Browning 3693975 2-groove Qd V-belt Sheave 6.68 in Od

Product Description

The BROWNING 3693975 is a two-groove, quick-detachable (QD) bushed V-belt sheave designed for use with 5V, A, and B cross-section belts. The sheave features a 6.68-inch outside diameter with a 6.5-inch belt pitch diameter for 5V belts, a 6.0-inch pitch diameter for A belts, and a 6.4-inch pitch diameter for B belts. It accepts B-style QD bushings and accommodates bore diameters from 5/8 inch up to 2-1/4 inches, making it adaptable to a range of shaft sizes. Cast iron construction provides the durability required for continuous-duty HVAC, industrial fan, and pump drive applications. The part weighs 9.1 pounds.

This sheave is suited for residential and commercial HVAC systems, industrial blower assemblies, pump drives, and similar belt-driven equipment where a two-groove, QD-mounted configuration is specified. The quick-detachable bushing design simplifies installation and removal on the shaft without specialized pulling equipment. Applications typically include air handling units, centrifugal fans, and direct-replacement drive upgrades where 5V, A, or B belt sections are already in use.

Key Features

• Two grooves accept 5V, A, and B cross-section V-belts
• 6.68-inch outside diameter with a 6.5-inch 5V belt pitch diameter
• Bore range from 5/8 inch to 2-1/4 inches via B-style QD bushing
• Quick-detachable (QD) bushing mount for fast, secure shaft installation and removal
• Cast iron construction for durability in continuous-duty drive applications
• UNSPSC Code 31171804 for procurement and sourcing compatibility

Compatibility

Designed as an OEM-style replacement or upgrade sheave for two-groove V-belt drive systems using 5V, A, or B belt sections with B-style QD bushings. Bushing must be ordered separately.

Installation Notes

Installation and removal should be performed by a qualified mechanical or HVAC technician. De-energize and lock out the drive motor before servicing the belt drive assembly. The QD bushing must be properly seated and fastened to the specified torque range printed on the bushing flange before returning the drive to service. Inspect belt tension and sheave alignment with a straightedge after installation to prevent premature belt and bearing wear.