Browning 3694387 Qd Bushed V Belt Sheave 3 Groove

Product Description

The BROWNING 3694387 is a three-groove, QD bushed V belt sheave designed for industrial and HVAC power transmission applications. It features a 16.28-inch outside diameter and accepts bore sizes ranging from 5/8 inch to 2-1/4 inch, making it adaptable to a wide range of shaft configurations through a standard B-style QD bushing. The sheave is engineered for use with 5V profile belts, with a 5V belt pitch diameter of 16.1 inches. HVAC mechanics, millwrights, and industrial maintenance technicians install this sheave on belt-driven air handling units, blowers, fans, and compressor systems where variable speed ratios or multi-belt drive arrangements are required.

This sheave is suited for three-belt drive configurations in commercial and industrial settings. It is commonly installed on centrifugal fans, forward-curved blowers, and other rotating equipment where 5V belt drives handle moderate to high torque loads. The QD bushing interface simplifies installation and removal without the need for special pullers, making it practical for field service on rooftop units, air handling units, and large packaged HVAC equipment. Its bore range accommodates most standard motor and blower shaft sizes encountered in commercial mechanical rooms and industrial facilities.

Key Features

• Three-groove design supports multi-belt drive configurations for higher torque capacity
• 16.28-inch outside diameter with a 5V belt pitch diameter of 16.1 inches
• Bore range from 5/8 inch to 2-1/4 inch via B-style QD bushing for shaft flexibility
• QD bushing interface allows fast, tool-accessible installation and removal in the field
• Compatible with A, B, and 5V cross-section belts based on listed pitch diameters

Compatibility

Designed for use with 5V cross-section V belts in three-groove drive configurations. Accepts B-style QD bushings to fit shafts from 5/8 inch to 2-1/4 inch in diameter. Suitable as an OEM-style replacement or new installation sheave on belt-driven fans, blowers, and HVAC air handling equipment.

Installation Notes

Installation should be performed by a qualified millwright, HVAC mechanic, or industrial maintenance technician. Disconnect and lock out all electrical power to the driven equipment before mounting or removing the sheave. Ensure the correct B-style QD bushing is selected separately to match the shaft diameter. Verify sheave alignment with a straightedge or laser alignment tool before tensioning belts, and inspect belt tension and sheave alignment after the first few hours of operation.