Patent ID: 6065877
Filing Date: 2000-05-23
Classification: F16C,G11B,Y10S

Abstract:
A fluid bearing comprising an inner bearing element defining a first bearing surface for a gap of said fluid bearing;a second outer element defining a second surface facing said first surface of said fluid bearing gap;said second bearing element being formed of a material having a first coefficient of thermal expansion;and an insert in said second bearing element formed of a material having a second coefficient of thermal expansion different from the coefficient of thermal expansion of said second bearing element;a layer of viscous fluid in contact with and separating said first surface from said second surface such that said first and second surfaces are capable of relative rotation; andwherein said expansion element having a second coefficient of expansion greater than the first coefficient of expansion of said bearing seat is such that as temperature increases said second surface bows out toward said first surface such that a thickness of said layer of viscous fluid decreases as temperature increases.