Browning 1027846 Single Groove Sheave 2-1/2 in Od

Product Description

The BROWNING 1027846 is a finished bore single groove sheave designed for use with A-section and 4L V-belts in light- to medium-duty power transmission applications. Cast iron construction gives this sheave the rigidity and wear resistance required for continuous operation on belt-driven HVAC, fan, and blower systems. The 2-1/2 inch outer diameter pairs with a 3/4 inch finished bore, so no additional machining is required before installation. The groove width of 13/16 inches accepts standard A or 4L belt cross-sections. Bench-stock replacement for service technicians maintaining belt-drive fan assemblies on air handlers, condensing units, and light commercial equipment.

This sheave is suited for residential and light commercial belt-drive applications where a single V-belt transfers power from a motor shaft to a blower wheel, fan, or pump. The finished bore is ready to mount directly to a 3/4 inch shaft. Typical installations include belt-driven blower assemblies in furnaces, air handlers, and evaporative coolers. The compact 2-1/2 inch OD makes it appropriate for low-speed, high-torque fan drive arrangements where space around the drive is limited. HVAC technicians and millwrights are the primary installers for this type of component.

Key Features

• Finished 3/4 inch bore — no machining required, mounts directly to standard shaft
• 2-1/2 inch outer diameter with 1.9 inch pitch diameter for A or 4L belt types
• 13/16 inch groove width fits standard A-section and 4L V-belt cross-sections
• Cast iron construction for rigidity and long service life under continuous belt load
• Single groove design for straightforward single-belt drive arrangements
• Overall bore length of 1-1/16 inches provides adequate shaft engagement

Compatibility

Designed as an OEM-style replacement sheave for single-belt drive assemblies using A-section or 4L V-belts on a 3/4 inch shaft.

Installation Notes

Installation should be performed by a qualified HVAC technician or millwright. Disconnect and lock out all electrical power to the drive system before removing or installing any sheave. Verify shaft diameter and belt cross-section match the sheave specifications before mounting. After installation, check belt tension and alignment per standard belt-drive service practices before returning the system to service.