TORQUE DAMPING DEVICE COMPRISING A FRICTION ELEMENT COMPRISING A FRICTION MATERIAL NOT GENERATING NOISE WHEN OPERATING

摘要

The invention concerns a torque damping device, in particular for motor vehicles, comprising two coaxial parts (11, 12) mounted mutually rotating, countering elastic means and a friction device (30) operating between said parts and including at least one element (31) made of friction material integral with one of said parts and in friction contact with a friction bearing (16) integral with the other of said parts: the friction material consisting of a basic resin and a mineral filler, which mineral filler comprises barium sulphate; such a friction material does not generate noise when operating.