Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Variety corn line NPAA2720
Lubricant supplying device, process cartridge, and image forming apparatus
Incentive based recommendation method for mobile station content
Inspection tool for top guides of a boiling water reactor
Semiconductor device element formed on SOI substrate comprising a hollow region, and having capacitors in an electric field alleviation region
Round carrying case
Charged particle source with integrated electrostatic energy filter
  Randomly Featured Patents
Reciprocating piston with variable compression height for internal combustion engines
Power system for supplying stable power
Semiconductor laser end-facet coatings for use in solid or liquid environments
Method and apparatus for controlling access technology selection
Bill validator status detector
Miter saw
Lamp control circuit having a brightness condition controller having 2.sup. n .sup.rd and 4.sup.th current paths
Fluorescent temperature sensor
Error compensation system
Disposable surgical ultrasonic transducer