Spring plate arrangement with anti-rotation means and vibration damper with the spring plate arrangement

A spring plate arrangement for a vibration damper, having a damper tube with a spring plate for supporting a suspension spring, wherein the spring plate has a contact portion which circumferentially contacts an outer circumference of the damper tube, a receiving portion having a cylindrical inner contour which adjoins the contact portion via a shoulder and is radially spaced a constant distance from the damper tube so as to form an annular space, and a supporting portion adjoining the receiving portion for axially supporting the suspension spring, with a retaining ring for securing the spring plate at the damper tube in an axial direction (AR), wherein the damper tube has a receiving groove which is arranged inside of the annular space and in which the retaining ring is received, and wherein the retaining ring has at least one radially protruding clamping contour at its outer circumference and the clamping contour cooperates with the receiving portion in a frictionally engaging manner to secure the spring plate against rotation,

• wherein the clamping contour is formed as a spring tab which is angled and/or curved relative to the outer circumference of the retaining ring to form a slanting surface directly between the cylindrical inner contour of the contact portion and the annular space.