Dual Mass Flywheel

Fig 1: Identifying Dual Mass Flywheel

Courtesy of VOLVO CARS OF NORTH AMERICA.

The dual mass flywheel reduces noise from the transmission and improves driveability.

The dual mass flywheel helps reduce the load on the crankshaft bearings. It also improves shift quality because the flywheel mass on the clutch driven plate is lower.

The components of the dual mass flywheel can rotate in relation to one another. This twisting depends on the load from the engine. Twisting of a dual mass flywheel is up to 60 degrees in both directions. You can feel a certain twisting between the components if you turn a dual mass flywheel.