Browning 1028232 Single Groove Sheave 1 in Bore 4 in Od

Product Description

The BROWNING 1028232 is a finished bore single groove sheave designed for V-belt drive systems in HVAC, industrial, and mechanical power transmission applications. Cast from iron for durability, this sheave features a 1 inch finished bore and a 4 inch outer diameter, making it a ready-to-install replacement or new-installation component. The belt pitch diameter for Type B or A belts is 3.2 inches, and the overall length through the bore measures 1-5/32 inches. Licensed HVAC technicians, millwrights, and mechanical contractors typically install this type of sheave on fan and blower drive assemblies.

This sheave is suited for single-groove V-belt configurations using Type 4L or A belts. Common installation scenarios include air handler blower drives, condenser fan assemblies, and general-purpose mechanical drive setups in both residential and light commercial equipment. The finished bore means no additional machining is required before mounting to a shaft of 1 inch diameter. The cast iron construction provides the mass and rigidity needed for stable, low-vibration operation in continuous-duty drive systems.

Key Features

• Finished 1 inch bore — ready to mount without additional machining
• 4 inch outer diameter with a 3.2 inch pitch diameter for Type 4L or A belts
• Single groove configuration for straightforward single-belt drive layouts
• Cast iron construction for durability and dimensional stability
• Overall length through bore of 1-5/32 inches for compact shaft engagement
• Belt groove width of 7/8 inch suits standard V-belt profiles

Compatibility

Designed as an OEM-style replacement or direct-fit sheave for single-groove V-belt drive systems using Type 4L or A belts with a 1 inch shaft bore requirement.

Installation Notes

Installation should be performed by a qualified HVAC technician or mechanical contractor. Disconnect and lock out all power to the unit before removing or installing any drive components. Ensure the shaft is clean and free of burrs before sliding the sheave onto the 1 inch bore. Verify belt tension and sheave alignment after installation per standard drive system practices before returning the unit to service.