Method for In Situ Film Thickness Measurement of Ball Bearings under Combined Loading using Capacitance Measurements

Volker Schneider, Norbert Bader, Hai Chao Liu, Gerhard Poll

Research output: Contribution to journalArticleAcademicpeer-review

17 Citations (Scopus)

Abstract

In this study, a novel capacitance based analytical method to monitor the film thickness in a ball bearing under a combination of axial and radial load is presented. Furthermore, an extended method is presented to infer the difference between the lubricant film height on the inner ring and the outer ring of a rolling element. Numerical investigations provide the basis for describing the influence of the operating parameters on the lubricant film thickness distribution in the HERTZ’ian contact. The method for calculating the correction factor kc presented in a previous paper is extended so that it is valid for a wider operating range. This makes it possible to calculate the total capacitance of a contact from the capacitance of only the HERTZ’ian contact area.
Original languageEnglish
Article number107524
JournalTribology international
Volume171
Early online date10 Mar 2022
DOIs
Publication statusPublished - 1 Jul 2022
Externally publishedYes

Keywords

  • n/a OA procedure

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