PRELOADING APPARATUS OF SMALL-SIZED STEPPING MOTOR AND SMALL-SIZED STEPPING MOTOR HAVING THE SAME

摘要

The present invention provides a preload device for a small step motor. The preload device for a small step motor includes a pair of rotation support members for rotatably supporting both ends of a rotor having a shaft; An elastic member support groove formed on any one of the pair of rotation support members; And an elastic member located in the elastic member support groove and elastically pressing the rotation support member and the rotor together. The present invention also provides a small stepping motor having the preloading device.