| 摘要 |
<p>A flanged inner ring (1) for a wheel hub comprises a cylindrical body (2) providing a shoulder (3) and a mounting cylindrical surface (4) which is partially hardened and is axially bounded between the shoulder (3) and a rolled edge (5). A small inner ring (6) provides an inner cylindrical surface (61) mounted on the mounting surface (4), two radial annular faces (63, 62) in contact with the shoulder (3) and with the rolled edge, respectively, and two radiused surfaces (65, 64) connecting the inner cylindrical surface (61) to the annular faces (63, 62). The mounting surface (4) has a hardened area (z) the axial length (lz) of which is less than or equal to an axial length (10) of the small inner ring (6) minus a length of a connecting radius (R1) of a first one (64) of the two radiused surfaces (64, 65).</p> |
