| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inner ring for a rolling bearing, improved in durability by preventing a grinding burn of the inner ring, and a bearing device for a wheel equipped with the inner ring for the rolling bearing. <P>SOLUTION: The bearing device for the wheel includes the inner ring 3 axially fixed to a hub wheel 2 with a caulking part 2c formed by plastically deforming a small-diameter step 2b of the hub wheel 2 radially outward. An annular recess 11 is formed at the large end face 3b of the inner ring 3. The radial dimensions of a chamfer part on the large end face 3b side and a chamfer part on the small end face 3c side are set to predetermined values, and the area of the large end face 3b and the area of the small end face 3c of the inner ring 3 are set to substantially the same. The depth of the recess 11 is larger than a grinding allowance and set in a range of 0.15-1.0 mm. <P>COPYRIGHT: (C)2010,JPO&INPIT |
