Progress in bearing performance of advanced nitrogen alloyed stainless steel, Cronidur 30
- 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; TRN: IM9908%%264
- Resource Relation:
- Conference: Symposium on bearing steels: into the 21st century, New Orleans, LA (United States), 19-21 Nov 1996; Other Information: PBD: 1998; Related Information: Is Part Of Bearing steels: Into the 21. century; Hoo, J.J.C. [ed.] [General Bearing Corp., West Nyack, NY (United States)]; Green, W.B. Jr. [ed.] [Torrington Co., Torrington, CT (United States)]; PB: 534 p.; ASTM special technical publication, Volume 1327
- Country of Publication:
- United States
- Language:
- English
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