| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bearing device, in which a rotary member is deflected slightly and can be maintained in a constant rotating state. <P>SOLUTION: In a supporting structure, a first gear mechanism is constructed close to a rolling bearing at an axial inner side with respect to the rolling bearing in the rotary member 2 which is rotatably supported by the rolling bearing 4, at least one side of which is extended to an axial outer side with respect to the rolling bearing, and the extension of which is cantilevered by the rolling bearing, and a second gear mechanism is constructed in the extension cantilevered by the rolling bearing. The supporting structure includes: a rotating structure 8a constituting a rotating portion together with the rotary member; and a non-rotating structure 14 constituting a non-rotating portion together with a housing 18 to which the rolling bearing is mounted. A thrust bearing 28 is interposed between portions at which the rotating structure and the non-rotating structure face in the axial direction. <P>COPYRIGHT: (C)2012,JPO&INPIT |
