| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bearing device that can enhance bearing rigidity, durability or the like by employing a radial roller bearing of a total-roller type, and can suppress the deformation of a raceway ring member caused by a skew force of the radial roller bearing at the rotation of the bearing. <P>SOLUTION: The bearing device comprises the radial roller bearing 15 which is arranged in an annular space between a center shaft 8 supported by a support 6 and a center hole 11 of a rotating body 10, and a thrust roller bearing 20 which is arranged between the support 6 and the rotating body 10. The radial roller bearing 15 is constituted into the total-roller type in which the external peripheral face of the center shaft 8 is set as an inner ring raceway face, and which has a plurality of rollers 16 which are rollingly arranged with the internal peripheral face of the center hole of the rotating body 10 as an outer ring raceway face. The thrust roller bearing 20 comprises a raceway ring member 40 arranged between the support 6 and the rotating body 10, the plurality of rollers 21 and a cage 30. At the raceway ring member 40, there is formed an annular protrusion 43 which can contact with the vicinity of the center of end faces of the plurality of roller 16 of the radial roller bearing 15. <P>COPYRIGHT: (C)2012,JPO&INPIT |
