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, Martin Simonyi, Thomas Murauer, Hannes Wegleiter

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

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 paper 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.
Originalspracheenglisch
TitelProc. 18. European Space Mechanisms and Tribology Symposium 2019
Seitenumfang10
PublikationsstatusVeröffentlicht - 18 Sep 2019
Veranstaltung18th European Space Mechanisms and Tribology Symposium - Gasteig Conference Center, München, Deutschland
Dauer: 18 Sep 201920 Sep 2019
http://www.esmats.eu/munich/

Konferenz

Konferenz18th European Space Mechanisms and Tribology Symposium
KurztitelESMATS 2019
LandDeutschland
OrtMünchen
Zeitraum18/09/1920/09/19
Internetadresse

Schlagwörter

  • Wälzlager
  • Wärmeleitung

Dies zitieren

Design, Operation and Results of a Low-Cost Test Rig for Investigation of Thermal Properties of Rolling Element Bearings in Vacuum. / Buchroithner, Armin; Haidl, Peter; Simonyi, Martin; Murauer, Thomas; Wegleiter, Hannes.

Proc. 18. European Space Mechanisms and Tribology Symposium 2019. 2019.

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Buchroithner, A, Haidl, P, Simonyi, M, Murauer, T & Wegleiter, H 2019, Design, Operation and Results of a Low-Cost Test Rig for Investigation of Thermal Properties of Rolling Element Bearings in Vacuum. in Proc. 18. European Space Mechanisms and Tribology Symposium 2019. 18th European Space Mechanisms and Tribology Symposium, München, Deutschland, 18/09/19.
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AU - Wegleiter, Hannes

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AB - 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 paper 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.

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