Resources Contact Us Home
Method and system for withstanding shock in a spindle motor bearing

Image Number 8 for United States Patent #7407327.

A system, method and means is provided for withstanding mechanical shock for use with fluid dynamic bearings. A sealing system is provided that withstands 1000 G shock events. In an aspect, a grooved pumping seal employed between a thrust plate and a shield, a thrust plate having spiral grooves, a fluid recirculation passageway, and a reservoir creates an asymmetric pressure gradient. In an aspect, fluid is retained and air is purged utilizing an enlarged fluid reservoir, axial channels and an angled fill hole. In an aspect, a shaft is attached to a top cover supplying radial stiffness, and an enlarged single-sided thrust plate improves dynamic parallelism.

  Recently Added Patents
Curable inks comprising surfactant-coated magnetic nanoparticles
LED lamp including heat dissipator
Liquid formulations of carboxamide arthropodicides
Selecting modulation and coding scheme in the presence of interference
Electronic device and printed circuit board
Tread portion of an automobile tire
Flexible circuit routing
  Randomly Featured Patents
Direct process for preparing dimethylsiloxanes
Vertical display mounting device
Method and apparatus for laminating a flexible printed circuit board
Corrosion resistant pipe joint
On-line measurement and control of polymer product properties by Raman spectroscopy
Shuttle valve
Monoclonal antibodies reactive with defined regions of the T cell antigen receptor
Surface light source device
Skin therapeutic mixture containing eupatorium extract