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Influence of Groove Dimensions on the Tribological Behavior of Textured Cylindrical Roller Thrust Bearings under Starved Lubrication

Risheng Long (Equipment Reliability Institute, Shenyang University of Chemical Technology Shenyang, Liaoning, China)
Chao Zhao (Equipment Reliability Institute, Shenyang University of Chemical Technology Shenyang, Liaoning, China)
Zhihao Jin (Equipment Reliability Institute, Shenyang University of Chemical Technology Shenyang, Liaoning, China)
Yimin Zhang (Equipment Reliability Institute, Shenyang University of Chemical Technology Shenyang, Liaoning, China)
Zhen Pan (Equipment Reliability Institute, Shenyang University of Chemical Technology Shenyang, Liaoning, China)
Shaoni Sun (Northeastern University School of Mechanical Engineering and Automation Shenyang, China, China)
Weihua Gao (School of Foreign Languages, Shenyang University of Chemical Technology Shenyang, Liaoning, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 14 August 2021

Issue publication date: 9 September 2021

192

Abstract

Purpose

The purpose of this paper is to reveal the friction and wear performance of grooves textured cylindrical roller thrust bearings with different groove dimensions under starved lubrication.

Design/methodology/approach

The groove dimensions include: width of grooves (WOG, 50 µm, 100 µm and 150 µm), depth of grooves (DPOG, 7 µm, 11 µm and 15 µm) as well as groove deflection angle (GDA, 45°). A fiber laser marking system was used to prepare groove patterns on the raceways of shaft washers. The friction and wear properties of grooves textured bearings were researched through a vertical universal wear test rig using a customized roller bearing tribo-pair under starved lubrication. Static finite element analyses were conducted to reveal their surface stresses. Through the comprehensive comparison and analyses, the influence mechanism of grooves on the tribological behavior of cylindrical roller thrust bearings was proposed and discussed.

Findings

When grooves textured bearings run under starved lubrication, their average coefficients of friction (COFs) and wear losses are all significantly reduced and much lower than those of smooth group. The influence of DPOG on the COF curves is significant, while the influence of WOG on the COF curves is a little weak. The influence of groove dimensions on the surface stresses of grooves textured bearings is weak, whether the WOG or DPOG. In this work, when the WOG is 100 µm and the DPOG is 15 µm, its average COF and wear loss are both the lowest, 0.0066 and 0.61 mg, respectively. Compared with the data of smooth group, its friction coefficient is reduced by 75.3% and its mass loss is reduced by 95.8%, showing a significant improvement in this condition.

Originality/value

This work can provide a valuable reference for the raceway design and reliability optimization of rolling element bearings.

Keywords

Acknowledgements

The research was supported by the National Natural Science Foundation of China (No. U1708254), the National Key R and D Program of China (No. 2019YFB2004400), the National Natural Science Foundation of China Young Scientist Fund (No. 51901141), the Natural Science Foundation of Liaoning province (No. 2019-MS-258) and the Scientific Research Fund of Liaoning Provincial Education Department (No. LJ2019003).

Citation

Long, R., Zhao, C., Jin, Z., Zhang, Y., Pan, Z., Sun, S. and Gao, W. (2021), "Influence of Groove Dimensions on the Tribological Behavior of Textured Cylindrical Roller Thrust Bearings under Starved Lubrication", Industrial Lubrication and Tribology, Vol. 73 No. 6, pp. 971-979. https://doi.org/10.1108/ILT-04-2021-0107

Publisher

:

Emerald Publishing Limited

Copyright © 2021, Emerald Publishing Limited

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