Browning 1028182 Single Groove Sheave 1-1/8 Bore 3-3/4 Od

Product Description

The BROWNING 1028182 is a finished bore single groove sheave designed for use with V-belt drive systems in industrial and mechanical power transmission applications. Manufactured from cast iron, this sheave features a 1-1/8 inch finished bore diameter and a 3-3/4 inch outer diameter. The single groove profile accepts standard 4L or A-type V-belts with a pitch diameter of 3.0 inches. At 7/8 inch wide with an overall bore length of 1-5/32 inches, it is sized for compact drive configurations. Installation is handled by HVAC mechanics, millwrights, and maintenance technicians working on belt-driven equipment such as fans, blowers, and pumps.

This sheave is suited for residential and light commercial applications where single V-belt drives are used to transmit power between motors and driven equipment. Common install scenarios include belt-driven blower assemblies, ventilation fans, and pump systems. The finished bore eliminates additional machining and accepts standard shaft sizes directly, streamlining field installation and replacement work.

Key Features

• Finished bore eliminates machining — ready for direct shaft installation
• Single groove design accepts standard 4L or A-type V-belts
• Cast iron construction provides durability in belt-drive service
• 3.0 inch pitch diameter for accurate belt speed ratio calculations
• Compact 7/8 inch face width fits space-constrained drive assemblies
• UNSPSC Code 31171804 for procurement and catalog reference

Compatibility

Designed as an OEM-style replacement single groove sheave for belt-driven blowers, fans, and pumps using standard 4L or A-type V-belts on 1-1/8 inch diameter shafts.

Installation Notes

Installation is typically performed by licensed HVAC technicians or qualified maintenance personnel. Disconnect and lock out all power to the drive system before removing or installing any sheave or belt components. Ensure the shaft is clean and free of burrs before seating the bore, and align the sheave face parallel to the mating sheave to prevent premature belt wear. Follow applicable ANSI and OSHA machine guarding requirements when reassembling belt drive enclosures.