Patent ID: 8635764
Filing Date: 2014-01-28
Classification: F16C,G11B,H02K,Y10T

Abstract:
1. A method comprising: mounting a hub on a spindle for rotation therewith, wherein a first end and a second end of the spindle define an axis of rotation of the spindle; mounting at least one disk on the spindle for rotation therewith; positioning a first bearing including a first bearing surface that interacts with a surface of the spindle through a fluid medium; positioning a second bearing including multiple bearing surfaces, the second bearing operable to provide stiffness against radial and tilt loads applied to the spindle, wherein at least one of the multiple bearing surfaces has a groove operable to distribute a fluid between the multiple bearing surfaces; and mounting a closure plate proximate the first end of the spindle, wherein the closure plate interacts with the second bearing first surface on the second bearing to provide axial stiffness and to counteract radial and tilt loads applied to the spindle.