Browning 3694288 Qd Bushed V Belt Sheave 3 Groove 7.28 in

Product Description

The BROWNING 3694288 is a three-groove, Quick Detachable (QD) bushed V-belt sheave designed for power transmission applications in HVAC, industrial, and mechanical systems. It features an outside diameter of 7.28 inches and accepts bore sizes from 5/8 inch up to 2-1/4 inches through a B-style QD bushing, which is sold separately. The sheave is cast iron construction and is compatible with 5V, A, and B cross-section V-belts. It is installed by licensed HVAC technicians and mechanical contractors on blower assemblies, fan drives, and general power transmission setups where multi-belt torque loads require a robust, field-adjustable mount.

This sheave fits standard belt-driven blower and fan systems common in commercial and residential HVAC equipment, as well as light industrial machinery. The three-groove configuration allows the drive to handle higher torque loads by distributing tension across multiple belts simultaneously. The B-style QD bushing interface makes field installation and removal straightforward without requiring specialized tooling beyond standard hand tools. No specific compatible model numbers were provided by the manufacturer for this SKU.

Key Features

• Three grooves accommodate 5V, A, and B cross-section V-belts
• Outside diameter of 7.28 inches for standard drive configurations
• Bore range of 5/8 inch to 2-1/4 inches via B-style QD bushing
• Cast iron construction for durability in continuous-duty drive applications
• QD bushing interface allows rapid installation and removal in the field
• Belt pitch diameters: 7.1 inches for 5V, 7.0 inches for B, 6.6 inches for A

Compatibility

Designed as an OEM-style replacement or upgrade sheave for three-belt V-belt drive systems using 5V, A, or B cross-section belts with a B-style QD bushing. No specific equipment model numbers were provided in the product data.

Installation Notes

Installation should be performed by a qualified HVAC technician or mechanical contractor. Disconnect and lock out all power to the drive system before removing or installing the sheave. The B-style QD bushing must be sourced and installed separately; follow the bushing manufacturer torque sequence for the bushing cap screws. Verify belt tension and sheave alignment after installation before returning the system to service.