Patent ID: 7828512

Claim:
An arrangement for supporting a shaft of a vacuum pump having a housing, the arrangement comprising a first bearing for supporting the shaft at one end thereof and generating forces in a direction of a shaft axis and having an axial stiffness, a second bearing for supporting the shaft at another end thereof and formed as a rolling bearing, and a holder for receiving the second bearing and having an axial stiffness and a radial stiffness, the holder including a oscillating base, a fixation member secured in the vacuum pump housing, metallic connection members for connecting the oscillating base with the fixation member and enabling axial and radial displacements of the oscillating base, and axial springs arranged between the oscillating base and the fixation member and providing for the axial stiffness of the holder greater than the radial stiffness thereof and greater than the axial stiffness of the first bearing.