BS 46-1-1958 键和键槽及锥形销.键和键槽规范

BRITISHSTANDARDCONFIRMEDOCTOBER1985BS46-1:1958IncorporatingAmendmentNos.1,2and3SpecificationforKeysandkeywaysUDC621.886.8LicensedCopy:LondonSouthBankUniversity,LondonSouthBankUniversity,SunAug1316:12:00BST2006,UncontrolledCopy,(c)BSIBS46-1:1958ThisBritishStandard,havingbeenapprovedbytheMechanicalEngineeringIndustryStandardsCommitteeandendorsedbytheChairmanoftheEngineeringDivisionalCouncil,waspublishedundertheauthorityoftheGeneralCouncilon30May1958©BSI01-2000Firstpublished(asBS46)September1909Firstrevision(asBS46-1)October1924SecondrevisionApril1929ThirdrevisionFebruary1953FourthrevisionMay1958ThefollowingBSIreferencesrelatetotheworkonthisstandard:—Committeereferences,MEE/4,MEE/4/4DraftforcommentCX(MEE)6855ISBN0580355829Co-operatingorganizationsTheMechanicalEngineeringIndustryStandardsCommittee,underwhosesupervisionthisBritishStandardwasprepared,consistsofrepresentativesfromthefollowingGovernmentdepartmentsandscientificandindustrialorganizations:—Admiralty*HighCommissionofIndia*AirMinistryInstituteofMarineEngineersAssociatedOfficers’TechnicalCommitteeInstituteofPetroleumAssociationofConsultingEngineersInstitutionofCivilEngineers(Incorporated)InstitutionofGasEngineersBritishChemicalPlantManufacturers’InstitutionofHeatingandVentilatingAssociationEngineersBritishCompressedAirSocietyInstitutionofMechanicalEngineers*BritishElectricalandAlliedManufacturers’InstitutionofMechanicalEngineersAssociation*(AutomobileDivision)BritishEngineers’Association*InstitutionofProductionEngineers*BritishGearManufacturers’Association*LocomotiveandAlliedManufacturers’BritishInternalCombustionEngineAssociationofGreatBritain*Manufacturers’Association*MachineToolTradesAssociation*BritishIronandSteelFederation*MinistryofLabourandNationalServiceBritishRailways,TheBritishTransport(FactoryInspectorate)CommissionMinistryofPowerCrownAgentsforOverseaGovernmentsandMinistryofSupply*AdministrationsMinistryofTransportandCivilAviationD.S.I.R.—MechanicalEngineeringResearchMinistryofWorksLaboratory*NationalCoalBoardElectricityCouncil,theGeneratingBoardandNationalPhysicalLaboratory(D.S.I.R.)AreaBoardsinEnglandandWalesRadioIndustryCouncilEngineeringEquipmentUsers’Association*WarOfficeGasCouncilTheorganizationsmarkedwithanasteriskintheabovelist,togetherwiththefollowing,weredirectlyrepresentedontheCommitteeentrustedwiththepreparationofthisstandard:—AssociationofCraneMakersKeymakers’AssociationBrightSteelBarAssociationMillingCutterandReamerAssociationBritishCycleandMotorCycleIndustries’NorthEastCoastInstitutionofEngineersandAssociationShipbuildersBritishInternalCombustionEngineResearchSocietyofBritishAircraftConstructorsAssociationSteelworksPlantAssociationBritishShipbuildingResearchAssociationTaperPinManufacturers’AssociationGaugeandToolMakers’AssociationInstitutionofEngineersandShipbuildersinScotlandAmendmentsissuedsincepublicationAmd.No.DateofissueCommentsPD3375May1959PD4022January1961PD5124January1964IndicatedbyasidelineinthemarginLicensedCopy:LondonSouthBankUniversity,LondonSouthBankUniversity,SunAug1316:12:00BST2006,UncontrolledCopy,(c)BSIBS46-1:1958©BSI01-2000iContentsPageCo-operatingorganizationsInsidefrontcoverForewordii1Scope12Materials13Theapplicationofkeysandkeyways1a)Parallelkeys1b)Taperkeys1c)Tangentialkeys2d)Woodruffkeys24Dimensionsandtolerancesofparallelandtaperkeysandkeyways25DimensionsandtolerancesofWoodruffkeysandkeyways36Dimensionsoftangentialkeysandkeyways167Dimensionsofkeysandkeywaysformarinetailshafts178Keysandkeywaysfortaperedshaftends19AppendixAPreferredlengthsofkeys20AppendixBApproximateequivalentsofmetricandinchunits22Figure1—Variationinkeywaydepthintapershaft19Figure2—Typesofkeyandpositionofkeywayinshaft18Table1—Rectangularparallelkeys,keywaysandkeybars4Table2—Squareparallelkeys,keywaysandkeybars6Table3—Rectangulartaperkeysandkeyways,gib-headorplain9Table4—Squaretaperkeysandkeyways,gib-headorplain10Table5—Woodruffkeysandkeyways12Table6—ComparisonofWoodruffkeynumbers(Whitney,BritishandAmerican)14Table7—Tangentialkeys16Table8—Rectangularparallelkeysformarinetailshafts17Table9—Preferredlengthsofplainkeys,rectangularorsquaresection,parallelortaper20Table10—Preferredlengthsofgib-headkeysrectangularorsquaresection21LicensedCopy:LondonSouthBankUniversity,LondonSouthBankUniversity,SunAug1316:12:00BST2006,UncontrolledCopy,(c)BSIBS46-1:1958ii©BSI01-2000ForewordThisstandardmakesreferencetothefollowingBritishStandards:BS308,Engineeringdrawingpractice.BS350,Conversionfactorsandtables.BS970,Wroughtsteels.BS1916,Limitsandfitsforengineering.ThestandardizationofkeysandkeywayswasfirstconsideredbytheEngineeringStandardsCommittee(theoriginalnameandformofthepresentBSI).AsaresultStandardSpecificationNo.46,dealingonlywithrectangularparallelkeys,keybarsandkeyways,waspublishedin1909.Insubsequentrevisions,othertypesofkeyswereaddedtothestandardandParts2and3ofBS46werepreparedforparallelsplinesandtaperpinsrespectively.Parts2and3havesincebeenfurtherrevisedandPart2hasbeenpublishedasBS2059.ThisrevisionofBS46-1forKeysandkeywayshasbeenpreparedundertheauthority