Browning 3693686 Qd Bushed V Belt Sheave 1 Groove

Product Description

The BROWNING 3693686 is a Quick Detachable (QD) bushed V-belt sheave designed for single-groove power transmission applications. It accepts standard A, B, and 5V belt profiles and fits a wide bore range from 5/8 inch to 2-1/4 inches, accommodating a variety of shaft sizes without requiring a separate custom bore. The outside diameter measures 6.48 inches, with a 5V belt pitch diameter of 6.3 inches. This sheave is mounted via a B-style QD bushing, which allows for fast, secure installation and removal. It is a standard catalog component used by HVAC, industrial, and mechanical contractors in belt-driven fan, blower, and pump drive assemblies.

This sheave is suited for residential and commercial belt-drive systems where a single-groove V-belt drives a fan wheel, blower, or pump. Common applications include air handling units, centrifugal blowers, and belt-driven pump systems. The broad bore diameter range makes it adaptable across many shaft configurations encountered in the field. Installers working with replacement drives on rooftop units, air handlers, or industrial blowers will find this sheave a direct-fit option when the B-style QD bushing mount is already in use or being retrofitted.

Key Features

• Single-groove design accepts A, B, and 5V V-belt profiles
• Outside diameter of 6.48 inches with a 5V belt pitch diameter of 6.3 inches
• Bore range from 5/8 inch to 2-1/4 inches for broad shaft compatibility
• B-style QD bushing mount allows tool-accessible installation and clean removal
• Standardized UNSPSC classification 31171804 for procurement and cataloging

Compatibility

Designed as an OEM-style replacement or direct-install sheave for single-groove V-belt drive assemblies using B-style QD bushings. Compatible with A, B, and 5V belt cross-sections. No specific model compatibility was stated in the product data.

Installation Notes

Installation should be performed by a qualified mechanic or HVAC technician. Disconnect and lock out all power to the drive system before removing or installing the sheave. The QD bushing must be procured separately and torqued to the bushing manufacturer specifications. Verify belt tension and alignment after installation before returning the unit to service.