南京NSK轴承验证中需要满足的设计约束主要是为了避免轴承失效，确保轴承在规定的时限内正常工作。在正常情况下，轴承在不同条件下的主要失效形式不同。Thedesignc***traintsneededtobemetinNanjingNSKbearingverificationaremainlyto***oidbearingfailureandensurethatthebearingworksnormallywithintheprescribedtimelimit.Undernormalconditi***,themainfailuremodesofbearingsunderdifferentconditi***aredifferent.此外，安装、拆卸和操作不当也可能对轴承部件造成损坏，如损坏，应避免。Inaddition,improperinstallation,disassemblyandoperationmayalsocausedamagetobearingparts,suchasdamage,shouldbe***oided.1，疲劳点蚀1,fatiguepitting.实践证明，在南京NSK轴承适当的润滑和密封条件下，当安装和维护条件正常时，大多数轴承由于沿环滚动而接触物体表面层，并具有不同的接触应力。在一定次数的循环之后，这种应力将导致表面层中的微裂纹不深。微裂纹是润滑油在其上的点蚀。Practicehasprovedthatundertheproperlubricationandsealingconditi***ofNanjingNSKbearings,whentheinstallationandmaintenanceconditi***arenormal,mostbearingscontactthesurfacelayeroftheobjectduetorollingalongthering,andh***edifferentcontactstress.Afteracertainnumberofcycles,thisstresswillcausethemicrocracksinthesurfacelayernotdeep.Microcracksarethepittingcorrosionoflubricatingoilonthem.2，塑性变形2,plasticdeformation当南京NSK轴承静载荷和冲击载荷过大时，滚道或环形路面不均匀，塑性变形不均匀。这主要发生在具有非常低或摆动速度的轴承中。WhenthestaticloadandimpactloadofNanjingNSKbearingaretoolarge,theracewayorringroadsurfaceisnotuniform,andtheplasticdeformationisnotuniform.Thisoccursmainlyinbearingswithveryloworswingingspeed.3，磨料磨损和粘着磨损。3,abrasivewearandadhesivewear.进口轴承在密封和粉尘操作条件下不可靠，易磨损。南京NSK轴承通常在辊和环之间有滑动摩擦，特别是在滚子和保持架之间。如果润滑不好并且热严重，滚动元件可能会引起摩擦甚至磨损。速度越高，磨损越严重。Importedbearingsarenotreliableandeasytowearundersealanddustoperationconditi***.NanjingNSKbearingsusuallyh***eslidingfrictionbetweenrollersandrings,especiallybetweenrollersandcages.Ifthelubricationisnotgoodandtheheatisserious,therollingelementmaycausefrictionorevenwear.Thehigherthespeed,themoreseriousthewear.疲劳点蚀是轴承在中速下运行的主要失效形式。设计约束是保证轴承具有足够的疲劳寿命，应根据疲劳寿命进行校核和计算。Fatiguepittingisthemainfailuremodeofbearingsrunningatmediumspeed.Thedesignc***traintistoensurethatthebearinghassufficientfatiguelife,whichshouldbecheckedandcalculatedaccordingtothefatiguelife.对于南京NSK轴承，由于高的加热，经常发生过度磨损和温高损伤。除了确保轴承足够的疲劳寿命外，设计约束还应制约速度不超过极限值，即除了寿命计算外，还应检查极限速度。ForNSKbearingsinNanjing,excessivewearandhightemperaturedamageoftenoccurduetohighheating.Inadditiontoensuringsufficientfatiguelifeofbearings,designc***traintsshouldalsorestrictthespeednottoexceedthelimitvalue,thatis,inadditiontolifecalculation,thelimitspeedshouldalsobechecked.对于低速或低速轴承，主要失效模式是过度塑性变形。设计约束是防止过大的塑性变形，这需要静态强度校核。Forlowspeedorlowspeedbearings,themainfailuremodeisexcessiveplasticdeformation.Thedesignc***traintistopreventexcessiveplasticdeformation,whichrequiresstaticstrengthchecking.此外，轴承组合结构设计合理，保证了充分的润滑和可靠的密封，对提高轴承寿命和保证正常运行具有重要意义。Inaddition,thebearingcombinationstructuredesignisreasonabletoensureadequatelubricationandreliablesealing,toimprovebearinglifeandensurenormaloperationisofgreatsignificance.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)