Ball joint for motor vehicles

A ball-and-socket joint for motor vehicles has a ball pivot with at least a joint ball accommodated rotatably and/or pivotably in a bearing shell of a housing and a pivot section. A sealing bellows is provided with a first edge area fastened to the housing and withe a second edge area has a sliding connection with a thrust ring, which is fixed on the pivot section and comprises an axial shoulder and a radial shoulder, wherein the radial shoulder of the thrust ring forms a wave-shaped contour.