Browning 1033364 Two Groove Sheave 3.75in Od Cast Iron

Product Description

The BROWNING 1033364 is a finished bore two groove sheave designed for V-belt drive systems in HVAC, industrial fan, and mechanical power transmission applications. Cast from iron for durability, this sheave features a 1.125 inch finished bore and a 3.75 inch outer diameter. The belt pitch diameter measures 3.4 inches, and the pitch diameter for 4L or A belt types is 3.0 inches. Licensed HVAC technicians, mechanical contractors, and equipment service professionals install this type of component when servicing or replacing belt-drive blower and fan assemblies.

This sheave is suited for residential and light commercial HVAC blower assemblies, exhaust fans, and other V-belt drive configurations requiring a two groove setup. It accepts standard 4L or A-section V-belts and is compatible with drive systems calling for a finished bore sheave in this diameter range. The finished bore eliminates the need for additional machining prior to installation, making it a direct-fit replacement option for worn or damaged sheaves in belt-drive systems.

Key Features

• Finished bore at 1.125 inches — no machining required before installation
• Two groove design supports dual V-belt drive configurations
• Cast iron construction for strength and wear resistance
• Belt pitch diameter of 3.4 inches for accurate speed ratio calculations
• Compatible with 4L and A-section V-belts at a 3.0 inch pitch diameter
• Overall length through bore of 1-31/32 inches

Compatibility

Designed as an OEM-style replacement sheave for belt-drive blower and fan systems requiring a two groove, finished bore sheave with a 3.75 inch outer diameter and 1.125 inch bore diameter accepting 4L or A-section V-belts.

Installation Notes

Installation should be performed by a qualified HVAC technician or mechanical contractor. Disconnect and lock out all electrical power to the equipment before servicing any belt-drive assembly. Inspect belts, bearings, and the drive shaft for wear before mounting the new sheave, and verify shaft diameter matches the finished bore before pressing the component into place. Consult applicable OSHA guarding requirements for exposed belt and sheave assemblies upon completion.