Browning 3694254 3-groove Qd Bushed V-belt Sheave

Product Description

The BROWNING 3694254 is a three-groove, Quick Detachable (QD) bushed V-belt sheave designed for industrial and HVAC belt-drive applications. With an outside diameter of 6.68 inches and a bore range of 5/8 inch to 2-1/4 inch, this sheave accommodates a wide range of shaft sizes using a B-style QD bushing. It is compatible with A, B, and 5V belt cross-sections, making it versatile across common drive configurations. The sheave weighs 10.75 pounds and is suited for use in blower, fan, compressor, and pump drive assemblies. Licensed HVAC technicians and millwrights are the primary installers for this component type.

This sheave is used in belt-driven fan and blower systems found in commercial and residential HVAC equipment, industrial ventilation systems, and pump drive assemblies. The QD bushing design simplifies installation and removal without requiring the bushing and hub to be machined as a single unit. Three grooves allow multi-belt configurations to handle greater torque loads while distributing tension across the drive system. The bore range supports a broad selection of motor and drive shaft diameters common in trade applications.

Key Features

• Three-groove design supports multi-belt drive configurations for higher torque capacity
• QD (Quick Detachable) B-style bushing interface for fast installation and removal
• Outside diameter of 6.68 inches with a belt pitch diameter of 6.5 inches for 5V belts
• Bore range of 5/8 inch to 2-1/4 inch accommodates a wide variety of shaft sizes
• Compatible with A-section (6.0 inch pitch diameter) and B-section (6.4 inch pitch diameter) belt profiles
• Weighs 10.75 pounds, indicating robust cast construction suitable for continuous-duty drive service

Compatibility

Designed as an OEM-style replacement or new-installation sheave for belt-driven blower, fan, and pump assemblies that use B-style QD bushings and A, B, or 5V cross-section V-belts.

Installation Notes

Installation and removal should be performed by a qualified mechanic or licensed HVAC technician. Always de-energize and lock out the drive motor before servicing any sheave or belt component. The QD bushing must be correctly seated and fastened according to standard QD bushing procedures before applying belt tension. Verify sheave alignment with a straightedge or laser alignment tool to prevent premature belt and bearing wear.