Browning 1043017 Qd Bushed V Belt Sheave 2 Groove

Product Description

The BROWNING 1043017 is a two-groove, Quick Detachable (QD) bushed V-belt sheave designed for use in industrial belt-drive systems. Carrying the manufacturer designation 2BK50H, this cast iron sheave accepts both A-section and B-section V-belts, with a belt pitch A diameter of 4.0 inches and a belt pitch B diameter of 4.4 inches. The outside diameter measures 4.75 inches. It mounts via an H-style QD bushing, allowing fast installation and removal without specialty tooling. Bore diameter ranges from 0.375 inches minimum to 1.5 inches maximum, accommodating a wide range of shaft sizes. Typical installers are millwrights, HVAC technicians, and industrial mechanics maintaining belt-driven fan, pump, or blower assemblies. The part ships at 3.45 pounds.

This sheave is suited for light-duty to medium-duty belt-drive applications where two V-belt grooves are required to distribute load across parallel belts. Common installations include rooftop and air-handling unit blower assemblies, pump drives, compressor drives, and general industrial power transmission setups. The H-bushing mount style is a widely used QD standard, making this sheave compatible with drives already equipped with H-series hubs. Both A and B belt trade sizes are supported, giving installers flexibility when selecting belt cross-section for a given drive ratio.

Key Features

• Two-groove design distributes load across dual A or B section V-belts
• H-style QD bushing mount allows tool-free bushing removal and shaft size adjustment within the bore range
• Outside diameter of 4.75 inches with belt pitch A diameter of 4.0 inches and belt pitch B diameter of 4.4 inches
• Bore diameter range of 0.375 to 1.5 inches accommodates a broad selection of shaft sizes
• Cast iron construction for durability in industrial and commercial HVAC drive applications

Compatibility

Designed as an OEM-style replacement or direct-install sheave for belt-drive systems using A-section or B-section V-belts with an H-style QD bushing. No specific model compatibility data was provided in the product input.

Installation Notes

Installation should be performed by a qualified millwright, HVAC technician, or industrial mechanic. De-energize and lock out the drive unit before removing or installing any sheave or bushing. The QD bushing must be properly seated and fastened to the sheave hub before applying belt tension. After installation, verify belt tension and sheave alignment per drive manufacturer guidelines before returning the system to service.