| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rolling bearing device which has improved fatigue strength of a rotating member by providing a shot-peening process on a recess of the rotating member. <P>SOLUTION: The recess 3d, which is open to the outer side of a vehicle and dented around the central axis L1, is formed on an inner shaft 3 (the rotating member) of a hub unit 1 (the rolling bearing device). The recess 3d is formed by connecting arc faces 3d1, 3d2, whose center of curvatures O1, O2 are positioned on the central axis L1. The curvature radius r1 of the arc face 3d1 is set so as to become larger compared with opening radius R1 specified by an arc plane of projection when the arc face 3d1 is projected on the plane of projection P intersecting perpendicularly with the central axis L1. The curvature radius r2 of the arc face 3d2 is set so as to become larger compared with opening radius R2 specified by an arc plane of projection when the arc face 3d2 is projected on the plane of projection P intersecting perpendicularly with the central axis L1. <P>COPYRIGHT: (C)2010,JPO&INPIT |
