A wheel bearing device includes a hub ring, a double-row bearing and a
constant velocity universal joint which are unitized together. At least
one of double-row inner raceways of the bearing and a wheel mounting
flange are formed on a hub ring. The hub ring and a stem portion of a
joint outer ring of the constant velocity universal joint are fitted
through a torque transmission assembly, wherein a pilot member as a
separate element having a wheel guide portion and a brake guide portion
is fitted to a side-end portion of the wheel mounting flange of the hub
ring, and the hub ring and the pilot member are fixed to the joint outer
ring by swaging.