BEARING DEVICE FOR VEHICLE WHEEL

Provided is a bearing device for a vehicle wheel that is suitable in being able to prevent impairment in assemblability of the bearing device for a vehicle wheel to a knuckle without cost increase. A bearing device for a vehicle wheel () is provided with an inner member and an outer ring () which is an outer member having a vehicle-body-mounting flange part (), wherein the outer ring () has a pilot part () disposed inward of the vehicle-body-mounting flange part (), and the pilot part () has a fitting portion () configured to be fitted to a knuckle () and a guiding portion () having a diameter which gradually decreases inward from the inner-side end of the fitting portion ().