the occurrence of reaction forces the principle of action is shown in fig2 the second flywheel ring 2 is provided in the area of its inner circumference with axial projections engaging the intervals between the fingers 10 these projections transmit the rotary movement to the fingers 10 whereby the damping system formed by the parts 5 7 8 9 and 11 after exceeding a certain minimum rotation of the first flywheel ring 1 with respect to the second flywheel ring 2 becomes increasingly ineffective until the elevations 20 of the pressure ring 7 and angle ring 11 finally slide only on the pads 19 of lower coefficient of friction the heat shield 12 affixed to the second flywheel ring serves for the isolation of the spring 6 consisting of rubber elastic material against undesired heating the configuration shown in fig3 is similar to the one described above in this case too the spring 6 consisting of rubber elastic material is of annular shape and is affixed to bonding surfaces of the first flywheel ring 1 and second flywheel ring 2 encompassing one another radially the spring 6 is at an axial distance on both sides from the confronting walls of the first flywheel ring 1 and the chambers thus formed are sealed dynamically from the second flywheel ring 2 and filled with silicone oil of a viscosity of 100 to 200 000 centistokes the latter at the same time wets both sides of the toothed disks 27 reaching into the chambers which are affixed to.