Debris resistant thrust bearing assembly for high speed hydraulic centrifugal turbines and pumps

A rotating assembly for contacting a fixed assembly, the rotating assembly configured to rotate around a central axis, the rotating assembly comprising:

• a shroud comprising a recess, the recess comprising a cavity proximate to an outer face of the recess, wherein the cavity is configured to extend away from the fixed assembly, and an interior surface of the recess between the cavity and the central axis is substantially planar and perpendicular to the central axis;
• and
• a disk seated in the recess and contacting an outer face of the recess, the outer face being substantially parallel to the central axis and configured to compress the disk when the shroud is at a temperature less than 250 degrees Celsius.

A method of manufacturing a rotating assembly configured for use in turbines and pumps, the method comprising:

• arranging a disk in a recess of a shroud, wherein the recess in the shroud comprises a cavity proximate to an outer face of the recess, and an interior surface of the recess between the cavity and the central axis is substantially planar and perpendicular to the central axis;
• and
• securing the disk in the shroud with a radial force between the shroud and the disk caused by thermal compression of the disk by the shroud.