Modeling the frictional torque of a dry-lubricated tapered roller bearing considering the roller skewing
- 153 Downloads
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.
Keywordstapered roller bearing frictional torque roller skewing dry lubrication
The authors are grateful for the support of the National Natural Science Foundation of China (Nos. 51675120 and U1637206).
- Witte D C. Operating torque of tapered roller bearings. Tribol Trans16(1): 61–67 (1973)Google Scholar
- Palmgren A. Ball and Roller Bearing Engineering. 3rd ed. Philadelphia (USA): SKF Industries Inc., 1959.Google Scholar
- Harris T A. Rolling Bearing Analysis. New York (USA): John Wiley & Sons, 2001: 275.Google Scholar
- Karna C L. Performance characteristics at the rib roller end contact in tapered roller bearings. Tribol Trans17(1): 14–21 (1974)Google Scholar
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.