Sliding Friction Characteristics of MAC Greases under Vacuum Condition
Even though solid lubricants or low-volatile greases are used for lubrication of mechanical equipments in space satellites, the life of grease is longer than that of solid lubricants because of the hydrodynamic effects and replenishment. New grease using multiply alkylated cyclopentane (MAC) as base...
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Japanese Society of Tribologists
2006
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oai:doaj.org-article:a16c15234d294076a558233c00fc92472021-11-05T09:30:29ZSliding Friction Characteristics of MAC Greases under Vacuum Condition1881-219810.2474/trol.1.14https://doaj.org/article/a16c15234d294076a558233c00fc92472006-09-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/1/1/1_1_14/_pdf/-char/enhttps://doaj.org/toc/1881-2198Even though solid lubricants or low-volatile greases are used for lubrication of mechanical equipments in space satellites, the life of grease is longer than that of solid lubricants because of the hydrodynamic effects and replenishment. New grease using multiply alkylated cyclopentane (MAC) as base oil was developed for space applications. In this paper, the lubrication characteristics of the new grease have been investigated by experiments using the basic friction tester under high vacuum condition. The results clearly show that the difference of thickener influences the lubrication characteristics even if the greases consist of the same base oil, and MAC grease used with non-soap urea thickener was superior to the others.Yasuo YoshiiHitoshi HattoriJapanese Society of Tribologistsarticlegreaseoilthickenervacuumspacemultiply alkylated cyclopentanemacpfpeball on diskPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 1, Iss 1, Pp 14-18 (2006) |
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grease oil thickener vacuum space multiply alkylated cyclopentane mac pfpe ball on disk Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 |
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grease oil thickener vacuum space multiply alkylated cyclopentane mac pfpe ball on disk Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Yasuo Yoshii Hitoshi Hattori Sliding Friction Characteristics of MAC Greases under Vacuum Condition |
description |
Even though solid lubricants or low-volatile greases are used for lubrication of mechanical equipments in space satellites, the life of grease is longer than that of solid lubricants because of the hydrodynamic effects and replenishment. New grease using multiply alkylated cyclopentane (MAC) as base oil was developed for space applications. In this paper, the lubrication characteristics of the new grease have been investigated by experiments using the basic friction tester under high vacuum condition. The results clearly show that the difference of thickener influences the lubrication characteristics even if the greases consist of the same base oil, and MAC grease used with non-soap urea thickener was superior to the others. |
format |
article |
author |
Yasuo Yoshii Hitoshi Hattori |
author_facet |
Yasuo Yoshii Hitoshi Hattori |
author_sort |
Yasuo Yoshii |
title |
Sliding Friction Characteristics of MAC Greases under Vacuum Condition |
title_short |
Sliding Friction Characteristics of MAC Greases under Vacuum Condition |
title_full |
Sliding Friction Characteristics of MAC Greases under Vacuum Condition |
title_fullStr |
Sliding Friction Characteristics of MAC Greases under Vacuum Condition |
title_full_unstemmed |
Sliding Friction Characteristics of MAC Greases under Vacuum Condition |
title_sort |
sliding friction characteristics of mac greases under vacuum condition |
publisher |
Japanese Society of Tribologists |
publishDate |
2006 |
url |
https://doaj.org/article/a16c15234d294076a558233c00fc9247 |
work_keys_str_mv |
AT yasuoyoshii slidingfrictioncharacteristicsofmacgreasesundervacuumcondition AT hitoshihattori slidingfrictioncharacteristicsofmacgreasesundervacuumcondition |
_version_ |
1718444305892245504 |