Abstract: The invention relates to an axial rolling bearing having a cage which contains rolling bodies that are arranged between two running disks. The running disks each have a radial section that forms a raceway and an axially aligned collar which adjoins the raceway. The collars are aligned opposite to one another and overlap in the axial direction. The radially outer disk has a larger diameter than the radially inner running disk. According to the invention, the radial and the axial extent of the two collars of the running disks and the cage are coordinated with one another in such a way that, between them, a labyrinth seal, composed of a plurality of gaps, is formed, and the cage is guided on the collar of the radially inner running disk.