Browning 3693801 Qd Bushed V Belt Sheave 1 Groove

Product Description

The BROWNING 3693801 is a single-groove, Quick Detachable (QD) bushed V belt sheave designed for use in belt-driven mechanical power transmission systems. With an outside diameter of 13.88 inches and a bore range of 5/8 inch to 2-1/4 inch, this sheave accommodates a wide range of shaft sizes through a standard B-style QD bushing. The 5V belt pitch diameter is 13.7 inches, making it sized for 5V cross-section belts commonly found on HVAC fan drives, industrial blowers, pumps, and air handling equipment. Licensed HVAC technicians and mechanical contractors routinely specify this type of sheave for variable-speed or fixed-speed belt drive configurations in commercial and industrial applications.

This sheave is suited for single-belt drive systems in commercial HVAC, ventilation, and general industrial power transmission setups. The QD bushing design allows straightforward installation and removal without specialized tooling, reducing downtime during service calls. It is appropriate for use in rooftop units, air handling units, centrifugal fans, and pump drive assemblies where a 5V or A or B cross-section belt is called for. The wide bore range makes it adaptable across multiple shaft sizes without requiring a custom machined bore.

Key Features

• Single groove design for straightforward single-belt drive configurations
• Outside diameter of 13.88 inches suits large-diameter, low-speed drive applications
• Bore range of 5/8 inch to 2-1/4 inch accommodates a wide variety of shaft sizes via B-style QD bushing
• 5V belt pitch diameter of 13.7 inches for compatibility with 5V cross-section belts
• QD bushing mount enables fast installation and removal without press-fit procedures
• B-style bushing is a widely stocked standard size, simplifying field sourcing

Compatibility

Designed as an OEM-style replacement or new-installation sheave for single-belt, B-style QD bushed V belt drive systems. Specific model compatibility depends on the bushing size and shaft diameter selected for the application.

Installation Notes

Installation should be performed by a qualified mechanical or HVAC technician familiar with belt drive systems. Disengage and lock out all power to the drive system before removing or installing the sheave. Ensure the mating QD bushing is the correct B-style and that the bore matches the shaft diameter before assembly. After installation, verify belt alignment and tension according to the belt manufacturer's guidelines before returning the system to service.