| 摘要 |
PURPOSE: To produce high assembly accuracy through a simple formation and moreover to correspond to high revolutions in a rotating bearing device. CONSTITUTION: A rotating bearing device has a shape composed by unitedly piling up conical bottoms, and a rotary block 14 where a center axis 15 corresponding to an axis formed by connecting the tops of cones is piercedly arranged is provided inside a bearing block 20 in which a space having the same shape as the rotary block 14 is formed, and fixed pressure fluid is supplied into bearing spaces being minute clearances 17, 18 between the bearing block 20 and the rotary block 14 by fluid supply means 1, 2, 3, 4, 16. Thus the rotating bearing device is driven centering around the center axis 15 of the rotary block 14, and has thereby high assembly accuracy and moreover can correspond to high revolutions. |
