| 摘要 |
A double flywheel vibration damper including two coaxial masses free to rotate relative to each other and acting against elastic parts, in which one of the masses, referred to as the first mass, is intended to be fastened to a drive shaft, whereas the other mass, referred to as the second mass, includes a reaction plate assuring rotational connection to a driven shaft, and in which the first mass has a central hub projecting axially and carrying bearing member operating between the second mass and the central hub to enable the second mass to rotate on the first mass, wherein the central hub comprises two aligned coaxial parts, namely a first hub supporting the second mass rotationally via the bearing member fitted on this first hub, and a second hub intended to be fastened to the drive shaft, and wherein the second hub constitutes an axial spacer between the drive shaft and the first hub. The invention is applicable to motor vehicle transmission systems.
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