| 摘要 |
PURPOSE:To permit the centering of a bearing, and to ensure positioning accuracy in the direction of the thrust of a rotor shaft for a long period of time and the sealing property of a bearing unit. CONSTITUTION:When a bearing unit 25 of a rotor shaft 20 is fitted into a regulating bearing 9, the regulating bearing 9 is moved in the radial direction thereof and the deviation of the center is absorbed automatically. Synthetic resin 27, poured into the cavity 11 of a casing 2 by pressure, is cooled and solidified whereby the regulating bearing 9 is fixed. The synthetic resin 27 is pressurized and poured into the resin pouring section 17 of a housing 14 to push a thrust bearing 18 and position the direction of the thrust of the rotor shaft 20. Lid bodies, covering pouring ports 7a, 17a, are formed integrally by the poured synthetic resin 27 whereby the lid bodies are abutted against the rims of the pouring ports 7a, 17a by pressure due to the thermal shrinkage of them upon cooling the synthetic resin and the sealing property of the lids can be ensured. |
