Medium-Heat-Resistant Bearing Steel

Paper #:
  • 961831

Published:
  • 1996-08-01
Citation:
Ohta, A., Johns, T., Amano, K., and Yasumoto, S., "Medium-Heat-Resistant Bearing Steel," SAE Technical Paper 961831, 1996, https://doi.org/10.4271/961831.
Pages:
9
Abstract:
Operating temperatures in many bearing applications exceed 100 °C. Conventional bearing steel (SAE52100,SAE5120,Etc.) will begin to experience a reduction in life due to dimensional instability, and reduced surface hardness, at these temperatures.High speed tool steel (such as AISI-M50) can operate in temperatures up to 300°C but is very costly. SAE52100 can be heat stabilized up to 300°C to improve the dimensional stability, but this process can severely decrease the surface hardness and fatigue life.There are many applications where the high operating temperature is greater than 100°C but less than 200°C. A new material has been developed, based on SAE52100, with improved dimensional stability, and surface hardness, for this medium operating temperature range.
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