| 摘要 |
A damped double flywheel for a motor vehicle forms a modular unit with the associated clutch. The flywheel comprises a first rotating mass having a central hub and secured to the engine crankshaft by securing screws each having a head; a second rotating mass comprising a plate which is typically the clutch reaction plate and which carries an outer hub within it; a torsion damper; and a bearing which is interposed radially between the two hubs. The securing screws lie radially outside the bearing. The outer hub has openings through which the heads of the screws can be fitted, and a removable retaining ring is fitted at the level of these openings, to prevent loss of the screws before assembly to the crankshaft and to enable individual broken screws to be removed if necessary.
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