A flywheel comprises a first flywheel mass (2) for connection with a crankshaft, a second flywheel mass (4) for connection with a gearbox, a spiral spring unit (6) for resiliently connecting primary and secondary flywheel mass (2, 4), a damping unit (7) in parallel to said spiral spring unit (6) with respect to second flywheel mass (4), and a gap (8) provided to increase the damping torque of damping unit (7) acting between said primary and secondary flywheel mass (2, 4) at a predefined angular displacement of primary flywheel mass (2) with respect to secondary flywheel mass (4).