TURBOPUMP

摘要

The invention relates to a turbovacuum pump for producing a high vacuum. Said turbovacuum pump comprises a rotor shaft (15) which rotates at high speed and is mounted between two rolling bearings (21,21a). The outer ring (34) of a rolling bearing is prestressed in the axial direction by means of a magnet arrangement consisting of two annular magnets (35,36) between which an air gap (37) is formed, preventing the transmission of noise-creating vibrations from the rotor to the housing (12).