Pendulum rocker damper with an axis of rotation for a drive train

A pendulum rocker damper with an axis of rotation for a drive train, having at least the following components:

• a primary side that is connected in a torque-transmitting manner to a first outer connection;
• at least one rocker element;
• at least one first energy storage element for exerting a first pretensioning force;
• at least one roller;
• and
• a secondary side that is connected in a torque-transmitting manner to a second outer connection,
• wherein the at least one roller is mounted such that it can roll on a rocker-side roller track and an outer roller track that is complementary to the rocker-side roller track and is pretensioned against the roller tracks by means of the first pretensioning force of the at least one first energy storage element,
• wherein at least one second energy storage element is provided in the roller or in at least one of the roller tracks for exerting a second pretensioning force, and
• wherein the roller is pretensioned against at least one of the roller tracks, perpendicular to the track, by means of the second pretensioning force, at least in a resting position of the first energy storage element.