Film Stiffness Analysis for Angular Contact Ball Bearings Considering Thermal Effect
Chun L. Lei*, Zhi Y. Rui, Qin Wu, Jun F. Guo, Li N. Ren
Identifiers and Pagination:Year: 2015
First Page: 156
Last Page: 159
Publisher Id: TOMEJ-9-156
Article History:Received Date: 8/1/2015
Revision Received Date: 15/1/2015
Acceptance Date: 16/1/2015
Electronic publication date: 27/2/2015
Collection year: 2015
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
In order to more accurately calculate the film stiffness of angular contact ball bearing, it is necessary to establish the film stiffness calculation model that is consistent with reality. The frictional heat exists in high-speed ball bearings, and can impact on oil film thickness and stiffness. The calculation model of film stiffness of an angular contact ball bearing taking account of the effects of viscous heating was proposed based on the elastohydrodynamic lubrication theory. The central film thickness and film stiffness have been determined. An example was calculated with this derived equation and the result was compared with that given in other literatures. The calculation results show that the central film thickness decreases and the film stiffness increases when friction heating are considered.