| 摘要 |
The present invention provides a motor including: a stator; a rotor tube which is disposed inside the stator; a rotor core assembly which is coupled to an outer circumferential surface of the rotor tube; and a shaft which is coupled in the rotor tube, in which the rotor tube is divided into at least two stepped regions having different diameters, and includes a multiple-row bearing which has an inner wheel coupled to an outer circumferential surface of any one of the at least two stepped regions, and rotatably supports the rotor tube, thereby providing advantageous effects of ensuring structural stability of the motor, and minimizing a space occupied by a bearing. |
