| 摘要 |
A data storage device ( 10 ) includes a stator ( 20 ), a rotor ( 50 ) rotatable about the stator via a pair of bearings ( 26 ), a cover ( 70 ), and two data storage disks ( 80 ). The stator includes a baseplate ( 22 ), and radially extending stator laminations ( 32 ) under the baseplate. The bearings are fixed in top and bottom ends of the baseplate. The rotor includes a spindle shaft ( 52 ), a hub ( 54 ), and a drive member ( 56 ). The shaft is fixed in the bearings, and the hub is fixed to a top end of the shaft. The drive member is fixed to a bottom end of the shaft, at a side of the baseplate opposite from the hub. The cover is fixed to a bottom of the baseplate, surrounding the drive member. The cover helps prevent contaminants such as dust from entering a clean chamber of the data storage device that surrounds the shaft.
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