| 摘要 |
PURPOSE:To eliminate couple of forces at the contact of a bearing and a shaft when a frame is bonded to a stator by forming a recess on the outside of the frame and securing so that a bearing is disposed in the recess. CONSTITUTION:A frame 10, to which a bearing 11 is secured, is formed with a bearing securing unit by forming a recess at the side (inside) of a rotor in such a manner that, when a shaft 7 is engaged, the bearing 11 is disposed at the contacting surface A between the shaft 7 and the bearing 11 as designated by a dotted chain line showing the extension line of gravity direction by the center W of gravity of the frame 10. When bonded in this state, no inclination of the frame 10 occurs, and no twist occurs between the shaft 7 and the bearing 11, thereby eliminating the problem of improper starting. |
