the K6-1 jackshaft clamp must be used to ensure the assembly meets the required technical specifications for stable operation

Durable SPST Contacts: Engineered for high-cycle reliability

Direct OEM Swap: Specifically designed to replace the HC40GR236 without mounting modifications

Using a genuine Reznor HVAC replacement part ensures that your system maintains its original CFM ratings and safety parameters

Browning 1VP40X3/4 Sheave 318973-401 the K6-1 jackshaft clamp mustWhen you're spec'ing out drive components for HVACR systems, the Browning 1VP40X3 4 sheave is a solid choice for reliable power transmission. This cast iron sheave is engineered for durability and consistent performance in demanding applications. With a 3. 75" outside diameter and a single groove design, it's built to handle the rigors of continuous operation. The 3 4" fixed bore ensures a secure fit on your motor or driven shaft, minimizing slippage