Browning 3694577 Qd Bushed V Belt Sheave 4 Groove

Product Description

The BROWNING 3694577 is a four-groove, Quick Detachable (QD) bushed V belt sheave designed for industrial and mechanical drive applications. It accepts standard A, B, and 5V cross-section belts and features an outside diameter of 7.68 inches with a belt pitch diameter of 7.5 inches for 5V belts. The B-style bushing mount allows bore sizing from 5/8 inch up to 2-1/4 inch, accommodating a wide range of shaft diameters without requiring a dedicated bored-to-size sheave. At 16.35 pounds, this is a robust cast component suited for HVAC blower assemblies, commercial air handlers, and general power transmission systems. Installation is performed by qualified mechanics or HVAC technicians.

This sheave is well suited for multi-belt drive configurations in commercial and industrial equipment where consistent belt tension and alignment across four grooves is critical. Typical applications include centrifugal fans, blowers, compressors, and pump drives. The QD bushing system allows for straightforward field installation and removal without specialized tooling, making it practical for routine maintenance and drive system retrofits. Compatible with standard A, B, and 5V section V belts running on matched four-groove drive systems.

Key Features

• Four-groove design supports multi-belt drive configurations for higher torque transmission
• Quick Detachable B-style bushing accommodates bore diameters from 5/8 inch to 2-1/4 inch
• 7.68 inch outside diameter with 7.5 inch 5V belt pitch diameter
• Compatible with A, B, and 5V cross-section V belts
• Heavy cast construction at 16.35 pounds for durability in continuous-duty applications
• QD bushing mount simplifies field installation and removal during maintenance

Compatibility

Designed as an OEM-style replacement or upgrade sheave for four-groove V belt drive systems using A, B, or 5V section belts with shaft diameters between 5/8 inch and 2-1/4 inch. Accepts B-style QD bushings.

Installation Notes

Installation should be performed by a qualified mechanic or HVAC technician. Disconnect and lock out all power to the drive system before handling sheaves or belts, per OSHA lockout/tagout procedures. Verify shaft diameter falls within the 5/8 inch to 2-1/4 inch bore range before ordering the appropriate QD bushing. After mounting, check sheave alignment with a straightedge and set belt tension according to belt manufacturer specifications before returning the drive to service.