| 摘要 |
PURPOSE:To enable to reduce the weight and the size by supporting a rotor by bearing metals. CONSTITUTION:An output shaft 6 is secured to a rotor 4b together with a sleeve 7, a bearing metal 8 has an inner diameter matched to the shaft 6, a collar is secured to the sleeve 7, and a body is inserted into a stator 1a. The rotor 4b mainly receives a radial load at the cylindrical portion of the metal 8, the collar receives a thrust load, and the shaft 6 and the sleeve 7 restrict the plane fluctuation of the rotor 4b. Then, in order that felt 9 which includes lubricating oil supplies oil to both the collar and the body of the metal 8, it is disposed outside the cylindrical portion on the collar. When the above bearing is metallized, it can be reduced in weight and size. |
