Provided is a wheel bearing assembly for rotatably mounting and supporting a wheel of a vehicle on a vehicle body. The wheel bearing assembly includes: a wheel hub to which the wheel of the vehicle is mounted and configured to rotate together with the wheel of the vehicle; at least one inner ring mounted on an outer circumferential surface of the wheel hub in a press-fitting manner; an outer ring mounted on and fixed to a vehicle-body-side member; a plurality of rolling elements configured to rotatably support the wheel hub and the inner ring relative to the outer ring; and a constant velocity joint coupled to the wheel hub. The constant velocity joint may be configured such that an outer axial end surface of a shoulder portion is in contact with an inner axial end surface of the wheel hub or the inner ring.