Aaon P66670 Pulley Bushing

The Aaon P66670 Pulley Bushing H x 1.38 is a high-precision component engineered for critical HVAC drive assembly applications. This tapered shaft bushing (H-style) features a 1.38 inch bore size, providing a secure, uniform mechanical lock between the drive shaft and the sheave. Designed for original equipment compatibility in Aaon rooftop units and air handlers, the P66670 utilizes a split-barrel design that ensures concentric mounting and prevents high-speed vibration. HVAC technicians favor this OEM Aaon pulley part for its reliability in heavy-duty blower motors where slip resistance is non-negotiable. Whether you are performing a routine fan belt adjustment or a full motor replacement, this split taper bushing facilitates quick installation and removal using the integrated jacking screw holes, minimizing downtime during field service calls.

Key Benefits:

• Precision Mechanical Fit: The H-style taper ensures a 360-degree clamp on the shaft, eliminating the risk of keyway damage.
• OEM Standards: Designed specifically as a genuine Aaon replacement part to maintain the factory performance of your HVAC blower system.
• Ease of Service: Features standard jacking holes for effortless removal, even in corrosive or high-temperature environments.
• Optimal Alignment: Helps maintain precise sheave alignment to extend the operational life of your fan belts and bearings.

Common Questions:

• What shaft size does the P66670 accommodate? This specific bushing is designed for a 1.38-inch diameter shaft. Always verify your motor shaft dimensions with a micrometer before installation.
• Is this an H-style or SH-style bushing? The Aaon P66670 is a standard H-type pulley bushing, which is characterized by its specific bolt circle and flange dimensions.
• Can I use lubricants during installation? No. As a technician knows, applying oil or grease to the tapered surfaces can lead to over-torquing and potential hub failure. Install dry and clean.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

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