Flywheel with dynamic damper

A flywheel in combination with a dynamic damper in which an elastic member having a shape an being formed from a material which can dampen all the vibrations transmitted from a crank shaft to the flywheel, the dynamic damper is fixed to an engine side face of the flywheel which is rigidly fastened to the engine crank shaft, an annular weight having a specified mass, said annular weight being floatingly supported, at an inner peripheral face, thorough the elastic member so as not to contact the flywheel, said elastic member being a solid annular rubber ring which is continuous over an entire inner circumferential periphery of the weight, a cross section of the rubber ring is formed into a substantially rectangular shape having a width three times as large as a thickness, a hardness of the rubber ring is preset to an appropriate hardness correspondent to the mass of the weight, the rubber ring being secured by baking an inner peripheral face of said rubber ring to an outer peripheral face of a bracket formed into an approximately L-shape cross section and fastened to the engine side face of the flywheel, an outer peripheral face of the rubber ring is stuck by baking to the inner peripheral face of the annular weight, the flywheel has a ring gear installed on an outer peripheral part, the weight being formed into an annular shape to be housed near an engine side face of the flywheel and with specified clearances kept therebetween at a radial inside of the ring gear, and the mass of the weight being preset to a value that will dampen vibrations of said flywheel.