Abstract: A torsional vibration damper comprises an internal flange body and an external inertial body each having a plurality of intermeshing damper laminae fastened thereto along a margin and defining therebetween interstital spaces filled with a highly viscous liquid and sealed off with resilient material. The damper laminae are generally cylindrical and are constructed in difference diameters in such gradation that the desired interstital spaces result between one lamina and the next larger one.