York S1-028-10564-700 Blower Pulley

Ensure precise mechanical drive performance with the York S1-028-10564-700 Blower Pulley. This 1 groove fixed sheave is specifically engineered for high-demand HVACR applications, featuring a dedicated 1 inch bore to allow for a secure, interference-fit installation on standard blower motor shafts. Constructed from industrial-grade cast iron (BK80), it provides the rigidity necessary to maintain proper HVAC belt tension and mitigate energy loss due to slippage during high-torque startup sequences. As a genuine HVAC blower pulley replacement, this component ensures exact alignment with 4L or A-section belts, critical for preventing premature wear on drive-side bearings in central air conditioners and furnace blowers. By utilizing a fixed pitch design, this sheave eliminates the vibration issues often associated with worn adjustable pulleys, maintaining consistent RPMs for balanced airflow across heat exchangers. For contractors performing scheduled maintenance or emergency repairs, the York S1-02810564700 offers a reliable solution to restore peak volumetric efficiency in residential and light commercial air handlers.

• Industrial Stability: Manufactured from forged cast iron to resist warping and groove wear under continuous duty cycles.
• Precision Machined Bore: The 1 inch bore diameter ensures a tight tolerance fit to minimize shaft wobbling and dynamic imbalance.
• Direct OEM Compatibility: Engineered specifically for York, Luxaire, and Coleman equipment to maintain original factory fan curves.
• Optimized Power Transfer: Single-groove profile is optimized for standard A-belts, providing a consistent fixed sheave blower drive.

What belt sizes are compatible with this sheave?
This sheave is designed to work with 4L and A-section belts, which are the industry standard for most residential and light commercial blower assemblies.

Can I use this for a variable speed application?
This is a fixed sheave, meaning it has a set diameter. It is used in systems where a constant drive ratio is required for specific CFM requirements.

Is a keyway included in the bore?
Yes, this pulley includes a standard keyseat and setscrews to ensure it stays locked to the motor shaft without spinning or drifting.

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.