Friction Characteristics of Microgrooved Bearings under Mixed Lubrication

In this paper, the friction characteristics of microgrooved bearings are examined experimentally and theoretically. The microgrooved bearings have an advantage of suppressing the oil film temperature rises under the heavy loaded conditions. Therefore, this type of bearings are effectively used for a...

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Autores principales:	Katsuhiro Ashihara, Hiromu Hashimoto
Formato:	article
Lenguaje:	EN
Publicado:	Japanese Society of Tribologists 2008
Materias:	journal bearings mixed lubrication microgroove friction characteristics experimental work theoretical model Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/965b6e56805947a2a644ad42efad4c72
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spelling	oai:doaj.org-article:965b6e56805947a2a644ad42efad4c722021-11-05T09:28:53ZFriction Characteristics of Microgrooved Bearings under Mixed Lubrication1881-219810.2474/trol.3.304https://doaj.org/article/965b6e56805947a2a644ad42efad4c722008-10-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/3/5/3_5_304/_pdf/-char/enhttps://doaj.org/toc/1881-2198In this paper, the friction characteristics of microgrooved bearings are examined experimentally and theoretically. The microgrooved bearings have an advantage of suppressing the oil film temperature rises under the heavy loaded conditions. Therefore, this type of bearings are effectively used for automotive engines, for example. However, with the trends of severe operating conditions using very low viscosity oils for the requirements of energy saving, the bearings are increasingly operated under the mixed lubrication conditions. To protect the bearing surface from damage such as seizure and fatigue, it is strongly needed to know the friction characteristics of microgrooved bearings operated under the mixed lubrication conditions. In the experiments, the bearing backside temperature, friction force, friction coefficient and bearing surface topography were measured by changing the applied unit load step by step, and the measured results were compared with the predicted results calculated by the mixed lubrication model. There were good agreements between them and the friction characteristics of microgrooved bearings were clarified experimentally and theoretically.Katsuhiro AshiharaHiromu HashimotoJapanese Society of Tribologistsarticlejournal bearingsmixed lubricationmicrogroovefriction characteristicsexperimental worktheoretical modelPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 3, Iss 5, Pp 304-309 (2008)
institution	DOAJ
collection	DOAJ
language	EN
topic	journal bearings mixed lubrication microgroove friction characteristics experimental work theoretical model Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999
spellingShingle	journal bearings mixed lubrication microgroove friction characteristics experimental work theoretical model Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Katsuhiro Ashihara Hiromu Hashimoto Friction Characteristics of Microgrooved Bearings under Mixed Lubrication
description	In this paper, the friction characteristics of microgrooved bearings are examined experimentally and theoretically. The microgrooved bearings have an advantage of suppressing the oil film temperature rises under the heavy loaded conditions. Therefore, this type of bearings are effectively used for automotive engines, for example. However, with the trends of severe operating conditions using very low viscosity oils for the requirements of energy saving, the bearings are increasingly operated under the mixed lubrication conditions. To protect the bearing surface from damage such as seizure and fatigue, it is strongly needed to know the friction characteristics of microgrooved bearings operated under the mixed lubrication conditions. In the experiments, the bearing backside temperature, friction force, friction coefficient and bearing surface topography were measured by changing the applied unit load step by step, and the measured results were compared with the predicted results calculated by the mixed lubrication model. There were good agreements between them and the friction characteristics of microgrooved bearings were clarified experimentally and theoretically.
format	article
author	Katsuhiro Ashihara Hiromu Hashimoto
author_facet	Katsuhiro Ashihara Hiromu Hashimoto
author_sort	Katsuhiro Ashihara
title	Friction Characteristics of Microgrooved Bearings under Mixed Lubrication
title_short	Friction Characteristics of Microgrooved Bearings under Mixed Lubrication
title_full	Friction Characteristics of Microgrooved Bearings under Mixed Lubrication
title_fullStr	Friction Characteristics of Microgrooved Bearings under Mixed Lubrication
title_full_unstemmed	Friction Characteristics of Microgrooved Bearings under Mixed Lubrication
title_sort	friction characteristics of microgrooved bearings under mixed lubrication
publisher	Japanese Society of Tribologists
publishDate	2008
url	https://doaj.org/article/965b6e56805947a2a644ad42efad4c72
work_keys_str_mv	AT katsuhiroashihara frictioncharacteristicsofmicrogroovedbearingsundermixedlubrication AT hiromuhashimoto frictioncharacteristicsofmicrogroovedbearingsundermixedlubrication
_version_	1718444362509058048

Friction Characteristics of Microgrooved Bearings under Mixed Lubrication

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