Lau g078101722 Variable Pitch Pulley 6 in Od 3/4 in Bore

Product Description

The LAU g078101722 is a variable pitch V-belt pulley designed for use in belt-drive HVAC and fan systems. It features a 6-inch outer diameter with a 3/4-inch bore and a single-groove sheave profile. This type of pulley is commonly installed on blower assemblies, air handlers, and fan units where belt tension and speed adjustments are required. Licensed HVAC technicians and mechanical contractors install this component during system commissioning, belt replacement, or blower speed tuning to match system airflow requirements.

This pulley is suited for residential and light commercial HVAC applications involving single-belt drive configurations. It is typically mounted on a blower shaft or motor shaft in forced-air systems. The 6-inch OD allows for appropriate speed ratios when paired with a standard motor sheave. Install locations include rooftop units, air handling units, and inline fans where belt-drive blower assemblies are specified.

Key Features

• 6-inch outer diameter for compatible belt-drive speed ratio configurations
• 3/4-inch bore for direct shaft mounting without additional adaptation
• Single-groove sheave profile for single V-belt drive systems
• Sold individually, one pulley per package

Compatibility

Designed as an OEM-style replacement sheave for single V-belt blower drive systems in residential and light commercial forced-air HVAC equipment.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified mechanical contractor. Disconnect and lock out all electrical power to the unit before removing or installing any belt-drive components. Confirm shaft diameter matches the 3/4-inch bore before mounting, and verify proper belt alignment and tension after installation to prevent premature wear. Consult the equipment manufacturer's service documentation for belt tension specifications.

Technical Specifications

• Outer Diameter: 6 inches
• Bore Size: 3/4 inches
• Number of Grooves: 1
• Box Quantity: 1

Standard Information

• Brand: LAU
• Manufacturer Part Number: g078101722