ANSI-AGMA-2015-1-A01

ANSI/AGMA2015-1-A01ANSI/AGMA2015-1-A01(ReplacesANSI/AGMA2000--A88)AMERICANNATIONALSTANDARDAccuracyClassificationSystem-TangentialMeasurementsforCylindricalGearsiiAccuracyClassificationSystem-TangentialMeasurementsforCylindricalGearsANSI/AGMA2015--1--A01[RevisionofANSI/AGMA2000--A88]ApprovalofanAmericanNationalStandardrequiresverificationbyANSIthattherequire-mentsfordueprocess,consensus,andothercriteriaforapprovalhavebeenmetbythestandardsdeveloper.Consensusisestablishedwhen,inthejudgmentoftheANSIBoardofStandardsReview,substantialagreementhasbeenreachedbydirectlyandmateriallyaffectedinterests.Substantialagreementmeansmuchmorethanasimplemajority,butnotnecessarilyuna-nimity.Consensusrequiresthatallviewsandobjectionsbeconsidered,andthataconcertedeffortbemadetowardtheirresolution.TheuseofAmericanNationalStandardsiscompletelyvoluntary;theirexistencedoesnotinanyrespectprecludeanyone,whetherhehasapprovedthestandardsornot,frommanufacturing,marketing,purchasing,orusingproducts,processes,orproceduresnotconformingtothestandards.TheAmericanNationalStandardsInstitutedoesnotdevelopstandardsandwillinnocircumstancesgiveaninterpretationofanyAmericanNationalStandard.Moreover,nopersonshallhavetherightorauthoritytoissueaninterpretationofanAmericanNationalStandardinthenameoftheAmericanNationalStandardsInstitute.Requestsforinterpre-tationofthisstandardshouldbeaddressedtotheAmericanGearManufacturersAssociation.CAUTIONNOTICE:AGMAtechnicalpublicationsaresubjecttoconstantimprovement,revision,orwithdrawalasdictatedbyexperience.AnypersonwhoreferstoanyAGMAtechnicalpublicationshouldbesurethatthepublicationisthelatestavailablefromtheAs-sociationonthesubjectmatter.[Tablesorotherself--supportingsectionsmaybequotedorextracted.Creditlinesshouldread:ExtractedfromANSI/AGMA2015--1--A01,AccuracyClassificationSystem--TangentialMeasurementsforCylindricalGears,withthepermissionofthepublisher,theAmericanGearManufacturersAssociation,1500KingStreet,Suite201,Alexandria,Virginia22314.]ApprovedAugust1,2002ABSTRACTThisstandard,forspurandhelicalgearing,correlatesgearaccuracygradeswithgeartoothtolerances.Itpro-videsinformationonminimumrequirementsforaccuracygroupsaswellasgearmeasuringpractices.Annexmaterialprovidesguidanceonfilteringandinformationoncomparisonofgearinspectionmethods.PublishedbyAmericanGearManufacturersAssociation1500KingStreet,Suite201,Alexandria,Virginia22314Copyright2002byAmericanGearManufacturersAssociationAllrightsreserved.Nopartofthispublicationmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutpriorwrittenpermissionofthepublisher.PrintedintheUnitedStatesofAmericaISBN:1--55589--797--5AmericanNationalStandardANSI/AGMA2015--1--A01AMERICANNATIONALSTANDARDiiiContentsPageForewordiv...............................................................1Scope1.............................................................2Normativereferences1................................................3Symbols,terminologyanddefinitions2..................................4Manufacturingandpurchasingconsiderations8...........................5ApplicationoftheAGMAclassificationsystem14.........................6Measuringmethodsandpractices14....................................7Tolerancevalues14...................................................8Mastergears16......................................................AnnexesATolerancetables17...................................................BTolerancesystemdevelopmentandcomparison21........................CExampleofstatisticalprocesscontrol(SPC)application31.................DInvoluteandhelixdatafiltering33.......................................ESectorpitchdeviation35...............................................Bibliography37...........................................................Figures1Helixdeviations4.....................................................2Profiledeviations5...................................................3Functionalprofile6...................................................4Pitchdeviations7.....................................................5IllustrationofAGMAclassificationnumber14.............................Tables1Alphabeticaltableoftermswithsymbols,byterms2.......................2Alphabeticaltableofsymbolswithterms,bysymbols3....................3Referenceformethodsandtolerances9.................................4Geartypesandmeasurementmethods10...............................5Minimumnumberofmeasurements10..................................ANSI/AGMA2015--1--A01AMERICANNATIONALSTANDARDivForeword[Theforeword,footnotesandannexes,ifany,inthisdocumentareprovidedforinformationalpurposesonlyandarenottobeconstruedasapartofANSI/AGMAStandard2015--1--A01,AccuracyClassificationSystem--TangentialMeasurementsforCylindricalGears.]ThisstandardprovidestolerancesfordifferentgearaccuracygradesfromA2toA11forunassembledspurandhelicalgears.Applicabledefinitionsareprovided.Thepurposeistoprovideacommonbasisforspecifyingaccuracy,andfortheprocurementofunassembledgears.Itisnotadesignmanualfordeterminingthespeci