| 摘要 |
PURPOSE:To miniaturize an electromagnetic to be used, reduce the cost thereof and prevent a rotary unit from deflecting at a low rotational speed. CONSTITUTION:A device has a superconductive bearing part 2 comprising an annular permanent magnet part 7 concentrically and fixedly provided in a rotary unit 1 and annular superconductor parts 8a, 8b arranged so as to be opposed to the permanent magnet part 7. The device provides a magnetic bearing part 3 of using electromagnetic A1, A2, B1, B2 for controlling two radially directional positions orthogonal to each other of the rotary unit 1, in a position isolated in the axial direction from the superconductive bearing part 2. |
