Switching device for a transmission

Switching device (1) for a gear change-speed gearbox of a vehicle having - a rotatable switching shaft (2) and - a on the shifting shaft (2) arranged damper unit (8) for equalizing by force peaks, wherein the damper unit (8) - an additional mass (5) and - a planetary gear (7) with a sun gear (10), a ring gear (12) and a planet gear (11) as wheels, wherein the planet gear (7) the additional mass (5) geared to the shifting shaft (2) connects, characterized in that one of the wheels (10, 11, 12) as a flywheel (45) is formed, comprising the additional mass (5), said flywheel (45) is formed as a plastic-metal composite part and cooperates with a braking means.