Abstract: A belt pulley having an integrated torsional oscillation damper. The torsional oscillation damper comprises a hub ring that encloses a flywheel ring. A radial first space is formed between the hub ring and the flywheel ring, wherein a first spring body is arranged in a first gap formed by the radial first space. A bushing is disposed between the hub ring and the flywheel ring to form a radial second space, wherein a second spring body is arranged in a second gap formed by the second radial space.

Abstract: A vibration absorber includes an absorber mass and at least one spring element formed of an elastomer material. The absorber mass is arranged for movement on the spring element and is movable with a phase displacement relative to vibrations introduced due to operating conditions. The spring element is fixed on a vibration generator. A supplementary spring is assigned to the spring element and acts in parallel therewith to compensate for temperature effects. The supplementary spring has a spring stiffness. An aid is provided for changing the spring stiffness of the supplementary spring.