A vehicle axle assembly is provided having a hub which is mounted on a cylindrical axle body by way of a ball bearing so as to be rotatable about a central longitudinal axis, wherein the ball bearing has an inner race connected to the axle body and has an outer race connected to the hub. The vehicle axle assembly includes an axially inner shaft sealing ring and an axially outer shaft sealing ring which are sealingly arranged between the two races and which delimit a ring-shaped chamber between the two races a first pressure medium line which extends through the inner race or one of the two shaft sealing rings and which opens into the ring-shaped chamber; and a second pressure medium line which extends from the ring-shaped chamber through the outer race and which is configured to be connected to a wheel fastened on the hub.