Abstract: An apparatus and method of manufacturing a damping flywheel having two coaxial masses one of which is designed to be rotationally integral with a drive shaft such as the crankshaft of an internal combustion engine, while the other coaxial mass is designed to be connected with a driven shaft such as the input shaft of a gear box. The first mass includes a chamber that may be at least partially filled with a pasty or viscous agent and houses a circumferentially acting resilient member disposed between the two coaxial masses. The agent is deposited at the outer periphery of the first mass before the chamber is closed.