Browning 3694676 Qd Bushed V-belt Sheave 4 Groove

Product Description

The BROWNING 3694676 is a four-groove, Quick Detachable (QD) bushed V-belt sheave designed for industrial and commercial HVAC drive systems. With an outside diameter of 18.68 inches and a 5V belt pitch diameter of 18.5 inches, this sheave handles demanding belt-drive applications where precise speed ratios and reliable power transmission are required. The QD bushing system allows fast installation and removal without the need for a press or puller, making it a preferred choice for mechanical and HVAC technicians working on air handler, fan, and blower drive assemblies.

This sheave is suited for commercial HVAC blower systems, industrial fan drives, and other belt-driven mechanical equipment using 5V-section V-belts. The four-groove configuration supports multi-belt drive arrangements that distribute load and increase torque capacity. Bore diameter acceptance ranges from 5/8 inch to 2-1/4 inch, accommodating a range of shaft sizes commonly found in commercial air handling units and centrifugal fan assemblies. Bushing Style B is required for installation.

Key Features

• Four grooves for multi-belt 5V-section V-belt drive configurations
• QD (Quick Detachable) bushing mount for tool-efficient installation and removal
• Outside diameter of 18.68 inches with a 5V belt pitch diameter of 18.5 inches
• Bore diameter range of 5/8 inch to 2-1/4 inch fits a wide range of shaft sizes
• Bushing Style B compatibility for standardized mounting hardware
• Weighs 50.66 pounds, suited for heavy-duty commercial drive applications

Compatibility

Designed for use with 5V-section V-belts in four-groove drive configurations. Requires a Bushing Style B QD bushing (sold separately) to complete the installation. Bore acceptance range of 5/8 inch to 2-1/4 inch makes this sheave compatible with a broad range of commercial fan and blower shaft diameters.

Installation Notes

Installation should be performed by a qualified mechanic or HVAC technician. De-energize and lock out all power to the drive system before beginning work per LOTO procedures. The QD bushing must be sourced separately and matched to the shaft diameter before mounting the sheave. Verify belt tension and sheave alignment with a straightedge or laser alignment tool after installation to prevent premature belt and bearing wear.