| 摘要 |
The present invention is concerned with torsion damping devices of the kind comprising guide rings, a damper plate, a hub, and friction rings which form part of a first friction device and a second friction device, respectively. An abutment is provided for coupling together in a sub-assembly one of the friction rings and either the appropriate guide ring or the damper plate. In addition, axial retainers are provided between the two friction rings.
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