Design, Operation and Results of a Low-Cost Test Rig for Investigation of Thermal Properties of Rolling Element Bearings in Vacuum

Armin Buchroithner, Peter Haidl, Hannes Wegleiter, Martin Simonyi, Thomas Murauer

Research output: Contribution to conferencePoster

Abstract

Data on thermal properties of ball bearings and roller bearings is scarce, yet of great importance to many rotating machines operating in a vacuum environment. This poster presents simple, but reliable methods to determine bearing properties required for accurate thermal system modeling, beginning from theoretical calculations to empiric testing. A through state-of-the-art analysis gives an overview of the existing analytical methods to determine thermal conductivity, points out their shortcomings and stresses the necessity of empirical methods. Consequently, the design of a low-cost test rig to determine thermal properties of rolling element bearings in a vacuum is described in detail. The test rig allows the variation of different ambient parameters and operating conditions. Finally results comparing different axial loads and running speeds are presented.
Original languageEnglish
Publication statusPublished - 18 Sep 2019
Event18th European Space Mechanisms and Tribology Symposium - Gasteig Conference Center, München, Germany
Duration: 18 Sep 201920 Sep 2019
http://www.esmats.eu/munich/

Conference

Conference18th European Space Mechanisms and Tribology Symposium
Abbreviated titleESMATS 2019
CountryGermany
CityMünchen
Period18/09/1920/09/19
Internet address

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