| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a magnetic fluid bearing for supporting a radial load as well as an axial load with low friction. <P>SOLUTION: The magnetic fluid bearing 1 comprises a plurality of magnetic poles 4 provided on the whole periphery of a bearing gap-forming face 7a of either one of a bearing outer ring 2 and a shaft 3 fitted in the bearing outer ring 2 via a bearing gap (g) in the state of being mutually decentralized in the circumferential direction. The other of the bearing outer ring 2 and the shaft 3 is formed of a non-magnetic material, and magnetic fluid 5 is held in the bearing gap (g) by the plurality of magnetic poles 4. Magnets 11 are arranged at both ends of the bearing, and a magnet 13 is provided on the end face of the non-magnetic material so that its face has the same polarity as opposite one of each magnet 11. <P>COPYRIGHT: (C)2007,JPO&INPIT |
