| 摘要 |
A plate form housing includes a winding. A sleeve which is a bearing is provided in a bearing mounting hole formed in the housing so as to be in the central position of the winding. A shaft mounting a rotor having a magnet confronting the winding supported on the sleeve. A magnetic disk is provided at the end of the shaft. The sleeve is fixed in the bearing mounting hole of the housing by using a conductive adhesive. In this manner, discharge breakdown or destruction of the information recorded in a magnetic disk due to electric charge generated in the magnetic disk rotating at high speed is prevented.
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