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Development of Special Heat Treatment to Improve the Bearing Fatigue Life
Technical Paper
1999-01-0289
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A new technique of heat treatment is developed for the bearings of automotive transmission and chassis to maximize their service life under contaminated and severe environments. This study demonstrates an improvement of the microstructure of bearing steels by applying special heat treatments. The microstructure is developed by optimizing various heat treating parameters (temperature, cycle time and gas atmosphere, etc.) as well as by modifying the quenching processes (double quenching and press quenching). We obtained a desirable microstructure of dense and fine martensite with optimum levels of retained austenite and compressive residual stress on the subsurface. The size and distribution of carbides and grains are found to be very fine and homogeneous. The endurance test results show that the specimens with new treatment have an excellent fatigue life compared with the conventional bearing samples.
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Park, H., Jung, S., and Lim, T., "Development of Special Heat Treatment to Improve the Bearing Fatigue Life," SAE Technical Paper 1999-01-0289, 1999, https://doi.org/10.4271/1999-01-0289.Also In
References
- Murakami Y. Matumoto Y. Furumura K. “Long life super TF and Hi-TF bearings under sever lubrication conditions” NSK Technical Journal 652 9 1992
- Murakami Y. Matumoto Y. Furumura K. “Long life TF bearings under debris contaminated lubrication” NSK Technical Journal 650 1 1989
- Harris T.A. “Rolling bearing analysis” John Wiley & Sons 1984
- Gahr K-H. Z. “Microstructure and wear of materials” Elsevier 1987
- Sayles R.S. Loannides E. “Debris damage in rolling bearings and its effect on fatigue life” Trans. of the ASME 110 26 1988
- Cullity B. “Elements of X-ray diffraction” Addison-Wesley publ. Co. 453 1978
- Beerbower M. Abe K. “Fighting debris: Increasing life with HTF bearings for transmissions” SAE paper # 940728 11 1994
- Krauss G. “Steels heat treatment and processing principles” ASM International 14 92 1995