the latter element does not rest against the jacket surface of the respective end face of the raised ring which faces the gap of the ring but rather against the end face 27 of the ring that is offset in the axial direction i e in the case of fig2 the end face 27 of inner ring 2 u2032 shown on the left there a fully circumferential groove 28 is present into which the screws 21 u2032 are turned as in the previously described embodiment the relative dimensions of the groove 28 and the screws 21 u2032 are the same as in the embodiment according to fig1 here again a thrust ring 24 u2032 can be provided whose cross section can correspond to that of the thrust ring 24 from fig1 in all cases the axis of curvature about which both the sealing ring 12 12 u2032 and the thrust ring 24 24 u2032 are curved corresponds to the axis of rotation of the rotary bearing 1 1 u2032 it should of course be kept in mind that in the case of the thrust ring 24 according to fig1 the axis of curvature is oriented parallel to the particular ring cross section whereas in the case of the thrust ring 24 u2032 of fig2 it is oriented approximately perpendicular to.