Browning 3694643 Qd V Belt Sheave 4 Groove 13.88 in Od

Product Description

The BROWNING 3694643 is a four-groove, Quick Detachable (QD) bushed V belt sheave designed for industrial and commercial belt-drive applications. With a 13.88-inch outside diameter and a bore range of 5/8 inch to 2-1/4 inch, this sheave accepts a B-style QD bushing for secure, concentric mounting on drive shafts. It is compatible with 5V-profile V belts and carries a belt pitch diameter of 13.7 inches. At 35.65 pounds, this is a heavy-duty component suited to high-torque fan, blower, and pump drive systems. HVAC mechanics, millwrights, and industrial technicians are the typical installers.

This sheave is used in belt-drive systems where multiple belts are required to transmit higher loads, such as large commercial air handling units, industrial blowers, centrifugal pumps, and compressor drives. The four-groove configuration allows the use of matched 5V belt sets, distributing load evenly across the drive. The QD bushing system simplifies installation and removal without specialized tooling, making it well suited to scheduled maintenance environments where minimizing downtime is a priority.

Key Features

• Four-groove design accepts matched 5V V belt sets for high-load drive applications
• 13.88-inch outside diameter with a 13.7-inch belt pitch diameter for precise belt alignment
• Bore range of 5/8 inch to 2-1/4 inch accommodates a wide range of shaft sizes via B-style QD bushing
• QD bushing mount allows fast, tool-efficient installation and removal during service
• Heavyweight construction at 35.65 pounds for durability in demanding drive system environments

Compatibility

Designed for use with 5V-profile V belts in four-belt matched sets. Accepts B-style QD bushings. Bore diameter range of 5/8 inch to 2-1/4 inch makes it compatible with a variety of standard drive shaft sizes found in commercial HVAC, blower, and pump applications.

Installation Notes

Installation and removal should be performed by a qualified mechanic or HVAC technician following the equipment manufacturer lockout/tagout procedures before work begins. Confirm the correct B-style QD bushing is sourced separately and sized to the actual shaft diameter before ordering. Belt tension should be set according to the belt manufacturer specification after sheave installation. Verify sheave alignment with a straightedge or laser alignment tool before returning the drive system to service.