Patent ID: 6702468
Filing Date: 2004-03-09
Classification: F04D,F16C,Y10S

Abstract:
A sliding bearing for a magnetically driven centrifugal pump, comprising:an outer stationary tubular bearing housing (1); antirotationally mounted bearing bushings (2) arranged therein; a rotationally mounted hollow bearing shaft (3) arranged coaxially for rotating inside the outer stationary tubular bearing housing (1) to accommodate a pump impeller shaft of the magnetically driven centrifugal pump; bearing sleeves (4) concentrically arranged between the rotationally mounted hollow bearing shaft (3) and the antirotationally mounted bearing bushings (2); axial bearing rings (5) abutting end faces of the antirotationally mounted bearing bushings (2); shaft locking nuts (11) for fixedly engaging the rotationally mounted hollow bearing shaft (3), for abutting against the bearing sleeve (4) and for holding the same in an axial relation thereto; outer axial discs (6) abutting end faces of the axial bearing rings (5) for fastening on or alongside the rotationally mounted hollow bearing shaft (3) and for holding the rotationally mounted hollow bearing shaft (3) with the bearing sleeves (4) as well as the axial bearing rings (5) within the outer stationary tubular bearing housing (1); and the sliding bearing forming a pre-assembled unit for captively fixing or mounting together the outer stationary tubular bearing housing (1), the antirotationally mounted bearing bushings (2), the bearing shaft (3), the bearing sleeves (4), the axial bearing rings (5), outer axial discs (6) and shaft locking nuts (11) with the pump impeller shaft for coupling to the magnetically driven centrifugal pump.