Functional Garden Hanging,Metal Birdfeeder,Glass Decorated Hanging wall ornament garden decoration Co., Ltd. , http://www.gardendecorat.com When repairing the motor, it is often necessary to repair the parts of the shaft (Fig. 1) in the rotor of the motor. When repairing the outer surface of the rotor shaft and replacing the new shaft, we use the outer circle of the rotor as the reference to machine the shaft. The mutual position of the rotor and the shaft is required to optimize the gap between the rotor and the stator during normal operation. The specific practices are as follows: