| 摘要 |
A hard disk drive includes a base, a cover coupled to an upper portion of the base to accommodate a plurality of parts between the cover and the base, a spindle motor including a FDB (fluid dynamic bearing) having an FDB fixing portion fixed to the base and an FDB rotation portion partially inserted in an inside of the FDB fixing portion and which rotates with respect to the FDB fixing portion, a hub to support a disk, having an end portion coupled to the FDB rotation portion, and which rotates with the FDB rotation portion and a power generation portion to generate power to rotate the hub, and an anti-stick portion provided with at least one of the cover and the spindle motor and which prevents the FDB rotation portion from being restricted as the FDB rotation portion partially contacts the FDB fixing portion by an impact applied to the spindle motor when the disk rotates.
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