Browning 1025865 Single Groove Sheave 3/4 in Bore 2 in Od

Product Description

The BROWNING 1025865 is a finished bore single groove sheave designed for use with V-belts in belt-drive power transmission systems. Machined from cast iron, this sheave features a 3/4 inch finished bore and a 2 inch outer diameter, making it a compact solution for light-duty drive applications. The groove is sized for 3L, 4L, and A-series V-belts. With a bore length through of 15/16 inch and a face width of 21/32 inch, this sheave fits standard shaft and housing configurations. HVAC technicians and mechanical contractors install this component on blower assemblies, fan drives, and small motor shaft applications.

This sheave is suited for residential and light commercial HVAC equipment, refrigeration units, and general-purpose machinery where a single-groove belt drive is required. It installs on motor or driven-shaft ends in configurations using 3L, 4L, or A-profile V-belts. The finished bore is ready to mount without additional machining. Typical applications include belt-driven blower wheels, exhaust fans, and small compressor drives found in rooftop units, split systems, and packaged equipment.

Key Features

• Finished bore at 3/4 inch — ready to install, no secondary machining required
• Compatible with 3L, 4L, and A-series V-belts for flexible belt selection
• Cast iron construction for durability in belt-drive service
• Single groove design for straightforward single-belt drive configurations
• Compact 2 inch OD suits small motor and blower shaft applications
• 21/32 inch face width fits standard sheave spacing requirements

Compatibility

Designed as an OEM-style replacement sheave for single-groove V-belt drive assemblies using 3L, 4L, or A-series belts with a 3/4 inch shaft diameter.

Installation Notes

Installation is performed by HVAC technicians or mechanical contractors. Disconnect and lock out power to the motor before removing the existing sheave or belt. Ensure the shaft is clean and free of burrs before sliding the sheave into position, and align the sheave face parallel to the mating sheave to prevent premature belt wear. Secure with a set screw or bushing per the driven equipment manufacturer's specifications.