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Friction

, Volume 7, Issue 6, pp 551–563 | Cite as

Modeling the frictional torque of a dry-lubricated tapered roller bearing considering the roller skewing

  • Chi Zhang
  • Le GuEmail author
  • Yuze Mao
  • Liqin Wang
Open Access
Research Article

Abstract

In this paper, an equation for the calculation of the frictional torque of a dry-lubricated tapered roller bearing (TRB) is provided in which the effect of the roller skewing is emphasized. Calculations were performed to investigate the effect of the roller skewing on the torque of dry-lubricated TRB for two representative preload methods, that is, axial force preload and axial displacement preload. The results show that a proper roller skewing angle under axial force preload benefits the reduction of the TRB torque. However, the roller skewing angle should not exceed a certain critical value; otherwise, it will cause a steep rise in the TRB torque. Finally, the critical value of the roller skewing angle as a function of the friction coefficient and cage pocket clearance is presented. The developed torque model provides a tool for the internal design and torque optimization of dry-lubricated TRBs.

Keywords

tapered roller bearing frictional torque roller skewing dry lubrication 

Notes

Acknowledgments

The authors are grateful for the support of the National Natural Science Foundation of China (Nos. 51675120 and U1637206).

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Copyright information

© The author(s) 2018

Open Access: The articles published in this journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (https://doi.org/creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  1. 1.Research Lab of Space & Aerospace TribologyHarbin Institute of TechnologyHarbinChina

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