York S1-028-15208-000 Sheave

The York S1-028-15208-000 is a precision-engineered fixed sheave designed for industrial and commercial HVAC drive systems. This OEM component features a 1-inch bore and a single-groove profile, specifically balanced to ensure seamless power transmission between the blower motor and the fan assembly. As the designated technical replacement for the discontinued S1-028-12359-700, it maintains the exact mechanical tolerances required to preserve factory-specified airflow and static pressure. For technicians troubleshooting drive train vibration or belt slippage, upgrading to this 1-groove sheave eliminates variables caused by aftermarket alternatives. The heavy-duty construction resists thermal expansion during high-torque startup, ensuring the drive belt remains seated correctly in the groove. When performing a motor swap or a preventive maintenance overhaul on York air handlers, installing this 1-inch bore pulley is critical for maintaining the calibrated RPM of the blower wheel and preventing excessive amp draw on the motor.

• Direct OEM Replacement: Engineering-verified successor to part number S1-028-12359-700.
• Precise Machining: The 1-inch bore ensures a snug fit on the motor shaft, reducing harmonic vibration and bearing stress.
• Fixed Ratio Stability: Eliminates the drift often found in adjustable sheaves, maintaining consistent system CFM.
• Durable Construction: Built to withstand the high-stress environment of constant-duty blower compartments.

Does this part fit a 7/8-inch shaft? No, this sheave is specifically machined for a 1-inch bore. Always verify the motor shaft diameter with a micrometer before installation.

Is the S1-028-15208-000 compatible with older York units? Yes, this part is the official superseding number for the S1-028-12359-700, ensuring full backwards compatibility with legacy drive assemblies.

Can I adjust the pitch on this sheave? This is a fixed sheave. If your application requires field-tuning of the fan speed, you must verify the drive specifications to see if an adjustable pitch pulley was originally intended for the motor.

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.