| 摘要 |
<P>PROBLEM TO BE SOLVED: To allow press-fitting work of a bearing metal to be accurately performed by ensuring coaxiality and cylindricity of the bearing metal and a press-fit hole. <P>SOLUTION: The press-fit hole (34) of a housing body (31) includes a press-fit portion (34a) having an inner diameter smaller than the outer diameter of the bearing metal (35), and a guide portion (34b) having an inner diameter slightly larger than the outer diameter of the bearing metal (35) on the nearer side in the press-fitting direction than the press-fit portion (34a). After the bearing metal (35) is inserted in the guide portion (34b) and is held concentrically with the press-fit portion (34a), the bearing metal (35) held by the guide portion (34b) is press-fitted into the press-fit portion (34a). <P>COPYRIGHT: (C)2012,JPO&INPIT |
