Lau g078052534 V-belt Pulley 8.25 in Od 0.75 in Bore One Groove

Product Description

The LAU g078052534 is a single-groove V-belt pulley designed for use in HVAC fan and blower drive assemblies. With an outer diameter of 8.25 inches and a 0.75-inch bore, this pulley mounts to a blower or motor shaft to transfer rotational power via a standard V-belt drive system. Single-groove construction keeps the drive configuration straightforward and is well-suited to direct single-belt power transmission in air-handling equipment. This type of component is typically installed by licensed HVAC technicians performing blower drive service, belt replacement, or fan system upgrades.

This pulley is appropriate for residential and light commercial HVAC applications where a single-belt V-belt drive is used to connect a motor to a blower wheel or fan shaft. Common install scenarios include air handlers, furnace blower sections, and rooftop unit fan assemblies. The 8.25-inch OD makes this a larger-diameter driven pulley, which affects the final RPM ratio of the blower relative to the motor pulley. Matching pulley diameter to system design specifications is essential for correct airflow performance.

Key Features

• 8.25-inch outer diameter suits larger blower drive configurations
• 0.75-inch bore fits standard motor and blower shaft sizes common in HVAC equipment
• Single-groove design for straightforward single V-belt drive systems
• Sold individually — one pulley per package

Compatibility

Designed as an OEM-style replacement pulley for single-groove V-belt drive systems in residential and light commercial HVAC blower and fan assemblies requiring an 8.25-inch OD and 0.75-inch bore.

Installation Notes

Installation should be performed by a qualified HVAC technician. Disconnect and lock out electrical power to the unit before removing the existing pulley or belt. Confirm shaft diameter, pulley alignment, and belt tension after installation — misalignment accelerates belt and bearing wear. Secure the pulley with the appropriate set screw or keyway fastener before returning the unit to service.

Technical Specifications

• Outer Diameter (OD): 8.25 inches
• Bore Size: 0.75 inches
• Number of Grooves: 1
• Box Quantity: 1

Standard Information

• Brand: LAU
• Manufacturer Part Number: g078052534