Aaon P74270 Pulley Bushing Q1 Type 1.63" Bore

The Aaon P74270 is a Q1-type double split-taper pulley bushing designed specifically for HVAC applications. This precision-engineered component provides a secure, zero-backlash mounting solution for pulleys, sheaves, and fan hubs in commercial HVAC systems.

Key Features:

• Q1 bushing style with 1.63-inch bore diameter for secure shaft mounting
• Double split-barrel design ensures superior concentricity and positive clamping to the shaft
• Solid flange construction with precision-machined taper for reliable pulley attachment
• Constructed from high-strength ductile iron or sintered steel for maximum durability
• Self-locking taper design provides the highest degree of mechanical locking without keyways
• Includes mounting hardware for simplified installation and removal

This bushing eliminates the functional disadvantages of traditional keyways, interference fits, and splines while providing superior torque transmission capabilities. The Q1 bushing style is compatible only with Q1 bushed-bore pulleys and sheaves. Ideal for belt-driven fans, blowers, and ventilation equipment in commercial and industrial HVAC systems.

Applications: Commercial HVAC rooftop units, air handlers, fan assemblies, and blower motor drives in Aaon equipment.