| 摘要 |
PROBLEM TO BE SOLVED: To provide a torsional vibration attenuation device capable of obtaining predetermined vibration attenuation performance by stably rolling a mass body, and capable of improving durability of the mass body and a rolling surface.SOLUTION: In a torsional vibration attenuation device 1 in which a mass body 3, which reciprocating in the rotation direction of a rotor 2 by fluctuation of torque in a state of rotating the rotor 2, is provided on the outer peripheral part of the rotor 2 rotating with torque, the rotor 2 is constituted by laminating a plurality of member 2a, 2b, in which a rolling surface 5 on which the mass body 3 reciprocates by fluctuation of torque is formed, in a state of making respective rolling surfaces 5 consistent. |
