Release device for a pulled motor vehicle clutch, comprising - a clutch release bearing with a radially outer and a radially inner bearing ring (18; 20) which together define a centre axis of the clutch release bearing, - one of the bearing rings (18; 20) being provided so as to circulate with the motor vehicle clutch and having an axial projection, further comprising - a release ring which is in or can be brought into an operative connection with the axial projection and with a release member of the motor vehicle clutch, - an insertion contour and an axially following annular groove with a first stop contour being configured on the axial projection or on the release ring, and - a clearance which is delimited by a second stop contour being provided on the respectively other part of axial projection and release ring, and - the release device comprising a radially elastically deformable load ring which is in or can be brought into bearing contact with the stop contours, and - the insertion contour having a deformation section for the load ring and a centring section on that axial side of the deformation section which faces away from the annular groove, - the deformation section extending from an axial starting position as far as an end position which is situated axially between the starting position and the annular groove, and, - at the starting position, an associated bearing diameter corresponding approximately to an active diameter of the load ring in the relieved state, and, - at the end position, an associated bearing diameter and the radial deformation of the load ring in each case reaching an extreme value, characterized - in that the deformation section has a contour line, the upward gradient of which decreases in the slide-on direction of the load ring, and - in that the insertion contour is of convex design with regard to the slide-on direction of the load ring by means of a continuous curve. - a clutch release bearing with a radially outer and a radially inner bearing ring (18; 20) which together define a centre axis of the clutch release bearing, - one of the bearing rings (18; 20) being provided so as to circulate with the motor vehicle clutch and having an axial projection, further comprising - a release ring which is in or can be brought into an operative connection with the axial projection and with a release member of the motor vehicle clutch, - an insertion contour and an axially following annular groove with a first stop contour being configured on the axial projection or on the release ring, and - a clearance which is delimited by a second stop contour being provided on the respectively other part of axial projection and release ring, and - the release device comprising a radially elastically deformable load ring which is in or can be brought into bearing contact with the stop contours, and - the insertion contour having a deformation section for the load ring and a centring section on that axial side of the deformation section which faces away from the annular groove, - the deformation section extending from an axial starting position as far as an end position which is situated axially between the starting position and the annular groove, and, - at the starting position, an associated bearing diameter corresponding approximately to an active diameter of the load ring in the relieved state, and, - at the end position, an associated bearing diameter and the radial deformation of the load ring in each case reaching an extreme value, characterized - in that the deformation section has a contour line, the upward gradient of which decreases in the slide-on direction of the load ring, and - in that the insertion contour is of convex design with regard to the slide-on direction of the load ring by means of a continuous curve.