BMN729A Cornell OEM Drive Coupler

The BMN729A Cornell OEM Drive Coupler is an original equipment coupling for Cornell Pump Company centrifugal pump systems. This coupler provides torsional vibration isolation and flexible shaft connection between the driver and the pump.

Cornell pumps are engineered for high-volume fluid handling in agriculture, municipal water treatment, aquaculture, mining dewatering, and industrial process applications. The drive coupler in these installations absorbs startup torque spikes and running vibration that would otherwise pass directly into the pump bearings and mechanical seal assembly. A properly functioning coupler extends the service interval for these wear components and reduces unplanned maintenance shutdowns.

The BMN729A is a factory-specified part that matches the original coupling dimensions and elastomer properties for the intended pump model. During installation, verify shaft concentricity, clean all mating surfaces, and set the coupling gap per the Cornell installation manual before bringing the pump online.

Stark Industrial Products stocks Cornell pump couplers with same-day shipping on in-stock orders.