| 摘要 |
PURPOSE: A disk rotation driving apparatus is provided, which rotates a balance member in a moving space and cancels a vibration according to a rotation of a disk. CONSTITUTION: The disk rotation driving apparatus comprises: a rotation axis; a turntable (13) to be installed to the rotation axis for mounting a disk type recording media; a spindle motor (2) for rotating a rotation body; and an automatic position adjusting means (12) for locating a center of a composed rotation body including the rotation body, the turntable, the spindle motor (2), and the disk type recording media on the rotation axis, including a case body (21), a plurality of balance member, and an adsorbing magnet (22). Thereby, it is possible to decrease the number of component and manufacturing cost.
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