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 Withthedevelopmentofthemodernmachinery,higherperformancesarebringforwardontherollingbearings.Forexample,theordinarysteelrollingbearinghasalreadybeenfarfrommeetingdemandsonthesuperhigh-temperature,highspeed,lowtemperature,corrode,nolubrication.Inthesesituations,lotsofenterprisesbothchineseandforeigncompaniesareengagedinresearchinganddevelopingthenewrollingbearings.Ceramichybridbearingwithitsinnerringandouterringaremadeofmetal,rollingelementareadvancedceramicballs,becomemostpromisingnewproductioninbearingfield.Theadvantagesareshowingasfollowing1.
1.Highrotatingspeed
Caloricpowerandabrasionreducegreatlyforrelativeslidemechanismbetweenceramicandsteelmaterial,thespeedreachashighas3500000DNunderoilfoglubrication,andreachesashighas1200000DNunderthegreaselubricator.
2.Longservicelife
Thelifeoftheceramicbearingis3to5timesoftheallsteelbearingunderthesameconditions.
3.Self-lubrication
Evenlubricatedconditionveryseriousorundertheun-lubricatedstate,ceramicbearingworknormallyforitsuniqueself-lubricatedfunction.
4.Corrosion-resistant
Ceramicbearinghavefinecorrosion-resistantperformance,itcanworknormallyincorrosivemedium.
5.Highelasticmodule
Theelasticmouldconstantoftheceramicmaterialishigherby50%thanthesteel,thusimprovedtherigidityofthebearinggreatly.
6.Lowfrictiontorque
Thefrictionalforceofceramicmaterialwithothermaterialissmall,evenintermsthatthemarginislubricated,thesurfaceisstillverysmooth.Sorotatedfrictionisverylow.
7.Wear-resistant
ThehardnessofceramicmaterialisaboutHv1700,sothatwecanimproveperformancewear-resistantofthebearinggreatly.
8.Lightweight
Theceramicmaterialislighterby60%thansteel,andreducethewholeweightandcentrifugalforceofceramicbearing.
9.Specialperformance
Allceramicpartsareinsulatingandhavenomagnetism.
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