>> P.184
D45MACHINEDTYPENEEDLEROLLERBEARINGSWithInnerRingShaftdia.mmIdentificationnumberMass(Ref.)gNA49NA69NA48TAFITRIGTRId─NA4972──NA4872───────2640060200360360360─NA4976──NA4876───────4460090300380380380NA4980─────94400400400NA4984─────98500420420NA4988─────131000440440Notes(1)Minimumallowablevalueofchamferdimensionr(2)Allowableaxialshiftamountofinnerringtoouterring(3)Allowablerotationalspeedappliestooillubrication.Forgreaselubrication,amaximumof60%ofthisvalueisallowable.Remarks1.Theouterringhasanoilgrooveandanoilhole.2.Nogreaseisprepacked.Performproperlubrication.Shaftdia.360-440mm