| 摘要 |
PURPOSE:To obtain a dynamic damper which has high strength and excellent dampability in a temperature range extending from low temperature to high temperature, by utilizing a rubber material which is obtained by sulfurizing partially hydrogenated unsaturated acrylonitrile - conjugate diene base copolymer ized rubber as a dynamic damper's rubber material. CONSTITUTION:A fly wheel 10 is such a structure as an annular mass member 24 locating on its outer circumferential portion is supported by an annular rubber element 26. A rubber material which contains acrylonitrile of not less than 30wt% and is obtained by sulfurizing partially hydrogenated unsaturated acrylonitrile - conjugate diene base copolymerized rubber of which conjugate diene unit ingredients are hydrogenated not less than 80% is used for the rubber element 26. |
