Browning 2BK70H Sheave 328140-751 replacing it with a genuine

replacing it with a genuine 221172 wheel is the standard solution to prevent motor damage

as it will not affect or mask black lights

optimized for push-down-to-close action

confirming blade position before initiating heating or cooling cycles

the EF33CW180 offers a direct-fit solution for models like the 58CTA and 312AAV series

Browning 2BK70H Sheave 328140-751 replacing it with a genuineThe Browning 2BK70H Sheave is a high grade cast iron pulley engineered for heavy duty industrial and HVACR power transmission applications. Featuring a 6. 75" outside diameter, this double groove sheave is designed for use with H series bushings, ensuring a secure and concentric fit on the shaft to minimize vibration. It is precision machined to accommodate 4L, 5L, A, and B belts, providing versatile cross compatibility for belt driven blowers and