A turbomolecular pump including a housing having a suction opening and a
gas outlet opening, and a plurality of alternatingly arranged one behind
another, stator and stator rings provided, respectively with support rings
for supporting each a blade, with a support ring of a stator disc located
adjacent to a high pressure region of the turbomolecular pump being
connected with an adjacent housing part over a large surface or being
formed with the adjacent housing part as one-piece part.
