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
High-voltage AC light-emitting diode structure
Wireless communication system
Implantable medical devices including elongated conductor bodies that facilitate device and lead configuration variants
FET device having ultra-low on-resistance and low gate charge
Polypeptide microparticles
Data processing circuit with arbitration between a plurality of queues
Radiation-emitting semiconductor chip and method for producing a radiation-emitting semiconductor chip
  Randomly Featured Patents
Compensator for liquid crystal display
Method of fabricating semiconductor device
Methods, compositions, and biomimetic catalysts for the synthesis of silica, polysilsequioxanes, polysiloxanes, non-silicon metalloid-oxygen networks, polymetallo-oxanes, and their organic or
Method and apparatus for recording, storing and reproducing information
Laser with heat transfer system
Airbag device and motorcycle with the airbag device
Method for preparing green sheets
Method and apparatus for configuring and managing customer premises equipments
Vehicle seat