| 摘要 |
PURPOSE:To enable to prevent abnormal vibration of a rotor, by carrying out disposition and setting of balls by means of magnetic attraction, and eliminating a ball disposing plate. CONSTITUTION:A movable plate 2 is supported by balls 4 comprising three magnetic members onto a bearing base plate 3. The bearing base plate 3 is provided with a ball positioning magnet 6 in a position of the same phase with the balls 4 so that its construction can position the balls 4 by means of magnetic attraction of the balls 4 and the ball positioning magnet 6. Therefore, a ball disposing plate which has been used in a bearing for a ball support type high speed rotor can be eliminated, and abnormal vibration caused by the ball disposing plate can be prevented.
|
