, and pump assemblies using 5V, A, or B cross-section V-belts with a B-style QD bushing.

Installation Notes

Installation should be performed by a qualified HVAC technician or millwright. Disconnect and lock out all power to the drive system before removing or installing any sheave or bushing components. The QD bushing must be sourced and installed separately per the bushing manufacturer specifications. Verify belt tension and sheave alignment after installation to prevent premature belt and bearing wear.