Browning 1033042 Two Groove Sheave 2-1/2 in Od Cast Iron

Product Description

The BROWNING 1033042 is a finished bore, two-groove V-belt sheave designed for use in belt-driven HVAC and mechanical equipment. Cast from iron for durability, this sheave features a 7/8 inch bore diameter and a 2-1/2 inch outer diameter. The pitch diameter for B-section or A-section belts measures 1.9 inches, and the overall length through the bore is 1-31/32 inches. It is installed by HVAC technicians and mechanical trades on fan, blower, and motor assemblies where dual V-belt drive configurations are required. The finished bore arrives ready for mounting without additional machining.

This sheave is suited for residential and light commercial HVAC blower assemblies, condenser fan drives, and general industrial belt-drive applications. It accommodates 4L or A-section and B-section V-belts and is a direct replacement style for two-groove drive configurations where a 7/8 inch shaft is present. It is commonly used on motor output shafts and driven equipment shafts in forced-air heating, cooling, and ventilation systems.

Key Features

• Finished bore at 7/8 inch — ready to mount on compatible shaft without additional machining
• Two-groove design accepts dual 4L/A-section or B-section V-belts
• Cast iron construction for wear resistance and dimensional stability under load
• 2-1/2 inch outer diameter with a 1.9 inch belt pitch diameter
• Compact through-bore length of 1-31/32 inches suits space-constrained drive assemblies

Compatibility

Designed as an OEM-style replacement two-groove V-belt sheave for belt-driven blower and fan assemblies using 7/8 inch shafts and 4L, A-section, or B-section V-belts.

Installation Notes

Installation should be performed by a qualified HVAC technician or mechanical tradesperson. Disconnect and lock out all power to the equipment before removing or installing any sheave or belt assembly. Verify shaft diameter and keyway dimensions before mounting, and ensure the set screw is properly torqued per the fastener manufacturer's specification. Align the sheave with a straightedge or laser alignment tool to reduce belt wear and vibration after installation.