Browning 3694007 Qd Bushed V Belt Sheave 2 Groove 7.28 in Od

Product Description

The BROWNING 3694007 is a two-groove, Quick Detachable (QD) bushed V-belt sheave designed for industrial and HVAC blower drive applications. Manufactured from iron, this sheave accepts 5V, A, and B cross-section V-belts and mounts via a B-style QD bushing for fast, precise installation and removal without special tooling. The outside diameter measures 7.28 inches, with a belt pitch diameter of 7.1 inches for 5V belts, 7.0 inches for B belts, and 6.6 inches for A belts. The bore range spans 5/8 inch minimum to 2-1/4 inch maximum, covering a wide range of shaft sizes found in fans, blowers, and centrifugal equipment. The unit weighs 11.25 pounds.

This sheave is suited for two-belt drive systems in commercial and industrial settings, including HVAC air-handling units, supply and exhaust fans, compressors, and general power-transmission equipment. The QD bushing design is common in field-replaceable belt drive assemblies where minimal downtime during sheave swaps is required. Mechanical contractors, HVAC technicians, and industrial maintenance personnel typically handle installation of this component in belt-driven blower and fan systems.

Key Features

• Two-groove configuration supports dual V-belt drive setups for balanced load distribution
• Compatible with 5V, A, and B cross-section V-belts for application flexibility
• B-style QD bushing mount allows tool-accessible, concentric installation and quick removal
• Bore range of 5/8 inch to 2-1/4 inch accommodates a wide variety of shaft diameters
• Iron construction provides durability in continuous-duty drive applications
• 7.28 inch outside diameter and 7.1 inch 5V pitch diameter for accurate speed-ratio calculations

Compatibility

Designed as a QD bushed replacement sheave for two-groove V-belt drive systems using 5V, A, or B cross-section belts. Requires a separately sourced B-style QD bushing sized to the target shaft diameter within the 5/8 inch to 2-1/4 inch bore range.

Installation Notes

Installation and removal should be performed by a qualified millwright, mechanical contractor, or HVAC technician. De-energize and lock out the drive motor before beginning work, following NFPA 70E lockout/tagout procedures. The QD bushing must be installed per manufacturer torque sequences to ensure concentricity and prevent shaft damage. Verify belt tension and sheave alignment with a straightedge or laser tool after mounting to avoid premature belt and bearing wear.