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
Compositions and methods for producing isoprene
Organic light emitting diode device and fabrication method thereof
Method of reducing acetaldehyde in polyesters, and polyesters therefrom
System and method for detecting crop rows in an agricultural field
Dynamic web page construction based on determination of client device location
Vehicle tail lamp
Flip-chip mounting resin composition and bump forming resin composition
  Randomly Featured Patents
Sewing machine
Variable-length needle covering device of an injection device
Tool clamping/unclamping device
In-vehicle mount radar device
Method and apparatus for assigning spreading codes
Method and apparatus for communicating selected additional data in a data stream of fixed size
Broach for incorporation in a drill string
Tumor antigens and uses thereof
Cathode-ray tube
Slimming effect for digital photographs