>> P.106
IdentificationnumberStandardMass(Ref.)ClosedendMass(Ref.)GreaseretainedMass(Ref.)g─────25.538.551.5──────42.5─────YB188YB1812YB1816──────YB1910g────────496471.578───────────g────────────────BHA1812ZBHA1816ZBHA1818ZBHA1820Z456067.573.5BHAM1812BHAM1816BHAM1818BHAM1820─────────BAM1910BAM1916─37.557─Mass(Ref.)g18.1233342.552───────BAM186BAM188BAM1812BAM1816BAM1820───────14.519.529.53948.5───────32.552BA186ZBA188ZBA1812ZBA1816ZBA1820Z───────28.575(11╱8)30.162(13╱16)BA1910ZBA1916Z─Shaftdia.28.575-30.162mmShaftdia.mm(inch)StandardMass(Ref.)gClosedendSHELLTYPENEEDLEROLLERBEARINGSInchSeriesNote(1)Allowablerotationalspeedappliestooillubrication.Forgreaselubrication,amaximumof60%ofthisvalueisallowable.RemarkShellTypeGreaseRetainedFullComplementNeedleRollerBearingsareprovidedwithprepackedgrease.Standardtypeandclosedendtypebearingsarenotprovidedwithprepackedgrease,soperformproperlubricationwhenusingthesetypesofbearings.B39
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