Browning 1033083 Two Groove Sheave 2.7in Od 7/8in Bore

Product Description

The BROWNING 1033083 is a finished bore two groove sheave designed for use with B-section or A-section V-belts in belt-driven power transmission systems. The sheave measures 2.7 inches in overall outside diameter with a 7/8 inch finished bore and a 1.75 inch face width. Cast iron construction provides the durability and mass consistency required in commercial and light industrial drive systems. The pitch diameter is 2.1 inches for 4L or A belt types, and the overall length through the bore is 1-31/32 inches. Licensed HVAC technicians, millwrights, and mechanical contractors install this class of sheave on fan, blower, and pump shaft assemblies where precise belt alignment and groove engagement are critical to drive efficiency.

This sheave is suited for residential and light commercial HVAC blower assemblies, exhaust fans, pump drives, and general-purpose belt transmission applications requiring a compact two groove pulley. The finished bore is machined to accept a 7/8 inch shaft directly, reducing installation time compared to taper-lock or bushed configurations. Two grooves allow dual belt runs, which distribute load and reduce belt wear in continuous-duty applications.

Key Features

• Finished 7/8 inch bore — ready to mount on standard 7/8 inch shafts without additional machining
• Two groove design supports dual V-belt runs for increased load capacity and redundancy
• Cast iron construction for durability and dimensional stability under operating loads
• 2.1 inch pitch diameter compatible with 4L and A belt types
• Compact 2.7 inch OD suits space-constrained blower and fan drive installations
• 1.75 inch face width with 1-31/32 inch length through bore

Compatibility

Designed as an OEM-style replacement or new-installation two groove V-belt sheave for 7/8 inch shafts using 4L or A-section belts in residential and light commercial belt drive systems.

Installation Notes

Installation should be performed by a qualified technician. Disconnect and lock out all power to the drive system before removing or installing any sheave. Verify shaft diameter, keyway dimensions, and setscrew engagement before finalizing the installation. After installation, check belt tension and sheave alignment per the belt manufacturer's specifications before returning the system to service.