barden_bearing_failures_causes_and cures

《barden_bearing_failures_causes_and cures》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、BEARINGBARDENPRECISIONFAILURE:BEARINGSCAUSESANDCURESBARDENaPRECISIONBEARINGSIdentitgingandcorrectingcausesofbearingfaihue.PrecisionballbearingsaredesignedtohavealongandusefulIi€e.Assumingtheapplicationiscorrecttobeginwith,maximizinglongevitymeansbearingsmustbeproperlyinstalled

2、,lubricatedandmaintained.Pooroperatingenvironments.oarticularlvmoistorcontaminatedareas.indimproperhandlingpracticesinviteprematurebearing-failure.Whenabearingdoesfail,itisimportanttodeterminetheexactcausesoapprcipriateadiusfmentscanbemade.Examinationofth6failuremodeohnreveals

3、thetruecauseoffailure.?hisprocedureiscompli-catedbythefactthatonefailuremodemayinitiateanother.Forexample,corrosioninaballraceleavesrust-anabrasive-whichcancausewear,resultinginlossofpreloadoranincreaseinradialclearance.?heweardebriscan,inagrease-lubricatedbearing,impedelubric

4、ation.resultinginlubricationfailureandsubsequentoverheating.?hisguidewillassistinproperlyidentifyingandanalyzing12primarycausesofbearingfailure.Eachcharacteristicisdescribedindetailandisshownindiagramform,accompaniedbyacolorphotograph.Flaws,inmostcases,arereadilyapparent.Insom

5、ecases,theimperfectionsmaybevirtuallyinvisibletothenakedeye.Specificremediesforeachsituationarealsosuggested.YourAuthorizedBardenRepresentativewillbehappytoprovideyouwithadditionalassistanceuponrequestEXCESVERHEA?FALSELOADisrnlnrstinlBRINE1i'remahL~.u,u..I.rings,ball,Elliptic:

6、....-.areainballpath.markss~teachballpor;ition.LLINGBallin

7、untingsurfaces.EXCESSIVEExcessiveloadsusuallycauseprematurefatigue.itfits,andimproperpreloadingcanalsoringaboutearly$timeEailure,(seeTitFits,p.15andTrue&ine,p.7).'Ibistypeof~luoksthehesaraas~fatigue.&+bavyballwearpaths,evidenceofoverheatingandamorewide@spalling[fafigyearea)are

8、u&evidentwithshortenedlife.?heselutionistoreducetheloadcrrede