Progress in bearing performance of advanced nitrogen alloyed stainless steel, Cronidur 30
Conference
·
OSTI ID:316184
- FAG, OEM and Handel GmbH, Schweinfurt (Germany)
- FAG Aircraft and Super Precision Bearings GmbH, Schweinfurt (Germany)
- Pratt and Whitney, West Palm Beach, FL (United States). Government Engine and Space Propulsion Div.
The bearing rig tests performed in this study demonstrate superior bearing performance of Cronidur 30 steel over conventional bearing steels. In these tests the L{sub 10} life of Cronidur 30 steel as calculated by the DIN/ISO 281 method was 80 times the unfactored L{sub 10} life under full lubrication conditions. In boundary lubrication conditions, the Cronidur 30 steel demonstrated the L{sub 10} life capability typical of EHD lubrication conditions, whereas the other steels showed drastically reduced lives. In tests with predamaged races and boundary lubrication conditions, Cronidur 30 demonstrated 8 times the calculated L{sub 10} life, whereas the conventional steels exhibited further reduction in lives. The improved performance of Cronidur 30 steel over conventional bearing steels is attributed to its unique compositional formulation and microstructure that results in provision of balanced properties in the alloy--hardness, toughness, and corrosion resistance.
- OSTI ID:
- 316184
- Report Number(s):
- CONF-9611259--; ISBN 0-8031-2421-X
- Country of Publication:
- United States
- Language:
- English
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