| 摘要 |
PROBLEM TO BE SOLVED: To improve deflection precision of a wheel mounting flange 6, forming the mounting surface of the brake rotor of a hub wheel 2a, of a wheel bearing device and coaxiality of a brake pilot part 9b and to eliminate a need for secondary turning of the hub wheel 2a. SOLUTION: A brake pilot part 9b of a hub wheel 2a is held, a backing plate 32 is applied on the side on the outer side of the wheel mounting flange 6. By pressing the end face of a small part 10 of the hub wheel 2a in an axial direction by a pressure clamp 33, the side on the outer side of the wheel mounting flange 6 forms a reference surface and at least bearing track surface 7 of the hub wheel 2a is ground. |
