BS 919-1-2007 Screw gauge limits and tolerances. Specification for gauges for screw threads of unified form

《BS 919-1-2007 Screw gauge limits and tolerances. Specification for gauges for screw threads of unified form》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、BS919-1:2007BRITISHSTANDARDScrewgaugelimitsandtolerances–Part1:SpecificationforgaugesforscrewthreadsofunifiedformICS21.040.30NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWLicensedCopy:LondonSouthBankUniversity,LondonSouthBankUniversity,WedDec0514:56:55GMT+00:002007,Uncontroll

2、edCopy,(c)BSIBS919-1:2007PublishingandcopyrightinformationTheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.©BSI2007ISBN9780580579332ThefollowingBSIreferencesrelatetotheworkonthisstandard:CommitteereferenceTDW/4Draftforcomment07/30158512DCPublicationhistoryF

3、irstpublishedApril1952Secondedition,December1960Thirdedition,November2007AmendmentsissuedsincepublicationAmd.no.DateTextaffectedLicensedCopy:LondonSouthBankUniversity,LondonSouthBankUniversity,WedDec0514:56:55GMT+00:002007,UncontrolledCopy,(c)BSIBS919-1:2007ContentsForewordiii1Scope12Norma

4、tivereferences13Termsanddefinitionsandsymbols14Design25Tolerancesandthreadforms36Marking25AnnexesAnnexA(informative)VerifyingconformitywithBS158026AnnexB(informative)Conventionalillustrationoftolerancezones34AnnexC(informative)Effectivediameterequivalentofpitchandangleerrors34AnnexD(inform

5、ative)Asystemofgaugingforscrewthreadsbeforeandaftercoating37AnnexE(informative)Settingtosizeofadjustablescrewringgauges40AnnexF(informative)ComparisonbetweenthedesignationsofBritishandAmericangauges42AnnexG(informative)Tolerancesformajor,effectiveandminordiametersandflankangleandpitch43Ann

6、exH(informative)Hardness44Bibliography45ListoffiguresFigure1–Dispositionofeffectivewww.bzfxw.comdiametertolerancezonesforscrewgauges18Figure2–ThreadformsofGOgauges20Figure3–ThreadformsofNOTGOgauges21Figure4–FormsofthreadforNOTGOeffectivediameterscrewgauges22Figure5–Threadformsofsettingplug

7、s24FigureB.1–Limitsandtolerancesfortheeffectivediametersofinternalandexternalthreads34ListoftablesTable1–TolerancesforGOscrewpluggauges–allclasses5Table2–TolerancesforNOTGOscrewpluggauges–allclasses6Table3–TolerancesforGOandNOTGOplainpluggaugesforminordiameter