Browning 1027945 Single Groove Sheave 2.7in Od 7/8in Bore

Product Description

The BROWNING 1027945 is a finished bore single groove sheave designed for use with B-section or A-section V-belts in belt-drive power transmission applications. Cast from iron for durability, this sheave features a 2.7 inch outer diameter, a 7/8 inch finished bore, and a groove width of 13/16 inches. With a belt pitch diameter of 2.1 inches and an overall bore length of 1-1/16 inches, it is sized for compact drive configurations in HVAC, mechanical equipment, and industrial machinery. Installation is typically performed by HVAC technicians and mechanical service professionals.

This sheave is suited for residential and light commercial belt-drive systems where a single-groove pulley is required on motor or driven shafts. Typical applications include blower and fan assemblies, air handling units, and similar equipment using 4L or A-section V-belts. The finished bore accepts a 7/8 inch shaft directly without additional machining, reducing installation time in the field.

Key Features

• Finished 7/8 inch bore — installs directly onto standard 7/8 inch shafts
• Single groove design compatible with 4L or A-section V-belts
• 2.7 inch outer diameter with 2.1 inch belt pitch diameter
• 13/16 inch groove width for proper belt seating
• Cast iron construction for strength and wear resistance
• Overall bore length of 1-1/16 inches for secure shaft engagement

Compatibility

Designed as an OEM-style replacement single groove sheave for belt-drive systems using 4L or A-section V-belts on 7/8 inch shafts.

Installation Notes

Installation should be performed by a qualified HVAC technician or mechanical service professional. Disconnect and lock out all power to the drive system before removing or installing any sheave. Ensure the shaft and bore surfaces are clean and free of burrs before mounting, and confirm proper belt tension and alignment after installation to prevent premature belt or bearing wear.