Bearing unit for wheel

A bearing unit for wheel comprising:

• an outer member having a plurality of outer races on an inner periphery thereof;
• an inner member having a hub wheel being provided with a flange for attaching a wheel, and a plurality of inner races facing the outer races;
• a plurality of rows of rolling elements arranged between the outer races and the inner races that face with each other;
• and
• an outboard side constant velocity universal joint having an outer joint member, wherein:
• a pilot portion, which is fitted to an inner periphery of the wheel, is arranged on a different member other than the hub wheel,
• the hub wheel and the outer joint member of the outboard side constant velocity universal joint are plastically bonded by press fitting a male part having a tooth-shaped surface, arranged on one of the hub wheel and an outer joint member of the outboard side constant velocity universal joint to a female part arranged on the other of the hub wheel and the outer joint member of the outboard side constant velocity universal joint,
• the female part is fitted to the male part with a plastic deformation generated by the press-fitting of the male part, and
• a bonding between the male part and the female part is completed by the press-fitting of the male part.