A turbomolecular pump comprises a rotor element (12) disposed in a pump housing (18). The rotor element (12) is surrounded by a stator element (24). An intermediate chamber (36) is provided between the stator element (24) and the pump housing (18). An energy absorption element (44) is disposed in the intermediate chamber (36) for the purposes of absorbing energy in case of a bursting of the rotor element (12).
