Designation:F2591−06(Reapproved2013)StandardSpecificationforBearing,Roller,Tapered,SingleRowofRollers(MetricSeries)1ThisstandardisissuedunderthefixeddesignationF2591;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thisspecificationcoversrequirementsformetricseries,taperedrollerbearingswithasinglerowofrollers.1.2IntendedUse—Thebearingscoveredinthisspecifica-tionareintendedtobeusedingeneralindustrialandvehicleapplicationswheretheoperatingtemperaturedoesnotexceed120°C(250°F).1.3ThisspecificationcontainsmanyoftherequirementsofDS3225,whichwasoriginallydevelopedbytheDepartmentofDefenseandmaintainedbytheDefenseSupplyCenterinRichmond.ThefollowinggovernmentactivitycodesmaybefoundintheDepartmentofDefense,StandardizationDirectorySD-1.2PreparingActivityCustodiansReviewActivitiesDLA-GS4Army-ATArmy-AVNavy-MCNavy–MC,SHAirForce-99AirForce-84Other-NS1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ABMAStandard:3ABMA19.1TaperedRollerBearings—Radial,MetricDe-sign2.2ISOStandard:4ISO5593RollingBearings—Vocabulary2.3MilitaryStandard:5MIL-C-11796CorrosionPreventativeCompound,Petrolatum,HotApplication2.4SAEStandard:6SAEAMS-STD-66Steel:ChemicalCompositionandHard-enability3.Terminology3.1Definitions:3.1.1FordefinitionsoftermsusedinthisspecificationrefertoISO5593.3.1.2effectiveloadcenter—dimension(a)locatesapointontheinnerring(cone)axisthatisthecenterofpressureofallresistingforcess...
