| 摘要 |
A torsion damping device, in particular for inclusion in a clutch friction wheel of a motor vehicle clutch, includes springs which are in end thrust engagement on thrust inserts or spring seats which are mounted for pivoting movement in the friction wheel. The anterior part of each of these spring seats, on which the springs are in end thrust and/or centring engagement, is made at least partly of synthetic material, while the posterior part of the spring seat, by which the latter is pivotally mounted in the friction wheel, is made at least partly of metal.
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