The Study on Bearing Friction Torque under Gravity and Microgravity and the Mapping Relationship

Han, Xueyan; Li, Fujuan; Wang, Yongtao; Han, De-Quan; Sun, Jun; Li, Shihua

doi:10.1007/s12217-022-09990-z

Cited by 1 publication

(1 citation statement)

References 21 publications

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“…Under different lubricants, rotational speeds and radial pressures, the friction torque, vibration, temperature rise and surface damage of the bearings were tested. Han et al (2022) proposed a method for simulating the joint bearing friction torque under gravity and microgravity environment and developed a measurement device. Prozhega et al (2021) tested the friction coefficient of bearings with different kinds of lubricants under vacuum and atmospheric pressure to explore the effect of vacuum on the lubrication effect of bearing lubricants.…”

Section: Introductionmentioning

confidence: 99%

Test and analysis of friction torque of double-row angular contact ball bearing under vacuum environment

Ye,

Zhang,

Zuo

et al. 2024

ILT

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Purpose The purpose of this paper is to test and analyze the friction torque of double-row angular contact ball bearings under vacuum or ordinary pressure environment, horizontal or upright installation mode, and different rotational speeds, and to provide theoretical bases for the development of aerospace equipment. Design/methodology/approach The experiments were carried out to investigate the effects of vacuum or ordinary pressure environment, horizontal or upright installation mode and different rotational speeds on bearing friction torque. To explore the relationship between working conditions and bearing friction torque, firstly, based on the generation source of friction torque, the test principle was determined, a test system was developed and the reliability of data was verified. Secondly, the friction torque of bearing was tested, and the values under various working conditions were obtained. Finally, this paper compared and discussed the test results. Findings The test results show that the friction torque value of vacuum environment horizontal installation condition is the largest at different rotational speeds, and the rotational speed has the most significant influence on the friction torque. Originality/value The friction torque test system of double-row angular contact ball bearing under vacuum environment was designed and built. The influence rules of vacuum or ordinary pressure environment, horizontal or upright installation mode and different rotational speeds on bearing friction torque were obtained. Peer review The peer review history for this article is available at: http://dx.doi.org/10.1108/ILT-08-2023-0259

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Section: Introductionmentioning

confidence: 99%