18 u2033 is provided which is axially supported on the crankshaft 16 via a radially inwardly disposed section of the primary flywheel mass 12 the flywheel masses 12 14 are rotationally elastically coupled to one another by a coupling device 26 fig2 shows a section through the dual mass flywheel 10 perpendicular to the axis of rotation r along the line aa with the representation of details of the support in the region about the transmission input shaft 20 having been omitted for reasons of clarity the individual components of the coupling device 26 can be seen from fig2 they include a plurality of pivot levers 28 which are pivotably supported with respect to a respective pivot axle 30 each of the pivot levers 28 has a driver arm 32 and a lever arm 34 the two arms 32 34 include an angle which is smaller than 180 u00b0 and larger than 90 u00b0 the geometry of the pivot levers 28 can however also have characteristics differing therefrom if other circumstances are present in the dual mass flywheel 10 due to the construction the respective driver arm 32 of the pivot levers 28 extends from the corresponding pivot axle 30 toward an end of the pivot lever 28 which is in contact via a driver roll 38 with a control surface on a control section 36 formed at the primary flywheel mass 12 the control section 36 is shown formed on an inner cam associated with the primary flywheel mass 12 the lever arm 34 in contrast is in contact at its end remote from the pivot axle 30 with an end of an elastic element shown herein as a helical spring 40 the other end of the.