The invention relates to a dual-quality fly wheel having a torque limitation device. Described in the dual mass flywheel has the quality of primary and secondary, described the stated quality of primary and secondary quality can resist the effect of arc spring component relative to each other, among them, the described arc spring component side support it is primary quality but on the other side support in secondary flange, described secondary flange through friction device connected to the secondary quality, among them, it is on the quality of secondary decorate dish spring diaphragm, diaphragm described disc springs and the quality of primary contact.