Керамические шарики и гибридный керамические подшипники (Si3N4)
Albert He
Контактное лицо
Основные данные
Asthenameimplies,therollingelementsofhybridceramicbearingsadoptthemostnationwideadvancedgas-pressure-sinteredsilicon-nitride ceramicballs;andthebushingsemploybearingsteelorstainless steel;andthebushingsemploybearingsteelorstainlesssteel.Mainlyadvantagesareasfollows: 1.ResistancetoCorrosion:Withthenatureofcorrosionresistance,Si3N4bearingscouldworkundersuchcorrosiveconditionsasstrongacidity,alkalinityandsalinity. 2.ExtremeTemperatureResistance:Si3N4Ceramicmaterialinhighorlowtemperatureconditions,nodistortion,nodeformation,whichhasgreatdimensionalstability. 3.Self-lubrication:Inthelackoflubricationorlubricationfailturesituations,hybridceramicbearingminimumrunningtimeisatleastthedoubleofsteelbearings. 4.BearingPrecisionLifeSpan:SincetheSi3N4ballshaveSmallfriction,corrosionresistance,hightemperatureresistance,whichimprovedtheaccuracyofbearinglife. 5.TheBearings’ServiceLife:Theelasticmodulusisconsideredasanindicationofhoweasyitisforthematerialtohaveanelasticdeformation.Thelargeritis,thestrongerthestressistogivethematerialanelasticdeformation,orthelargerthematerialstiffnessis,whichalsomeansthesmallerdeformationoccursundertheeffectofcertainamountofstress.Sincetheelasticmodulusofsiliconnitrideceramicbearingsismuchsmallerthanthatofstainlesssteel,thebearings’servicelifecanbelargelyprolonged. Afteracomprehensivecomparisontest,hybridceramicbearinglifethanconventionalsteelbearingatleast3timeslonger,especiallyinhigh-speedoperation,hightemperatureandcorrosivebadcondition.
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