Browning 1028067 Single Groove Sheave 3.35 in Od 7/8 in Bore

Product Description

The BROWNING 1028067 is a finished bore single groove sheave designed for use with V-belt drive systems in HVAC, industrial, and mechanical power transmission applications. Manufactured from cast iron, this sheave features a 3.35-inch outer diameter and a 7/8-inch finished bore, ready for direct shaft installation without additional machining. The belt pitch diameter is 2.6 inches for Type 4L or A belts, and the groove width measures 13/16 inches. Weighing 0.9 pounds, this compact sheave suits light-duty to medium-duty belt drive configurations. HVAC technicians and mechanical contractors commonly specify this component for blower and fan drive assemblies.

This sheave is suited for residential and light commercial HVAC systems, as well as general industrial belt drive applications where a Type 4L or A V-belt is used. It is typically installed on motor or driven-shaft assemblies operating blower wheels, fans, or other rotating equipment. The 7/8-inch finished bore accepts standard shaft diameters directly, making it a straightforward drop-in for common motor shaft sizes found in air handling and ventilation equipment.

Key Features

• Single groove design accepts Type 4L or A V-belts
• 3.35-inch outer diameter with 2.6-inch pitch diameter
• 7/8-inch finished bore — no additional machining required
• 13/16-inch groove width for proper belt seating
• Cast iron construction for durability in belt drive service
• Lightweight at 0.9 pounds for easy handling and installation

Compatibility

Designed as an OEM-style replacement or direct-fit sheave for single-groove V-belt drive assemblies using Type 4L or A belts with a 7/8-inch shaft bore requirement.

Installation Notes

Installation should be performed by a qualified HVAC technician or mechanical contractor. Disconnect and lock out power to the drive system before removing or installing any sheave. Verify shaft diameter matches the 7/8-inch bore and secure the sheave with an appropriately sized set screw or bushing before tensioning the belt. Inspect belt alignment and tension per the belt manufacturer guidelines after installation.