Browning 3693884 Qd Bushed V Belt Sheave 2 Groove

Product Description

The BROWNING 3693884 is a two-groove, quick-disconnect (QD) bushed V-belt sheave designed for power transmission applications in HVAC, industrial, and mechanical drive systems. It features a 4.88-inch outside diameter and accepts bore diameters ranging from 5/8 inch to 2-1/4 inch through a B-style QD bushing, which is sold separately. The sheave accommodates A, B, and 5V cross-section belts, with pitch diameters of 4.2 inches, 4.6 inches, and 4.7 inches respectively. At 3.2 pounds, it is a compact, durable component suited for blower and fan drive assemblies commonly found in air handling and refrigeration equipment.

This sheave is used in belt-driven blower and fan assemblies across residential and commercial HVAC systems, as well as general industrial drive applications. It is appropriate wherever a two-groove QD sheave is required for A, B, or 5V belt configurations. The QD bushing interface allows for fast installation and removal without damage to the shaft, making it a practical choice for service technicians and mechanical contractors performing drive replacements or system retrofits.

Key Features

• Two-groove design supports dual-belt drive configurations for improved load distribution
• QD (quick-disconnect) B-style bushing mount allows shaft installation and removal without special pullers
• Compatible with A, B, and 5V cross-section V-belts
• Bore range of 5/8 inch to 2-1/4 inch accommodates a wide variety of shaft sizes
• 4.88-inch outside diameter suits compact blower and fan drive assemblies
• Lightweight at 3.2 pounds, reducing overhung load on motor and blower shafts

Compatibility

Designed as an OEM-style replacement or upgrade sheave for two-groove V-belt drive systems using A, B, or 5V belt cross-sections with a B-style QD bushing interface. No specific system model compatibility data was provided in the product record.

Installation Notes

Installation should be performed by a qualified HVAC technician or mechanical contractor. Disconnect and lock out all power to the drive system before removing or installing sheaves. The QD bushing must be ordered and installed separately; confirm shaft diameter falls within the 5/8-inch to 2-1/4-inch bore range before ordering. After installation, inspect belt tension and sheave alignment per the belt manufacturer's recommended practices before returning the system to service.