| 摘要 |
PURPOSE:To eliminate looseness in the thrust direction of a bearing by installing the bearing at a prescribed angle by which a load of the thrust direction is generated in the bearing concerned against a plane containing a shift center of two shafts. CONSTITUTION:A bearing 13 is installed so as to be fitted to a shaft 11A or 11B, and it is installed at a prescribed angle theta by which a load of the thrust direction is generated in the bearing against a plane containing a shaft center of the two shafts 11A, 11B. When the shaft 11A is fixed to a housing 10 and the shaft 11B is pressed by a force of T by a plate spring 14, a prepressure Ts applied in the thrust direction of the bearing 13 becomes Ts=Tsintheta, and by this prepressure Ts, looseness in the thrust direction of the bearing 13 is eliminated, and a carriage 12 is provided on a stable position in the (x) direction and in the (y) direction. |
