Browning 1026210 Single Groove Sheave 3.05in Od 7/8in Bore

Product Description

The BROWNING 1026210 is a finished bore single groove sheave designed for belt-drive applications in HVAC and mechanical systems. Cast iron construction provides the mass and rigidity needed for reliable power transmission across blower and fan assemblies. The sheave features a 7/8 inch finished bore, a 3.05 inch outer diameter, and a 21/32 inch groove width. With a pitch diameter of 2.8 inches for B or A belt types and 2.46 inches for 3L belt types, this sheave is ready to mount without additional machining. Licensed HVAC technicians and millwrights typically install this component during blower section service or belt-drive replacement work.

This sheave is suited for single-groove belt-drive configurations in residential and light commercial HVAC equipment, including air handlers, furnaces, and packaged units with belt-driven blower assemblies. It accepts standard B-section, A-section, and 3L V-belts. The finished bore and cast iron body make it a direct-fit replacement in applications where the shaft diameter and drive geometry match the published specifications. Verify shaft size, belt section, and center distance before installation.

Key Features

• Finished bore at 7/8 inch — no additional machining required
• Cast iron construction for durability in continuous belt-drive service
• Compatible with B-section, A-section, and 3L V-belts
• Single groove design for straightforward single-belt drive configurations
• 21/32 inch groove width for proper belt seating and tracking
• Overall bore length of 15/16 inches provides adequate shaft engagement

Compatibility

Designed as an OEM-style replacement sheave for single-groove belt-drive blower and fan assemblies where a 7/8 inch bore and 3.05 inch OD are specified.

Installation Notes

Installation is typically performed by a licensed HVAC technician or millwright. Disconnect and lock out power to the equipment before removing the existing sheave or belt. Confirm shaft diameter, belt section, and drive alignment before mounting. Proper belt tension and sheave alignment are critical to belt life and bearing load — follow the equipment manufacturer's belt tension guidelines using a tension gauge.