Browning 3694296 Qd Bushed V Belt Sheave 3 Groove

Product Description

The BROWNING 3694296 is a three-groove, QD bushed V belt sheave designed for industrial and commercial HVAC drive applications. It features an outside diameter of 7.68 inches and accepts bore diameters from 5/8 inch up to 2-1/4 inches, accommodating a wide range of shaft sizes. The sheave uses a B-style QD bushing for fast, precise mounting and removal without special tooling. A belt pitch A diameter of 7.0 inches and a belt pitch 5V diameter of 7.5 inches make it compatible with both classical and 5V wedge belt cross-sections. Licensed HVAC and mechanical technicians install this component as part of blower and fan drive assemblies in air-handling units, rooftop units, and other belt-driven equipment.

This sheave is suited for belt-driven blower systems found in commercial and light-industrial HVAC equipment. The three-groove configuration supports multi-belt drive setups that require higher torque capacity or redundancy. Its QD bushing interface allows field adjustment of belt tension and sheave alignment during installation or routine maintenance, making it a practical choice for service technicians working on fan and blower drive trains where downtime must be minimized.

Key Features

• Three grooves accommodate multi-belt drive configurations for increased torque capacity
• QD bushing style B allows tool-friendly installation and removal on the shaft
• Wide bore range of 5/8 inch to 2-1/4 inches fits a variety of motor and blower shaft diameters
• Compatible with classical A/B cross-section belts and 5V wedge belts
• 7.68 inch outside diameter suits standard HVAC fan and blower drive geometries
• Weighs 14.48 pounds, indicating heavy-duty cast construction for long service life

Compatibility

Designed as an OEM-style replacement or upgrade sheave for belt-driven fan and blower assemblies using B-style QD bushing interfaces and A, B, or 5V cross-section belts in commercial HVAC drive systems.

Installation Notes

Installation should be performed by a qualified mechanical or HVAC technician following applicable OSHA lockout/tagout procedures — disconnect and de-energize all power to the drive system before removing or installing the sheave. The QD bushing must be properly seated and fastened to the manufacturer torque sequence before restoring power and checking belt tension. Verify belt alignment across all three grooves using a straightedge or laser alignment tool to prevent premature belt and bearing wear. Consult the bushing manufacturer installation guide for correct fastener engagement and sequence.