Axiality measurement system of motor end cover

This embodiment provides an axiality measurement system of motor end cover, including strutting arrangement, drive arrangement and detection device, when the motor end cover rotation on strutting arrangement is fixed in the drive arrangement drive, utilize the distance at detection device center of full bearing room in to the motor end cover to measure in succession, thereby obtain a plurality of radius data record, it obtains major radius and short radius in can following a plurality of radius data record to calculate through simple comparison, utilize the computational method that describes can conveniently obtain the offset of this motor end cover according to this major radius and short radius in this application. The offset of this motor end cover returns it the factory or does and scrap the processing if being too big to on avoiding assembling the motor with it, thereby guarantee the operating mass of motor.