Designation:F2590−06(Reapproved2013)StandardSpecificationforBearing,Roller,Thrust,TwoChanneledRaceSurface,RigidorFlatSeatType1ThisstandardisissuedunderthefixeddesignationF2590;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversrequirementsforrigidorflatseattype,twochanneledracesurface,thrustrollerbearings.1.2IntendedUse—Thebearingscoveredinthisspecifica-tionareintendedforuseinslowrotatingoroscillatingapplicationswherepurethrustloadsareapplied.1.3ThisspecificationcontainsmanyoftherequirementsofMS17169,whichwasoriginallydevelopedbytheDepartmentofDefenseandmaintainedbytheDefenseSupplyCenterinRichmond.ThefollowinggovernmentactivitycodesmaybefoundintheDepartmentofDefense,StandardizationDirectorySD-1.2PreparingActivityCustodiansReviewActivitiesDLA-GS4Army-ATArmy-MINavy-MCAirForce-84AirForce-99DLA-GS41.4Fordesignfeaturepurposes,thisspecificationtakesprecedenceoverprocurementdocumentsreferencedherein.1.5Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ABMAStandard:3ABMAStd.1TerminologyforAnti-FrictionBallandRollerBearingsandParts2.2ASMEStandard:4ASMEB46.1SurfaceTexture(SurfaceRoughness,Waviness,andLay)2.3ISOStandard:5ISO5593RollingBearings—Vocabulary2.4MilitaryStandards:6MIL-STD-102ElectronicandElectricalComponentPartsMIL-STD-129MilitaryMarkingforShipmentandStorageMIL-STD-130IdentificationMarkingofU.S.MilitaryProp-erty2.5SAEStandard:7SAEAMS-ST...
