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Rolling Contact Fatigue of Hot-Pressed Silicon Nitride Versus Surface Preparation Techniques

  • H. R. Baumgartner
  • W. M. Wheildon
Part of the Materials Science Research book series (MSR, volume 7)

Abstract

Hot-pressed silicon nitride is receiving interest as a potential antifriction bearing material1. As a result of advanced material preparation and processing techniques, bend strengths in excess of 100,000 psi are routinely achieved. In addition to its high strength, dimensional stability and corrosion resistance, silicon nitride has a density of 3.2 g/cm3, sixty percent lower than that of steel. This light weight is especially important for high speed bearings, where the maximum stresses occur in the outer race, primarily as a result of the centrifugal force loading from the rolling elements. Inasmuch as strength tends to be sensitive to surface integrity, finishing procedures are an important aspect for bearing applications. This paper will report experiments on their effect.

Keywords

Fatigue Life Silicon Nitride Rolling Contact Contact Fatigue Stress Cycle 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Plenum Press, New York 1974

Authors and Affiliations

  • H. R. Baumgartner
    • 1
  • W. M. Wheildon
    • 1
  1. 1.Norton CompanyWorcesterUSA

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