Patent ID: 7954998

Claim:
A hydrodynamic bearing set suitable for use in a housing having a first planar surface and a second opposed planar surface, the planar housing surfaces enclosing a thrust disk movable along and rotatable about an axis, the thrust disk having first and second axial bearing surfaces, said hydrodynamic bearing set comprising a first topfoil disposed adjacent the first axial bearing surface and removably secured to the housing, said first topfoil including a first topfoil spring operatively contacting the second planar housing surface such that said first topfoil is urged away from the thrust disk; a first underspring removably secured between said first topfoil and the first planar housing surface; a second topfoil disposed adjacent the second axial bearing surface and removably secured to the housing; and a second underspring removably secured between said second topfoil and the second planar housing surface.