Screw rotor pump (5), with a housing (6), in which a drive spindle (7) and at least one idler spindle (8) with interengaging profile packets are received, the free end of the drive spindle (7) and the end of the idler spindle (8) on a in the housing (6) arranged plate (12) are supported, whereby the plate (12) is provided with two oppositely inclined surfaces (13, 14) on which in each case one of the spindles (7, 8) is supported, wherein the inclination of the surfaces (13, 14) is selected in such a manner that they extend along a within the plate (12) cutting line which.
