Bell & Gossett 186004 5/8″ x 5/8″ Coupler Sleeve-Type
Bell & Gossett 5/8″ x 5/8″ sleeve type coupler for series PD and 60 with motors over 3/4 HP. 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.