Research on the friction, lubrication and temperature rise characteristics of silicon nitride full ceramic ball bearing at low temperature
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 2 May 2023
Issue publication date: 9 May 2023
Abstract
Purpose
To understand the service performance of full ceramic ball bearings under extreme working conditions and improve their service life, dynamic characteristic tests of full ceramic ball bearings under ultra-low temperature conditions were carried out by a low-temperature bearing life testing machine, and temperature rise and friction were measured under extreme low-temperature environment.
Design/methodology/approach
The heat-flow coupling model of bearing was established by CFD software, and the test results were further analyzed.
Findings
The results show that the temperature rise of the bearing is not obvious in the liquid nitrogen environment. With the increase of the chamber temperature, the lubrication state of the bearing changes, resulting in the temperature rise of the outer ring of the bearing. As the temperature of the test chamber increases, the friction force on the bearing increases first and then decreases under the action of multifactor coupling.
Research limitations/implications
The research results provide test data and theoretical basis for the application of all-ceramic ball bearings in aerospace and other fields and have important significance for improving the service life of high-end equipment under extreme working conditions.
Practical implications
The research results provide test data and theoretical basis for the application of full ceramic ball bearings in aerospace and other fields and have important significance for improving the service life of high-end equipment under extreme working conditions.
Social implications
The research results provide test data and theoretical basis for the application of full ceramic ball bearings in aerospace and other fields and have important significance for improving the service life of high-end equipment under extreme working conditions.
Originality/value
The research results provide test data and theoretical basis for the application of full ceramic ball bearings in aerospace and other fields and have important significance for improving the service life of high-end equipment under extreme working conditions.
Keywords
Acknowledgements
The authors acknowledge the collective support granted by the National Natural Science Foundation of China (Grant No 52105196), the Education Department of Liaoning Province (Grant No LJKMZ20220936), the Young and Middle-aged Innovation Team of Shenyang (Grant No RC210343). National defense science and technology innovation zone plan: ultra-high precision ceramic bearing (No. 20–163–00-TS-006–002–11).
Citation
Sun, J., Zhang, G., Xia, Z., Bao, Z., Yao, J., Fang, X., Zhang, Z. and Guan, R. (2023), "Research on the friction, lubrication and temperature rise characteristics of silicon nitride full ceramic ball bearing at low temperature", Industrial Lubrication and Tribology, Vol. 75 No. 4, pp. 432-447. https://doi.org/10.1108/ILT-01-2023-0013
Publisher
:Emerald Publishing Limited
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