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BS 919-2-2007 Screw gauge limits and tolerances – Part 2 Specification for gauges for screw threads of Whitworth and B.A. forms

BS 919-2-2007 Screw gauge limits and tolerances – Part 2 Specification for gauges for screw threads of Whitworth and B.A. forms

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时间：2018-11-27

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1、BS919-2:2007BRITISHSTANDARDScrewgaugelimitsand--`,,```,,,,````-`-`,,`,,`,`,,`---tolerances–Part2:SpecificationforgaugesforscrewthreadsofWhitworthandB.A.formsICS21.040.20NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWCopyrightBritishStandardsInstitutionProvidedbyIHSunderlic

2、ensewithBSI-UncontrolledCopyNoreproductionornetworkingpermittedwithoutlicensefromIHSNotforResaleBS919-2:2007PublishingandcopyrightinformationTheBSIcopyrightnoticedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.©BSI2007ISBN9780580579349ThefollowingBSIreferencesrelatetothewo

3、rkonthisstandard:CommitteereferenceTDW/4Draftforcomment07/30158515DCPublicationhistoryFirstpublished1940Secondedition,December1952Thirdedition,November1971Fourthedition,November2007AmendmentsissuedsincepublicationAmd.no.DateTextaffected--`,,```,,,,````-`-`,,`,,`,`,,`---CopyrightBritish

4、StandardsInstitutionProvidedbyIHSunderlicensewithBSI-UncontrolledCopyNoreproductionornetworkingpermittedwithoutlicensefromIHSNotforResaleBS919-2:2007ContentsForewordiii1Scope12Normativereferences13Termsanddefinitionsandsymbols24Design35Dispositionofgaugetolerancezones46Gaugesforinterna

5、lscrewthreads67Gaugesforexternalscrewthreadsandtheirsettingplugs78Marking10AnnexesAnnexA(informative)Functionandmethodofuseofvariousgaugetypes21AnnexB(informative)Conventionalillustrationoftolerancezones25AnnexC(informative)Effectivediameterequivalentofpitchandangleerrors26AnnexD(norma

6、tive)ThreadformofNOTGOeffectivediametergauges29AnnexE(informative)Hardness33Bibliography34ListoffiguresFigure1–Dispositionofeffectivediametertolerancezonesforscrewgauges5Figure2–FormsofthreadofGOscrewgauges8Figure3–GeneralGOscrewpluggaugeswww.bzfxw.com11Figure4–ReferenceGOscrewpluggaug

7、es12Figure5–NOTGOeffectivediameterpluggauges13Figure6–GOandNOTGOplainpluggaugesforminordiameters14Figure7–GeneralGOscrewringandGOthreadcallipergauges15Figure8–NOTGOeffectivediameterringgaugesandthreadcallipergauges16Figure9–GOandNOTGOplaincalliper(GAP)gaugesformajordiameters17Figure1

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