| 摘要 |
PURPOSE:To make a rotating shaft freely removable together with a rotating member by positioning and holding the rotating shaft in a thrust direction in contact with a bearing on an end of plural bearings. CONSTITUTION:Force is applied to a rotor yoke 8 which is to be tensile, whereby force is applied to a flange 7 downward and the flange 7 is brought into contact with an inner ring 5b of a bearing 5 to have it pushed down. Thus a thrust load is applied to the inner ring 5b downward by force applied to the flange 7, and the thrust load is transmitted and applied to an inner ring 5b' of a lower bearing 5' via a pressurized spring 19. Relatively stated, a thrust load is applied to outer rings 5a, 5a' upward. The bearings 5, 5' are pressurized by the thrust load to eliminate rattling, and also contact of the flange 7 with the inner ring 5b makes a spindle shaft 4 positioned and held in a thrust direction. |
