Browning 1027333 Single Groove Sheave 0.75 in Bore Cast Iron

Product Description

The BROWNING 1027333 is a finished bore single groove sheave designed for use in belt-drive power transmission systems. Cast iron construction provides durability under continuous load in HVAC, industrial fan, and mechanical equipment applications. The sheave features a 0.75 inch finished bore diameter and a 9.25 inch outer diameter. The pitch diameter measures 9.0 inches for Type 4L and Type A belts, and 8.66 inches for Type 3L belts. The bore length through the hub is 1-15/32 inches. This component is installed by HVAC technicians, mechanical contractors, and industrial maintenance professionals when replacing worn or mismatched drive sheaves.

This sheave is suited for residential and light commercial HVAC systems, exhaust fans, blowers, and general-purpose belt-drive equipment where a single groove V-belt configuration is specified. It accepts standard Type 4L, Type A, and Type 3L V-belts, making it a versatile replacement option for single-belt drive setups. The finished bore is ready to install without additional machining, which simplifies replacement in the field.

Key Features

• Finished bore at 0.75 inches — no machining required for installation
• Cast iron construction for strength and wear resistance under continuous belt load
• Compatible with Type 4L, Type A, and Type 3L V-belts
• 9.0 inch pitch diameter for Type 4L and Type A belts
• 8.66 inch pitch diameter for Type 3L belts
• Single groove design for straightforward single-belt drive replacement

Compatibility

Designed as an OEM-style replacement single groove sheave for belt-drive systems requiring a 0.75 inch bore and 9.25 inch OD in Type 4L, Type A, or Type 3L V-belt configurations.

Installation Notes

Installation should be performed by a qualified HVAC technician or mechanical maintenance professional. Disconnect and lock out all power to the drive system before removing the existing sheave or belt. Verify belt alignment and tension after mounting the sheave to prevent premature belt or bearing wear. Ensure the shaft diameter matches the 0.75 inch finished bore before installation.