Browning 3693918 Qd Bushed V Belt Sheave 2 Groove

Product Description

The BROWNING 3693918 is a two-groove, Quick Detachable (QD) bushed V-belt sheave designed for industrial and commercial HVAC, refrigeration, and mechanical drive applications. Built from cast iron and accepting a Type B QD bushing, this sheave accommodates a bore range of 5/8 inch to 2-1/4 inches, making it adaptable to a wide variety of shaft sizes. The outside diameter measures 5.48 inches, with a 5V belt pitch diameter of 5.3 inches, an A-section pitch diameter of 4.8 inches, and a B-section pitch diameter of 5.2 inches. At 5.1 pounds, it is a solid, durable component suited for belt-drive systems requiring reliable power transmission across two grooves.

This sheave is commonly installed on fan and blower drives in commercial HVAC air handling units, rooftop units, and industrial ventilation systems. It is appropriate for use with 5V, A, and B section V-belts. The QD bushing design simplifies installation and removal, which reduces downtime during routine maintenance or belt replacement. HVAC mechanics, millwrights, and industrial maintenance technicians are the primary installers. Matching the correct bushing bore to the driven shaft diameter is essential before finalizing the installation.

Key Features

• Two-groove design supports parallel dual-belt drive configurations for balanced load transmission
• Compatible with 5V, A, and B section V-belts for broad application flexibility
• Quick Detachable Type B bushing style allows fast installation and removal without damaging the shaft
• Bore range of 5/8 inch to 2-1/4 inches fits a wide range of shaft sizes
• Cast iron construction provides durability in continuous-duty drive applications
• Outside diameter of 5.48 inches suits standard HVAC and industrial fan drive configurations

Compatibility

Designed as an OEM-style replacement or direct-fit sheave for two-groove V-belt drive systems using 5V, A, or B section belts with a Type B QD bushing.

Installation Notes

Installation should be performed by a qualified HVAC technician or millwright. Disconnect and lock out all power to the drive system before removing or installing the sheave. Select and install the correct Type B QD bushing to match the driven shaft diameter before mounting the sheave, and torque all bushing fasteners according to the bushing manufacturer specifications. Verify belt tension and sheave alignment with a straightedge or laser alignment tool after installation to prevent premature belt and bearing wear.