Development of a Cryogenic Tester with Air Bearing to Test Sliding-Rolling Contact Friction

This study aimed to test the friction coefficient of cryogenic bearing lubrication materials. A ball-on-disc type friction tester was developed in our lab using air bearings that could simulate the movement of cryogenic bearings under sliding-rolling contact. The tester is equipped with a temperatur...

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Main Authors: Fengbo Liu, Bing Su, Guangtao Zhang, Jiongli Ren, Wenhu Zhang
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Lubricants
Subjects:
Online Access:https://www.mdpi.com/2075-4442/10/6/119
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author Fengbo Liu
Bing Su
Guangtao Zhang
Jiongli Ren
Wenhu Zhang
author_facet Fengbo Liu
Bing Su
Guangtao Zhang
Jiongli Ren
Wenhu Zhang
author_sort Fengbo Liu
collection DOAJ
description This study aimed to test the friction coefficient of cryogenic bearing lubrication materials. A ball-on-disc type friction tester was developed in our lab using air bearings that could simulate the movement of cryogenic bearings under sliding-rolling contact. The tester is equipped with a temperature-controlled chamber to provide a minimum −175 °C low-temperature environment. Using air bearings is an important technique to reduce the base friction of the tester measurement system and ensure the accuracy of the friction coefficient measurement. The friction coefficients of the Ag coating and the PTFE coating were measured at different sliding-rolling velocities on this tester, and the results showed that the friction coefficient curves agreed well with the Gupta sliding model. The developed tester will provide important data for the dynamic analysis and life evaluation of the cryogenic bearings.
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spelling doaj.art-839128690f7549d89ae810f49362f75b2023-11-23T17:38:26ZengMDPI AGLubricants2075-44422022-06-0110611910.3390/lubricants10060119Development of a Cryogenic Tester with Air Bearing to Test Sliding-Rolling Contact FrictionFengbo Liu0Bing Su1Guangtao Zhang2Jiongli Ren3Wenhu Zhang4School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaSchool of Mechatronics Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaSchool of Mechatronics Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaSchool of Mechatronics Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaSchool of Mechatronics Engineering, Henan University of Science and Technology, Luoyang 471003, ChinaThis study aimed to test the friction coefficient of cryogenic bearing lubrication materials. A ball-on-disc type friction tester was developed in our lab using air bearings that could simulate the movement of cryogenic bearings under sliding-rolling contact. The tester is equipped with a temperature-controlled chamber to provide a minimum −175 °C low-temperature environment. Using air bearings is an important technique to reduce the base friction of the tester measurement system and ensure the accuracy of the friction coefficient measurement. The friction coefficients of the Ag coating and the PTFE coating were measured at different sliding-rolling velocities on this tester, and the results showed that the friction coefficient curves agreed well with the Gupta sliding model. The developed tester will provide important data for the dynamic analysis and life evaluation of the cryogenic bearings.https://www.mdpi.com/2075-4442/10/6/119testercryogenic bearingfrictioncryogenic environmentssolid lubricant
spellingShingle Fengbo Liu
Bing Su
Guangtao Zhang
Jiongli Ren
Wenhu Zhang
Development of a Cryogenic Tester with Air Bearing to Test Sliding-Rolling Contact Friction
Lubricants
tester
cryogenic bearing
friction
cryogenic environments
solid lubricant
title Development of a Cryogenic Tester with Air Bearing to Test Sliding-Rolling Contact Friction
title_full Development of a Cryogenic Tester with Air Bearing to Test Sliding-Rolling Contact Friction
title_fullStr Development of a Cryogenic Tester with Air Bearing to Test Sliding-Rolling Contact Friction
title_full_unstemmed Development of a Cryogenic Tester with Air Bearing to Test Sliding-Rolling Contact Friction
title_short Development of a Cryogenic Tester with Air Bearing to Test Sliding-Rolling Contact Friction
title_sort development of a cryogenic tester with air bearing to test sliding rolling contact friction
topic tester
cryogenic bearing
friction
cryogenic environments
solid lubricant
url https://www.mdpi.com/2075-4442/10/6/119
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