Torsional damper device

A torsional damper device in particular for a clutch plate comprising at least two coaxial parts mounted to rotate relative to each other within defined limits of relative angular movement, a transversely extending flange on one of said coaxial parts, two transversely extending guide rings on the other of said coaxial parts, said guide rings being spaced from and attached to each other and disposed one on each side of said flange, circumferentially acting elastic means disposed between and adapted to act circumferentially on said coaxial parts so as to resist said relative angular movement, apertures in said guide rings and flange for housing said elastic means, said elastic means comprising at least one elastic member, a bearing member circumferentially and operatively disposed between said elastic member and said guide rings, said bearing member having two transverse arms extending perpendicularly to the axis of said device and circumferentially overlying the respective guide rings, said arms being axially spaced from and out of contact with said flange, constant frictional contact being provided between said arms and the respective guide rings, whereby frictional torque is produced between said arms and guide rings in the course of relative angular movement therebetween.