Effect of roller dynamic unbalance on cage stress of high-speed cylindrical roller bearing
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 5 October 2018
Issue publication date: 19 November 2018
Abstract
Purpose
The purpose of this study is to investigate the effect of roller dynamic unbalance on cage stress.
Design/methodology/approach
Considering the impact of roller dynamic unbalance, the dynamic analysis model of high-speed cylindrical roller bearing is established. And then the results of dynamic model are used as the boundary conditions for the finite element analysis model of roller and cage to obtain the cage stress.
Findings
Roller dynamic unbalance affects the contact status between roller and cage pocket and causes the overall increase in cage stress. The most significant impact on cage stress is roller dynamic unbalance in angular direction of roller axis, followed by radial and axial directions. Smaller radial clearance of bearing and a reasonable range of pocket clearance are beneficial to reduce the impact of roller dynamic unbalance on cage stress; the larger cage guide clearance is a disadvantage to decrease cage stress. The impact of roller dynamic unbalance on cage stress under high-speed condition is greater than that in low-speed conditions.
Originality/value
The research can provide some theoretical guidance for the design and manufacture of bearing in high-speed cylindrical roller bearing.
Keywords
Acknowledgements
This research is financially supported by National Natural Science Foundation of China (U1404514).
Citation
Cui, Y., Deng, S., Ni, Y. and Chen, G. (2018), "Effect of roller dynamic unbalance on cage stress of high-speed cylindrical roller bearing", Industrial Lubrication and Tribology, Vol. 70 No. 9, pp. 1580-1589. https://doi.org/10.1108/ILT-01-2018-0042
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited