Effect of compound pit textures on the friction and wear of thrust cylindrical roller bearings under starved lubrication
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 14 March 2023
Issue publication date: 4 April 2023
Abstract
Purpose
This study aims to investigate the effect of compound pit textures on the tribological properties of thrust cylindrical roller bearings (TCRBs) using several parameters, such as compound type, pit diameter, pit depth and pit area density.
Design/methodology/approach
The surface texture parameters of the shaft washer (WS) raceway include pit diameter (D; 100, 300 and 500 µm), pit depth (H; 10 and 20 µm) and pit area density (S; 10%, 13% and 18%). Pits were produced on the WS of the TCRBs using laser marking equipment. The friction and wear performances of compound pit-textured TCRBs under starved lubrication conditions are studied using a friction and wear test rig. The influence mechanisms of the compound pit texture on the friction and wear properties of TCRBs are discussed through real tests and discussions.
Findings
Compared with nontextured bearings, the average coefficient of friction (ACOFs) and wear loss of TCRBs with single/compound pit textures are reduced when rotating under starved lubrication. D has the greatest effect on the COFs curve. When D = 300 µm, H = 10 µm and S = 10%, the ACOF and wear loss are the lowest, that is, 0.0207 and 3.38 mg, respectively. Under the same lubrication conditions, compared with the nontextured bearing group, the COF and wear loss are reduced by 41.4 and 59.6%, respectively.
Originality/value
This study provides a useful reference for the raceways of textured TCRBs.
Keywords
Acknowledgements
The research was funded by the National Key R and D Program of China (No. 2019YFB2004400) and the Chinese National Natural Science Foundation (No. U1708254).
Citation
Wang, Y., Zhang, Y. and Long, R. (2023), "Effect of compound pit textures on the friction and wear of thrust cylindrical roller bearings under starved lubrication", Industrial Lubrication and Tribology, Vol. 75 No. 3, pp. 343-351. https://doi.org/10.1108/ILT-10-2022-0307
Publisher
:Emerald Publishing Limited
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