Effect of raceway surface topography based on solid lubrication on temperature rise characteristics of HIPSN full ceramic ball bearings
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 27 August 2024
Issue publication date: 29 October 2024
Abstract
Purpose
This study aims to understand the influence of raceway surface topography on the temperature rise characteristics of silicon nitride (Si3N4) full ceramic ball bearing and improve its service life.
Design/methodology/approach
The arithmetic average height Sa, skewness Ssk and kurtosis Sku in the three-dimensional surface roughness parameters are used to quantitatively characterize the surface topography of the raceway after superfinishing. The bearing life testing machine is used to test the Si3N4 full ceramic ball bearing using polytetrafluoroethylene (PTFE) cage under dry friction conditions, and the self-lubricating full ceramic ball bearing heat generation model is established.
Findings
With the decrease of Sa and Ssk on the raceway surface and the increase of Sku, the average height of the raceway surface decreases, and the peaks and valleys tend to be symmetrically distributed on the average surface, and the surface texture becomes tighter. This kind of raceway surface topography is beneficial to form a thin and uniform filamentous PTFE transfer film with a wide coverage area on the raceway surface based on consuming less cage materials and improving the temperature rise characteristics of hot isostatic pressing silicon nitride full ceramic ball bearings.
Originality/value
The research results provide a theoretical basis for the reasonable selection of Si3N4 ring raceway processing technology and have important significance for improving the working characteristics and service life of Si3N4 full ceramic ball bearings under dry friction conditions.
Keywords
Acknowledgements
This work was supported by the Key projects of National Natural Science Foundation of China (Joint Fund), China [grant number U23A20631]; the Applied Basic Research Project of Liaoning Province [grant number 2022JH2/101300216]; and the Liaoning Province Key Laboratory of Aeronautical Materials Tribology Open Fund Project [grant number LKLAMT F202306].
Citation
Li, S., Huang, S., Wei, C., Sun, J., Wang, Y. and Wang, K. (2024), "Effect of raceway surface topography based on solid lubrication on temperature rise characteristics of HIPSN full ceramic ball bearings", Industrial Lubrication and Tribology, Vol. 76 No. 9, pp. 1036-1047. https://doi.org/10.1108/ILT-05-2024-0181
Publisher
:Emerald Publishing Limited
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