| 摘要 |
A wheel hub unit comprises a steel outer rolling path member (4) provided with a vehicle body installation flange (43) and an inner rolling path surface, a steering knuckle (60) being connected to the vehicle body installation flange (43); inner rolling path members (2, 3) provided with an outer rolling path surface; rolling members (5, 6) arranged between the inner rolling path surface of the outer rolling path member and the outer rolling path surface of the inner rolling path members; and an annular element (90) equipped in the inner circumference of the steering knuckle, contacting with one axial end face of the outer rolling path member, and made from materials with higher ionization tendency than that of the outer rolling path member. |
