Browning 1042993 Qd Bushed V-belt Sheave 2 Groove 4.25in Od

Product Description

The BROWNING 1042993 is a two-groove, quick-disconnect (QD) bushed V-belt sheave designed for power transmission applications in HVAC, industrial, and mechanical drive systems. It features a 4.25-inch outside diameter and accepts an H-style QD bushing, allowing bore sizes from 0.375 inches up to 1.5 inches to be accommodated without changing the sheave itself. The sheave is compatible with A-section V-belts at a 3.5-inch pitch diameter and B-section V-belts at a 3.9-inch pitch diameter. At 3.2 pounds, it is a compact, field-serviceable component suited for fan, blower, and pump drive assemblies. Installation and removal are handled by HVAC mechanics, millwrights, and mechanical contractors.

This sheave is commonly installed on belt-driven blower assemblies, supply and return fans, cooling tower fan drives, and pump systems found in commercial and light industrial facilities. The QD bushing design allows fast, repeatable shaft mounting and removal without special tooling, making it practical for planned maintenance and emergency replacement work on belt-drive systems where minimal downtime is a priority.

Key Features

• Two-groove design accommodates dual V-belt drive configurations for increased power transfer capacity
• H-style QD bushing interface accepts bore diameters from 0.375 inches to 1.5 inches
• 4.25-inch outside diameter with 3.5-inch A-section belt pitch diameter and 3.9-inch B-section belt pitch diameter
• QD bushing mount allows tool-efficient installation and removal, reducing maintenance time on belt-drive assemblies
• Lightweight at 3.2 pounds, suitable for space-constrained drive housings

Compatibility

Designed for use with H-style QD bushings and A-section or B-section V-belts. Bore range of 0.375 inches to 1.5 inches accommodates a wide range of shaft sizes in belt-driven fan, blower, and pump applications.

Installation Notes

Installation should be performed by a qualified mechanic or HVAC technician. Disconnect and lock out all power to the drive system before removing or mounting the sheave. Align the sheave parallel to the mating sheave within manufacturer-recommended tolerances before fully tightening the QD bushing fasteners. Check belt tension and sheave alignment after installation and re-inspect after the first few hours of operation.