| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bearing device for a driving wheel capable of making a contact state of a tooth surface good, improving an assembling property, suppressing looseness in a circumferential direction or axial misalignment, reducing a manufacturing cost, and enabling practical use. <P>SOLUTION: A rolling bearing 20 and a constant velocity universal joint 30 are unitized. The rolling bearing 20 is equipped with an external member 11, an internal member 8, and balls 13a, 13b. An outside joint member 32 is coupled to the internal member 8. An internal member corresponding surface 62 of a mouse potion 32a of the outside joint member 32 and an end portion of the internal member 8 are integrated. A projecting portion 41 having higher hardness than the end portion of the internal member 8 is formed on the internal member corresponding surface 62, and a recessed portion 42 extending in a diametrical direction by pressing of the projecting portion 41 is formed at the end portion of the internal member 8, thereby configuring a recessed/projecting fitting structure M. The outside joint member 32 and the internal member 8 are coupled through a fixing bolt 51 so as to separate from each other. <P>COPYRIGHT: (C)2010,JPO&INPIT |
