The concentricity of a water pump is the degree to which the motor shaft is the active axis and the pump shaft of the water pump are coaxial.
When the concentricity deviation between the water pump and the motor shaft is too large, it can cause harm to the water pump. Long term operation of water pumps and motor shafts that are not concentric can cause severe wear and tear on their bearings (or bushings), leading to equipment damage; The lack of concentricity between the water pump and the motor shaft can also cause noise and vibration during the operation of the water pump, shorten its lifespan, and affect its efficiency.
Therefore, the concentricity of the water pump should be carefully tested and adjusted during installation.
