| 摘要 |
PURPOSE:To form a bearing to correspond to rotation at a high speed avoiding the bearing from its increase of size and complication of structure by providing an intermediate race-driving mechanism between an inner race and an outer race while meshing and engaging an element in the intermediate race-driving mechanism. CONSTITUTION:A triple race bearing has an inner race 1, outer race 2 and an intermediate race 3 arranged between these inner and outer races. An intermediate driving mechanism contains an inner collar 11, outer collar 12 and two or more driving shafts 14. A tooth profile, meshing with a tooth profile formed in a peripheral surface of the inner collar 11 and an internal peripheral surface of the outer collar 12, is formed in a peripheral surface of an intermediate collar 17. Thus, the largeness of size of the bearing and its complication can be avoided so that the bearing is enabled to correspond to a rotation at a high speed. |
