VS - Transmission Systems Dual-Mass Flywheel DMF valeoscope

5.1 Primary Inertia (mass)

The primary flywheel is bolted directly to the crankshaft and contains the damping springs. The secondary flywheel is fitted with a conventional clutch cover and solid disc with a lower inertia, improving the gear shifting. There are two long curved springs between the flywheels that absorb the engine vibrations. The main advantage is a greater angular damping which allows the maximum filtration. A cover plate is welded to the primary flywheel to form a chamber filled with low-friction grease to help the springs move freely. The secondary flywheel is made of special cast iron that can resist the high thermal loads of the clutch.

Primary Flywheel The primary flywheel is bolted to the engine crankshaft. It is a steel stamped component with a sufficient mass moment of inertia. In certain cases, it could be made of cast iron. The ring gear is press fitted on the flywheel to interface with the engine starter.



Clutch kit

Primary flywheel

Secondary flywheel



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