thk轴承-辊轮随动辊(en)14页

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1、RollerFollowerOuterringSealInnerringSideplateNeedlerollerCageFig.1StructureofRollerFollowerModelNAST-ZZUUStructureandFeaturesTheRollerFollowerisacompactandhighlyrigidbearingsystem.Itcontainsneedlebearingsandisusedasaguiderollerforcamdiscsandlinearmotion.Sinceitsouterringrotateswhilekeepingdirectc

2、ontactwiththematingsurface,thisproductisthick-walledanddesignedtobearanimpactload.Insidetheouterring,needlerollersandaprecisioncageareincorporated.Thispreventstheproductfromskewingandachievesasuperbrotationperformance.And,asaresult,theprod-uctiscapableofeasilywithstandinghigh-speedrotation.Roller

3、FollowerRollerFollowersaredividedintotwotypes:separabletypewhoseinnerringcanbeseparated,andnon-separabletypewhoseinnerringcannotbeseparated.Therearetwotypesoftheouterringinshape:sphericalandcylindrical.Thesphericalouterringeasilyabsorbsadistortionoftheshaftcenterwhenthecamfollowerisinstalledandhe

4、lpslightenabiasedload.qApplications3TheRollerFollowerisusedinawiderangeofapplicationssuchascammechanismsofauto-maticmachines,dedicatedmachinesaswellascarriersystems,conveyors,bookbindingmachines,toolchangersofmachiningcenters,palletchangers,automaticcoatingmachines,slidingforksofautomaticwarehous

5、es.q-3TypesandFeatures●SeparableRollerFollowersModelNASTModelNAST-RModelNASTisaseparabletypeofbearingsystemThismodelisasphericalouterringtypeofmodelNAST.thatcombinesathick-wallouterring,aninnerringIteasilycorrectsadistortionoftheshaftcenterwhentheandneedlerollersequippedwithaprecisioncage.rollerf

6、ollowerisinstalledandhelpslightenabiasedload.ModelNAST-ZZModelNAST-ZZRThisseparabletypeofbearingsystemhasalabyrinthThismodelisasphericalouterringtypeofmodelNAST-ZZ.sealconsistingofapairofsideplatesformedonbothIteasilycorrectsadistortionoftheshaftcenterwhenthesidesoftheinnerringofmodelNAST.rollerf

7、ollowerisinstalled.ModelRNASTModelRNAST-RThismodelisbasicallythesameasmodelThismodelisbasicallythesameasmodelNAST,butdoesnothaveaninnerring.NAST-R,butdoesnothaveaninnerring.Iteasilycorrectsadistortionoftheshaftcenterwh