| 摘要 |
<p>A small-sized motor equipped with a worm reducer according to the present invention includes a cavity portion 10 formed in a gear case 17, which accommodates a worm 6 mounted on a motor shaft 4 and a worm wheel 7. The cavity portion 10 receives a front end of the motor shaft 4 and does not communicate with the exterior thereof. A bearing holder 22 holding a bearing device is disposed in the cavity portion 10 such that a metallic-fiber-containing resin spacer or metallic spacer 30 is disposed between the bearing holder 22 and the gear case 17. Thrust adjustment for the motor shaft 4 is performed through application of thrust to the motor shaft 4 after the resin spacer is softened through induction heating effected electromagnetically from outside the gear case, or after a gear case protrusion, which is in contact with the metallic spacer, is softened through application of heat transmitted from the metallic spacer heated through induction heating effected electromagnetically from outside the gear case. Thus, the motor shaft can be fixedly positioned accurately with respect to the thrust direction. <IMAGE></p> |
