Resources Contact Us Home
High performance bearing pad for thrust bearing

Image Number 2 for United States Patent #5253939.

Cylindrical bearing pads are insertable into bearing pad recesses formed in a receiving surface of a bearing pad retainer in a load-carrying structure. The bearing pads have an insertion end which is fixed into the bearing pad recess by brazing or by interference fitting and a bearing end which projects from the receiving surface and terminates in a bearing face. The bearing face has a periphery which encircles the bearing face and an indentation having a perimeter formed centrally in the bearing face. An annular flattened area encircles the indentation forming an effective bearing contact area between an outer border of the flattened area and the perimeter of the indentation. When the indentation is filled with drilling fluid, lubrication is provided to an opposed bearing face of an opposing bearing pad. The indentation can be filled with drilling fluid or some other material with a higher heat storage capacity than polycrystalline diamond to provide temperature modulation for storing heat produced at the bearing face. When filled with a material, the indentation also serves to dissipate heat to reducing the length of a path of heat when the heat is conducted to cooler areas of the bearing face. Alternate embodiments include bearing faces with single or plural indentations of various shapes.

  Recently Added Patents
Method, system, and computer program product for scoring theoretical peptides
Encryption using alternate authentication key
Dynamic rebasing of persisted time information
Delta-sigma AD converter circuit and battery pack
Method and system for selecting a target with respect to a behavior in a population of communicating entities
  Randomly Featured Patents
Remote controlled toy car
Facial recognition for a videoconference
Image forming apparatus
Intrathecal catheter having a stylet with a curved tip
Microgyroscope having inner and outer mass parts
Gamma-ray imaging with sub-pixel resolution
Electron mediator, electron mediator immobilized electrode, and biofuel cell using the electrode
Indentation hardness test system
Zoom lens copier
Hydroxyalkylated high performance curable polymers