Browning 1028117 Single Groove Sheave 1in Bore 3.55in Od

Product Description

The BROWNING 1028117 is a finished bore single groove sheave designed for use with V-belt drive systems in HVAC, industrial, and mechanical power transmission applications. Machined from cast iron, this sheave features a 1 inch finished bore and a 3.55 inch outside diameter, making it a compact, ready-to-mount component. The pitch diameter for 4L or A belt types measures 2.8 inches, and the overall length through the bore is 1-5/32 inches. The face width of 7/8 inch accommodates standard single-groove belt configurations. Licensed HVAC technicians, mechanical contractors, and millwrights install this sheave as part of fan drive assemblies, blower systems, and similar belt-driven equipment.

This sheave is suited for single-groove V-belt drive applications found in residential and light commercial HVAC fan assemblies, ventilation systems, and general power transmission setups. It is compatible with 4L and A-profile V-belts. The finished bore is ready for installation without additional machining, reducing downtime during service or replacement work. Its cast iron construction provides durability in demanding operating environments where belt tension and cyclic loading are continuous factors.

Key Features

• Finished bore at 1 inch — no additional machining required before installation
• Outside diameter of 3.55 inches for compact single-groove drive applications
• Pitch diameter of 2.8 inches compatible with 4L and A-profile V-belts
• 7/8 inch face width suits standard single-groove belt configurations
• Cast iron construction provides durability under continuous belt load and tension
• Overall length through bore of 1-5/32 inches for precise shaft fitment

Compatibility

Designed as a finished bore single groove sheave for use with 4L and A-profile V-belts in single-groove belt drive systems. Suitable as an OEM-style replacement in residential and light commercial fan and blower drive assemblies where a 1 inch bore and 2.8 inch pitch diameter are specified.

Installation Notes

Installation is performed by licensed HVAC technicians, millwrights, or qualified mechanical contractors. Disconnect and lock out all electrical power to the driven equipment before removing or installing any sheave or belt. Ensure the shaft is clean, free of burrs, and within tolerance for the 1 inch bore before mounting. Verify belt alignment and tension after installation per standard drive system practices and applicable industry guidelines.