>> P.20
1-3PartNumbersPartnumbersarecomposedofthemodelnameandthespecificationname.NMBpartnumbersareuniquetoMinebeaMitsumi.JISpartnumbersrefertothenominalusageregulatedbyJISB1513.NMBPartNumbersModelnameMaterialsymbolsDiplayexampleDDBasicsymbolsSeriessymbolsR-NosymbolSUJ2orequivalentbearingsteelRadialballbearing(metric)DDCEMartensiticstainlesssteelR-(RF-)Thicktype(flanged)Outer/Innerring:SUJ2orequivalentbearingsteelBall:CeramicL-(LF-)Thintype(flanged)A-Ultra-thintypeDimensionsymbols1560Metricdesign1560OuterdiameterInnerdiameter15mm6mmInchdesignThicktypewithlocatingsnapringThintypewithlocatingsnapring418OuterdiameterInnerdiameter4/16"1/8"Seep.30fordetailsRNR-LNR-RI-(R-)RIF-Radialballbearing(inch)Inchtypeoverall*UsedforsomeinchtypesFlangedtypeThrustballbearingsT-With/withoutracewaygrooveSpecialtypesAS-SpecialshapetypeSymbolXInternaldesignsymbolsthereareinnerdiameterTheouteranddimensionsaredisplayed.Wheninternaldesigndifferenceswithinthebasicnumber,theywillbedisplayedattheendofthebasicnumber.Ex.:1560X2OuterdiameterInnerdiameterInternaldesign15mm6mmX2typeSpecificationnameClasssymbolClearancesymbolLubricantsymbolGreaseamountsymbolDisplayexampleP0P25LY121LMetricdimensionseriesRadialclearanceLubricanttypeNosymbol25%~35%(standard)P0P5JISClass0JISClass5InchdimensionseriesABEC1P13P24P25P582.5μm~7.5μm5.0μm~10.0μm5.0μm~12.5μm12.5μm~20.0μmLOLGLYLDOilGreaseGreaseoroilNolubricantABEC3PSeep.52fordetailsSeep.73fordetailsABEC5PA1A3A5XLTHJ5%~10%10%~15%15%~20%40%~50%50%~60%Seep.74fordetailsSeep.40fordetails20DisplaymethodTheradialdirectionlowerandupperlimitdimensionsareconvertedtoinchfiguresfordisplay.Ex.:Forradialclearance5.0μm~12.5μm,conversionintoinchesyields→0.0002"~0.0005"Thesefiguresaredisplayedas"P25".Note1:Greaseamountsareshownaspercentagesoftheinteriorvolume.Note2:Greaseamountsmaybecorrectedforsomeminiaturebearings.
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