| 摘要 |
Disclosed herein is a coupling structure for coupling a stopper supporting a hub and a sleeve of a spindle motor to a protrusion part of the hub. Particularly, coupling force between the stopper and the protrusion part of the hub is improved, thereby making it possible to improve reliability in coupling between the hub and the sleeve. In addition, it is possible to maintain coupling reliability of an assembly of the hub and the sleeve against vibration generated at the time of driving of the motor, external impact, or the like. |
