Browning 3694494 Qd Bushed V Belt Sheave 4 Groove

Product Description

The BROWNING 3694494 is a four-groove, Quick Detachable (QD) bushed V belt sheave designed for industrial and commercial belt-drive systems. It accepts standard A, B, and 5V profile belts and accommodates bore diameters from 5/8 inch up to 2-1/4 inch via a Type B QD bushing, which is sold separately. The outside diameter measures 5.88 inches. At 9.55 pounds, this is a solid, production-grade sheave suited for fans, blowers, pumps, and compressors commonly found in HVAC and mechanical room installations. Licensed HVAC technicians and millwrights are the typical installers for this class of drive component.

This sheave is used in belt-drive applications requiring multiple V belt grooves to transmit higher torque loads across a single drive assembly. Four-groove configurations are common in commercial air handling units, large ventilation fans, and pump drives where redundant belt engagement reduces slippage and distributes load evenly. The QD bushing mount allows rapid sheave removal and reinstallation without special tooling, making it practical for scheduled maintenance on rooftop units and mechanical room equipment.

Key Features

• Four grooves accommodate A, B, and 5V profile V belts
• Quick Detachable (QD) Type B bushing style for tool-free removal and reinstallation
• Outside diameter of 5.88 inches suits common commercial drive configurations
• Bore range of 5/8 inch to 2-1/4 inch covers a wide range of shaft sizes
• Solid construction at 9.55 pounds for reliable, vibration-resistant operation

Compatibility

Designed as an OEM-style replacement or new-installation sheave for commercial belt-drive systems using Type B QD bushings and A, B, or 5V profile V belts. No specific equipment model compatibility was provided by the manufacturer for this part number.

Installation Notes

Installation is typically performed by a licensed HVAC technician or millwright. Disconnect and lock out all power to the drive system before removing or installing any sheave. The QD bushing must be ordered and installed separately — confirm bushing bore size matches the shaft diameter before assembly. Verify belt tension and sheave alignment per the drive manufacturer's specifications after installation to prevent premature belt and bearing wear.