| 摘要 |
The present invention provides a spindle motor. The spindle motor 100 includes a rotor casing 142 for rotating a recording medium, a rotary shaft 141 securely mounted to the rotor casing 142 , a bearing 115 for rotatably supporting the rotary shaft 141 , a bearing holder 113 for securely supporting the bearing, with a locking part 114 protruding around the upper end of the outer circumferential surface of the bearing holder 113 , and a hooking part 150 provided in the rotor casing 142 to engage with the locking part 114 of the bearing holder 113 , thus preventing the rotor casing 142 from being removed from the bearing holder 113 . The hooking part 150 has a hook part 153 having a hook-shaped section. The hook part 153 has an angle of inclination of 10 ° relative to a horizontal surface.
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