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1、INTERNATIONA1.STANDARDISO3739-2editionSeCOnd202107Industria1.tyresandrims一P密岬atictyres(metricseries)on5degreestaperedorf1.atbaserims一1.oadratingsPneumatiquesetJantesindustrie1.spourmaterie1.demanuten1.ion一Partie2:Pncumatiques(SGriemi1.1.im6trique)monthssurjantesconiquesa5degresouabasep1.ateCapacites
2、dechargeReferencenumberISO373922021(E)COPYRIGHTPROTECTEDDOCUMENTISO2021岫rkdea/山thUcdOthcnviscjftc三orrtmcehDVBiwixuioiti08phnn11UatiocBhrhotocp)Mng,ptbcatonpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanherequestedfromeitherISOattheaddressbe1.owOr1.sOXSmemberbodyinthecoun
3、tryoftherequester.%,tft晒Iandonnet8CH-1214*crnicr,GenevaPhone：M1.22749O1.11Pub1.ishedinSwitzerhndContentsPageforewordScopeNormativereferencesTermsanddcf1.nitionsReference1.oad-carryingcapacity1.oadratings5.1 Genera1.5.2 Reference1.oad6Inf1.ationpressures3ForewordISO(theInternationa1.OrganizationforSt
4、andardization)isawor1.dwidefederationofnationa1.standardsttiugh(ISOmrtmiw)bMdniK盟committeehasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.Internationa1.organizations,governmenta1.andnon-governmenta1.,in1.iaisonwithISO,a1.sotakepartinthework.ISOco1.1.aboratesc1.ose1.ywiththee1.ectrotechn
5、ica1.standardization.Internationa1.E1.ectrotechnica1.Commission(IEC)ona1.1.mattersofTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenanceare。智SFR幽of1.SOIEC(M1.槐notrttH邻MMfergCCOrdanCe酚Fhtheeditoria1.ru1.esoftheISO/IECDirectives.Part2(seewww.iso.org/direc1.ives).时歌ionrightsd
6、般掂出1n嬲脚Snsi嘏神卿械飒曲doc三棉翩山碰.subjectofanypatentrightsidentifiedduringthedeve1.opmerUW4iewmwVw1.1.beintheIntroductionand/orontheISO1.istofpatentdec1.arationsreceived(seewww.iso.org/pa1.ents).Anytradeusedinthisconstitutenameendorsement.documentisinformationgivenfortheconvenienceofusersanddoesnotForanexp1
7、.anationofthevo1.untarynatureofstandards,themeaningofISOspecifictermsand哪蝴蜘明瓶ationc。的福P奥央融Mthe可般IIi潴称小牖ticn南版淮IS1.华哂瞬聊礴isoforeword.htn1.站用帕曲坦制byTechnica1.CommitteeISO/TC31,Tyres,rimsandva1.ves.SubcommitteeThissecondeditioncance1.sandrep1.acesthefirstedition(ISO3739-2:1992),whichhasbeentechnica1.1.yr
8、evised.Themainchangescomparedtothepreriouseditionareasfo1.1.ows：addedrimdiametercodes1.argerthan15.A1.istofa1.1.partsintheISO3739seriescanbefoundontheISOwebsite.世用电眩&四fihsUW1.ics1.h1.scah8X切RRwtoembe三nationa1.standardsbody.AIndustria1.tyresandrims一Pneumatictyres(metricseries)on5degreestaperedorf1.at
9、baserims1.oadratings1 Scopeindustria1.vehic1.esforuseonpreparedsurfaces.2 Normativereferencesconstitutesrequirements1.atesteditiondocument.referencedreferences,(inc1.udingamendments)app1.ies.app1.ies.baserims-Designation,dimensionsandmarkingISOTermsndustrdefinitionsVrocuf1.f,Part1：TypesOfindustria1.
10、rucksForthepurposesofthisdoament,thetermsanddeRnitionsgiveninISO4223-1andISO5053-1app1.y.ISOOn1.inebrowsingp1.atform:avai1.ab1.eathttps:WWW.iso.org/ObP4Reference1.oad-carryingcapacitytyre.corre1.ationbetween1.oadindexandtyre1.oad-carryingcapacitysha1.1.conformconstructiona1.characteristics)sha1.1.be
11、basedonreferenceinf1.ationpressuresof550kPa,675kPa,Part2:Thisdocumentspecifiesthe1.oadratingsofthemetricseriesofpneumatictyresprimari1.yintendedforISO3739-1dea1.swithdesignation,dimensionsandmarking；ISO3739-3dea1.swithrimcontoursforthesetyres.Thefo1.1.owingdocumentsarereferredtointhetextinsuchawayth
12、atsomeora1.1.oftheircontentundatedreferences,theofthisoftheFordateddocumenton1.ytheanyeditioncitedISO3739-1,Industria1.tyresandrims-Part1：Pneumatictyres(metricseries)on5degreestaperedorf1.atISO4223-1,Definitionsofsometermsusedinthetyreindustry-Part1:Pneumatictyres350531.,trucksISOandIECmaintaintermi
13、no1.ogica1.databasesforuseinstandardizationatthefo1.1.owingaddresses:IECE1.eccropedia:avai1.ab1.eathttp:/www.e1.ectiopedia.org/The100%reference1.oad-carryingcapacityisthe1.oadConespondingtothe1.oadindexmarkedonthetoISOThe37391.Reference1.oad-carryingcapacitiesofsevera1.versionsofthesametyresize(same
14、dimensiona1.and825kPaand1000kPa.51.oadratings5.1 Genera1.speedcapabi1.ityandtyresfromas24givendiameterTab1.etoandTab1.ediametertyresupPermissib1.ediameterTab1.e1Tyre1.oadcapacityratingsforA5tyresupto20riindiametercodeoncounterba1.anced1.ifttrucksupto35km/hupto25km/hTab1.e2130Tyre1.oadcapacityratings
15、forAStyresupto20rimdiametercodeonside%1.oac1.ersSpeedcapabi1.ityofside1.oader：JTab1.e3Tyre1.oadcapacityratingsforA5t)rres%upto20rimdiametercode92.5othervehic1.esSpeedcapabi1.ityofothervehic1.es:ITab1.e4Tyre1.oadcapacityratingsforAS1.OOtyresfrom24rirndiametercodeup8433rimdiametercodeApp1.icationMaxim
16、umspeedMaximumtyre1.oadcapacitykm/h(%ofthereference1.oad)NonterPo1.at1.onauthon犍在哪鼎阳嘟Efttff1.terba1.anced1.ifttruck:S.2Reference1.oad1.oadwhee1.sSteering1.oadwhee1.swhee1.sSteeringwhee1.scodeandTab1.e4forsha1.1.beThepermissib1.e1.oadsforindustria1.tyresarebasedontheirapp1.icationaccordingtovehic1.et
17、ypeandriminTab1.e1,COdeup233rim3forcode.to201.oadsgivenasapercentageofthereference1.oad.App1.icationMaximumspeedMaximumtyre1.oadCaPaCity%100%125%92.5I*151%1000SpeedCaPabi1.ityofcounterba1.anced1.ifttruck:3dwhee1.sSteering1.oadwhee1.swhee1.sSteeringwhee1.s151%130%89%For100%reference1.oad,seeC1.ause4.
18、5.3 Ca1.cu1.ated1.oadCa1.cu1.ated1.oadsfromTab1.es1,2,3,and4sha1.1.beroundedtonearestSkg5.4 Dua1.tyre1.oadWhenfittedindua1.formation,the1.oadforthetwotyresistwicethatforasing1.etyre.6Inf1.ationpressuresOperatingco1.dinf1.ationpressuresshou1.dbeagreedbetweentyreandvehic1.emanufacturerstakinguud,atountpositiono1.ythctyreIoadtteHVyhigIea髀HtFHondHSbrisoAHetheofmraHpionmidoharactcrH311ofthevehic1.e.ICS83.160.99
