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Tapered Roller Bearing Performance for 1990's
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Abstract
Significant advances in bearing material quality, resulting in measurably cleaner steels, have provided increased ratings and extended performance in The Timken Company standard product tapered roller bearings. Using a sizable database of test results collected over the past years, along with appropriate analysis methods, it has been possible to identify those advances needed to provide additional improved bearing performance.
New advances in bearing design and manufacturing technology, as exemplified by enhanced internal bearing geometry and advanced finish processing, indicate improved bearing performance can be achieved in smaller bearing designs or increased reliability or extended life within existing bearing sizes. Such advances culminated in the new Performance 900™ bearings announced by The Timken Company in February 1988. Automotive and industrial designers have the opportunity to improve bearing application performance while accomplishing other objectives of lower weight and lower cost.
The P900 bearing are a portent for the extended bearing life and improved performance to be expected for the 1990s. An important concept abetted by these enhanced capabilities is the significant downsizing of total operating units as significantly cleaner steels and related technologies can be applied to complete systems.
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Authors
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Citation
Moyer, C., Nixon, H., and Bhatia, R., "Tapered Roller Bearing Performance for 1990's," SAE Technical Paper 881232, 1988, https://doi.org/10.4271/881232.Also In
References
- Dominik, W. E. “Rating and Life Formulas For Tapered Roller Bearings” SAE Technical Paper Series 841121 1984
- -, Bearing Selection Handbook Revised - 1986 The Timken Company Canton, Ohio, U.S.A. 1986
- Widner, R. L. Littmann, W. E. “Bearing Damage Analysis” Nat. Bureau of Standards. Special Pub. n 423. Mechanical Failure - Definition of the Problem Proceedings Mech. Failures Prev. Group Gaithersburg, MD May 8-10 1974 67 84 1976
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- Clarke, T. M. Miller, G. R. Keer, L. M. Cheng, H. S. “The Role of Near-Surface Inclusions in the Pitting of Gears” ASLE Trans. 28 1 111 116 1985
- Moyer, C. A. “The Influence of Debris on Rolling Bearing Performance: Identifying the Relevant Factors,” SAE Tech. Paper Series 871687 IOHP Congress 4 Exposition Milwaukee, Wis. Sept. 14-17 1987
- Cave, B. J. Mitchell, C. J. “Bearing Systems Analysis” The Institution of Engineers 303 307 1980
- Performance 900™ Bearings The Timken Company Feb. 1988
- Stover, J. D. Kolarik, R. V. “Air-Melted Steel With Ultra-Low Inclusion Stringer Content Further improves Bearing Fatigue Life” presented at the International Pacific Conference on Automotive Engineering SAE Melbourne. Australia Nov. 1987
- Hoeprich, M. R. “Numerical Procedure for Designing Rolling Element Contact Geometry as a Function of Load Cycle” SAE Technical Paper Series 850764 1985
- Wymer, D. F. Cameron, A. “Elastohydrodynamic Lubrication of a Line Contact” Proceedings I. Mech. Eng. 188 19 1974
- Strong, S. R. Fahrni, G. R. “Selecting Bearings Without A Catalog” SAE Technical Paper Series 851510 1985 International Off-highway & Power Plant Congress and Exposition Milwaukee, WI Sept. 1985