Bell & Gossett 1/2" x 1/2" stamped steel coupler. A broken coupler indicates that the motor mounts have lost their resiliency and the motor shaft and pump shaft are now out of alignment. It is recommended to replace the motor mounts when the pump coupling breaks.
Brand: Bell & Gossett MPN: 189110 Pump Series Repaired: Series 100, Series 2, Series HV, Series PR
