南京NSK轴承精度可通过静态数进行测试。然而，只有当轴承以一定的速度和载荷变化时，它才能对基本尺寸的变化作出响应，即工作形状的综合质量和精度，这就要求对单个轴承进行渐进状态检测。轴承故障诊断是机械故障诊断技术的重要组成部分。由于牵引电机的缺点，相当数量的轴承与它有关。一旦发生故障，就会间接影响机车工作。ThebearingaccuracyofNanjingNSKcanbetestedbystaticnumber.However,onlywhenthebearingchangesatacertainspeedandloadcanitrespondtothechangeofthebasicsize,thatis,thecomprehensivequalityandaccuracyoftheworkingshape,whichrequirestheprogressivestatedetectionofasinglebearing.Bearingfaultdiagnosisisanimportantpartofmechanicalfaultdiagnosistechnology.Duetothedrawbackoftractionmotors,ac***iderablenumberofbearingsarerelatedtoit.Oncethefaultoccurs,itwillindirectlyaffectthelocomotivework.那时，滚动轴承故障诊断较为广泛和适用的方法是振动诊断，它分为“易诊断”和“精细诊断”。南京NSK轴承缺点的诊断技术经过多年的发展，取得了很大的进步。当时，国外有许多轴承缺点诊断仪器，并配备了一套高度智能化的检测设备，具有诊断简单、诊断准确的双层功能。JL-201型机车轴承故障诊断仪和JL-501型机车轴承静态检测系统是由铁路部机车车辆研究所研制开发的。Ry适合于电力机车牵引电机轴承的检测与诊断，在实际缺点检测中发挥了很好的作用。Atthattime,therollingbearingfaultdiagnosismorewidelyandapplicablemethodisvibrationdiagnosis,whichisdividedinto"easydiagnosis"and"finediagnosis".ThediagnostictechnologyofNSKbearingdefectsinNanjinghasmadegreatprogressafteryearsofdevelopment.Atthattime,thereweremanyforeignbearingdefectdiagnosisinstruments,andequippedwithasetofhighlyintelligentdetectionequipment,withasimplediagnosis,accuratediagnosisofdouble-deckfunction.JL-201locomotivebearingfaultdiagnosisinstrumentandJL-501locomotivebearingstaticdetectionsystemaredevelopedbylocomotiveandRollingStockResearchInstituteofMinistryofRailway.Ryissuitableforthedetectionanddiagnosisoftractionmotorbearingsofelectriclocomotives,andplaysaverygoodroleintheactualdefectdetection.轴承滚动的工作轨迹和加载方法，内外滚道表面由于滚动接触滚动元件，所以工作轨迹暗，工作轨迹附着在滚道表面不很属于，从而改变了载荷条件。拆下轴承时，应严格观察并观察南京NSK轴承滚道表面轨道。假设轨迹被仔细观察，则只有径向载荷、大的轴向载荷、扭矩载荷或轴承箱上的刚度不等式是已知的。它可以用来检查轴承是否可以添加到试验载荷和偏差设备，并可以作为线索轴承损坏的原因，国立大学。图6-1示出了深沟球轴承在不同载荷条件下的工作轨迹。Bearingrollingtrajectoryandloadingmethod,thesurfaceofinternalandexternalracewaysbecauseofrollingcontactwithrollingelements,sotheworkingtrajectoryisdark,theworkingtrajectoryattachedtotheracewaysurfaceisnotverybelongto,thuschangingtheloadconditi***.Whenthebearingisremoved,thesurfacetrackofNanjingNSKbearingracewayshouldbeobservedandobservedstrictly.Assumingthatthetrajectoryiscarefullyobserved,onlyradialloads,largeaxialloads,torqueloads,orstiffnessinequalitiesonthebearingboxareknown.Itcanbeusedtocheckwhetherbearingscanbeaddedtotestloadsanddeviationequipment,andcanbeusedasacauseofcluebearingdamage,NationalUniversity.Fig.6-1showstheworkingtrajectoriesofdeepgrooveballbearingsunderdifferentloadconditi***.（a）当内圈发生变化时，正常工作轨道仅承受径向载荷。（c）~（h）所示的工作轨迹对南京NSK轴承的影响较小，使用寿命相对较短。滚子轴承的工作轨迹是相同的。（1）内圈负荷变化时，圆柱滚子轴承的工作轨迹发生变化。当径向载荷增大时，圆柱滚子轴承外圈的工作轨迹更加。(j)内外圈须倾斜，轴挠度大于轨道，轨道在滚道表面上，轨道在负载环出口处的阴影的纵向舱口处倾斜，双列圆锥滚子轴承改变内圈。K意味着只有外环的工作轨道被加载在径向载荷上。L表示轨道仅承受轴向载荷。当内环和外环明显倾斜且仅承受南京NSK轴承径向载荷时，轨迹偏离两个轨迹平面180。(a)whentheinnerringchanges,thenormalworkingtrackonlybearsradialload.(c)thetrackshownin~(H)haslittleeffectontheNSKbearinginNanjing,andtheservicelifeisrelativelyshort.Theworkingtrackofrollerbearingsisthesame.(1)whentheinnerringloadchanges,theworkingtrackofcylindricalrollerbearingschanges.Whentheradialloadincreases,theworkingtrackofcylindricalrollerbearingouterringismore.(j)Theinnerandouterringsmustbetilted,theshaftdeflectionisgreaterthanthetrack,thetrackisontheracewaysurface,thetrackistiltedatthelongitudinalhatchoftheshadowattheexitoftheloadring,andthedoublerowtaperedrollerbearingschangetheinnerring.Kmeansthatonlytheworkingtrackoftheouterringisloadedontheradialload.Lindicatesthatthetrackonlybearsaxialload.Thetrajectorydeviatesfromthetwotrajectoryplanes180whentheinnerandouterringstilt***iouslyandonlybeartheradialloadofNanjingNSKbearing.文章来自：南京SKF轴承www.wh-Thearticleisfrom:NanjingSKFbearingwww.wh-文章来自：南京INA轴承a-Thearticleisfrom:NanjingINAbearinga-文章来自：南京NSK轴承Thearticleisfrom:NanjingNSKbearing***：524085168电话：0510-81207777手机：13311666672)