The invention relates to a dual mass flywheel (1) for a motor vehicle comprising: a primary inertia flywheel (2) intended to be fixed at the end of a crankshaft, and a secondary inertia flywheel (3), one from rotating relative to each other about an axis of rotation X; a damping means for transmitting torque and cushion the acyclic rotation between the primary and secondary inertia flywheels (2) and (3), said means including friction means (24, 25, 26) arranged to exert a frictional load torque between the primary and secondary inertia flywheels (2) and (3) in an angular displacement between said primary and secondary inertia flywheels (2) and (3); said dual mass flywheel (1) being characterized in that the damping means comprise a resilient blade (17a, 17b) being integral in rotation with one of the primary and secondary inertia flywheels (2) and (3) and provided with a cam surface (20); and in that the damper comprises a cam follower (21) carried by the other of the primary and secondary inertia flywheels (2) and (3) and arranged to cooperate with said cam surface (20); said cam surface being arranged such that, for an angular movement between the primary and secondary inertia flywheels (2) and (3) relative to an angular rest position, the cam follower (21 ) exerts a bending stress on the resilient blade (17a, 17b) producing a reaction force capable of biasing said primary inertia flywheels (2) and secondary (3) toward said angular position.