York S1-028-04255-700 Sheave 319852-301 High-Strength Internal Support: Features a

High-Strength Internal Support: Features a stainless steel helical spring to maintain structural integrity and prevent bypass during high-velocity gas flow

it ensures seamless compatibility with existing Lochinvar heating systems and A

Does this include the auxiliary end switch

This element is the standard solution for 120-volt heating circuits that require a consistent 750-watt output in a compact 8" form factor

it will create excessive noise and eventually damage the motor shaft and mounts

York S1-028-04255-700 Sheave 319852-301 High-Strength Internal Support: Features aThe York S1 028 04255 700 Fixed Sheave is a critical drive component engineered for high performance HVAC blower assembly applications. This single groove pulley features a precision machined 3 4 inch bore designed to provide a secure interference fit on drive shafts, minimizing vibration and ensuring consistent airflow performance. Constructed from durable cast iron or heavy duty steel, it maintains structural integrity under the high torque demands