Hollow transmission shaft

In double-clutch transmissions, one of the two input shafts must be designed hollow due to its function. Conventional production as a drilled solid part would significantly impair material efficiency. This part is produced hollow along its entire length purely by means of forging – the hollow space corresponds to a steel mass of 1.9 kg. This weight saving justifies the additional production steps.


Technical specifications

Application Area Double-clutch transmission
Material 18CrNiMo7-6, 20MnCrS5
Porduction process Cold forged
Characteristics Hollow along the entire length – produced exclusively by means of forging