Browning 3694395 Qd Bushed V Belt Sheave 3 Groove

Product Description

The BROWNING 3694395 is a three-groove, quick-detachable (QD) bushed V-belt sheave designed for industrial and commercial HVAC drive systems. It accepts 5V, A, and B series V-belts and features an outside diameter of 18.68 inches with a belt pitch diameter of 18.5 inches for 5V belts. The bore range spans 5/8 inch to 2-1/4 inch, accommodating a wide range of shaft sizes when used with a B-style QD bushing. Cast iron construction provides the durability and balance required for continuous-duty fan and blower drive applications. Licensed HVAC technicians and mechanical contractors typically handle installation on air handling units, rooftop units, and centrifugal fans.

This sheave is suited for three-belt drive configurations in commercial HVAC systems, industrial blowers, and heavy-duty fan assemblies where 5V, A, or B series belts are specified. The QD bushing design speeds up installation and removal during routine maintenance and belt replacement. It is a direct fit for applications requiring an 18.68-inch outside diameter sheave with a B-style bushing mount.

Key Features

• Three-groove design accepts 5V, A, and B series V-belts
• Outside diameter of 18.68 inches for standard drive sizing
• Belt pitch diameter of 18.5 inches (5V), 18.4 inches (B), and 18.0 inches (A)
• Bore range of 5/8 inch to 2-1/4 inch via B-style QD bushing
• Cast iron construction for balance and long service life in continuous-duty drives
• Quick-detachable bushing mount simplifies installation and belt changeouts

Compatibility

Designed for use with 5V, A, and B series V-belts on commercial HVAC air handlers, blowers, and industrial fan drive systems requiring a B-style QD bushing and an 18.68-inch outside diameter sheave.

Installation Notes

Installation should be performed by a qualified HVAC technician or mechanical contractor. De-energize and lock out the drive system before removing or installing any sheave or bushing. Ensure the QD bushing is properly seated and fasteners are evenly tightened in the sequence specified by the bushing manufacturer before tensioning belts. Verify sheave alignment with a straightedge or laser alignment tool to prevent premature belt and bearing wear.