A21763U-335 Cornell Pump OEM Drive Coupler

The A21763U-335 Cornell Pump OEM Drive Coupler is a factory coupling assembly for Cornell Pump Company centrifugal pumps. This coupler provides the flexible shaft connection between the driver and the pump, managing torsional vibration in continuous pumping operations.

Cornell pumps serve demanding fluid handling applications in agriculture, mining, municipal utilities, and industrial processing. The drive coupler protects the pump mechanical seal and bearings from the vibration generated by the prime mover while absorbing the torque spikes created by variable pump loading. Proper coupler function directly affects seal life, which is one of the highest-frequency maintenance items on centrifugal pump installations.

The A21763U-335 is a Cornell factory part that matches the original coupling dimensions. Clean both shafts during installation, verify keyway condition, and set pump-to-driver alignment per Cornell specifications before torquing coupling hardware.

Ships same day from Stark Industrial Products when in stock.