York S1-028-12363-700 Sheave

The York S1-028-12363-700 Fixed Pitch Sheave is a precision-engineered drive component designed for heavy-duty HVAC blower and motor applications. This 1-groove fixed sheave features a precise 1-inch bore and is built to maintain consistent pitch diameters, preventing the belt slippage and vibration common in inferior adjustable alternatives. Constructed from high-grade cast iron, it provides the structural integrity required to handle high-torque start-ups and continuous operation in commercial air handlers and rooftop units. When replacing a York blower pulley, ensuring exact alignment and concentricity is critical for bearing longevity and system efficiency. This OEM replacement part is specifically balanced to reduce mechanical stress on the motor shaft, maintaining the CFM output required for optimal heat exchange. For contractors performing preventative maintenance or emergency repairs, verifying the York drive component compatibility ensures a drop-in fit that eliminates the need for field modifications or shaft sleeve adjustments.

• Engineered Precision: Maintains a constant speed ratio to ensure stable airflow and system performance.
• Industrial Durability: Cast iron construction resists wear and thermal expansion under high-load conditions.
• Vibration Dampening: Balanced design minimizes harmonic distortion, protecting the motor and blower bearings.
• OEM Compatibility: Direct fit for specific York and Johnson Controls air handling equipment.

Is this sheave compatible with 5L or B-section belts?
This 1 groove fixed pitch sheave is designed for standard industrial V-belts; always verify the belt profile dimensions to ensure proper seating in the groove.

Can this be used on a motor with a 7/8" shaft?
No, this component features a 1-inch bore. Using bushings to downsize is not recommended for high-RPM HVAC blower applications where precision balance is required.

How do I prevent the sheave from seizing on the shaft?
Clean the motor shaft thoroughly and use a light coating of anti-seize on the bore surfaces during installation to facilitate future maintenance.

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.