Rotary vibration damper

A vibration damper for a drive train of a motor vehicle, comprising:

• a support body which is rotatable about an axis of rotation;
• a damper mass which is coaxial with respect to the support body and which is arranged with a radial spacing around the support body;
• and
• an elastomer layer comprising a plurality of spring elements, which connect the support body and the damper mass to one another, and radial guide elements, which are configured to guarantee a defined relative rotation between the damper mass and the support body,
• wherein the support body has axial travel limiting flange which extend on the support body in the radial direction relative to the damper mass so as to limit a displacement of the damper mass in axial direction relative to the support body.