China wholesaler 10bss-2 Duplex Stainless Steel Gearbox Belt Transmission Parts Engineering and Construction Machinery Short Pitch Roller Chains and Bush Chain near me factory
ProductDescription Chain No. Pitch Pmm Rollerdiameter d1maxmm Widthbetweeninner platesb1minmm Pindiameter d2maxmm Pinlength Innerplatedepthh2maxmm Platethickness t/Tmaxmm Transversepitch Ptmm Breakingload QkN/lbf Weightpermeterqkg/m Lmaxmm Lcmaxmm 10BSS-2 15.875 10.sixteen nine.sixty five five.08 36.ten 37.fifty fourteen.70 one.70 sixteen.fifty nine 29.1/6542 1.ninety six *Bushchain:d1inthetableindicatestheexternaldiameterofthebush*StraightsideplatesStainless steel chains are suitable for corrosive conditions involving food,chemicalspharmaceuticals,and so on.and also suitable for high and low temperature conditions. RollerchainRollerchainorbushrollerchainisthetypeofchaindrivemostcommonlyusedfortransmissionofmechanicalpoweronmanykindsofdomestic,industrialandagriculturalmachinery,includingconveyors,wire-andtube-drawingmachines,printingpresses,vehicles,bikes,andbicycles.Itconsistsofa seriesofshortcylindricalrollersheldtogetherbysidelinks.Itisdrivenbya toothedwheelcalleda sprocket.Itisa simple,trustworthy,andefficient[1] meansofpowertransmission. ThoughHansRenoldiscreditedwithinventingtherollerchainin1880,sketchesbyLeonardodaVinciinthe16thcenturyshowa chainwitha rollerbearing. ConstructionofthechainTwodifferentsizesofrollerchain,showingconstruction.Therearetwotypesoflinksalternatinginthebushrollerchain.Thefirsttypeisinnerlinks,havingtwoinnerplatesheldtogetherbytwosleevesorbushingsuponwhichrotatetworollers.Innerlinksalternatewiththesecondtype,theouterlinks,consistingoftwoouterplatesheldtogetherbypinspassingthroughthebushingsoftheinnerlinks.The”bushingless”rollerchainissimilarinoperationthoughnotinconstructioninsteadofseparatebushingsorsleevesholdingtheinnerplatestogether,theplatehasa tubestampedintoitprotrudingfromtheholewhichservesthesamepurpose.Thishastheadvantageofremovingonestepinassemblyofthechain. Therollerchaindesignreducesfrictioncomparedtosimplerdesigns,resultinginhigherefficiencyandlesswear.Theoriginalpowertransmissionchainvarietieslackedrollersandbushings,withboththeinnerandouterplatesheldbypinswhichdirectlycontactedthesprocketteethhoweverthisconfigurationexhibitedextremelyrapidwearofboththesprocketteeth,andtheplateswheretheypivotedonthepins.Thisproblemwaspartiallysolvedbythedevelopmentofbushedchains,withthepinsholdingtheouterplatespassingthroughbushingsorsleevesconnectingtheinnerplates.Thisdistributedthewearovera greaterareahowevertheteethofthesprocketsstillworemorerapidlythanisdesirable,fromtheslidingfrictionagainstthebushings.TheadditionofrollerssurroundingthebushingsleevesofthecZheJiang dprovidedrollingcontactwiththeteethofthesprocketsresultinginexcellentresistancetowearofbothsprocketsandchainaswell.Thereisevenverylowfriction,aslongasthechainissufficientlylubricated.Continuous,clear,lubricationofrollerchainsisofprimaryimportanceforefficientoperationaswellascorrecttensioning. LubricationManydrivingchains(forexample,infactoryequipment,ordrivinga camshaftinsideaninternalcombustionengine)operateincleanenvironments,andthusthewearingsurfaces(thatis,thepinsandbushings)aresafefromprecipitationandairbornegrit,manyevenina sealedenvironmentsuchasanoilbath.Somerollerchainsaredesignedtohaveo-ringsbuiltintothespacebetweentheoutsidelinkplateandtheinsiderollerlinkplates.Chainmanufacturersbegantoincludethisfeaturein1971aftertheapplicationwasinventedbyJosephMontanowhileworkingforWhitneyChainofHartford,Connecticut.O-ringswereincludedasa waytoimprovelubricationtothelinksofpowertransmissionchains,a servicethatisvitallyimportanttoextendingtheirworkinglife.Theserubberfixturesforma barrierthatholdsfactoryappliedlubricatinggreaseinsidethepinandbushingwearareas.Additional,therubbero-ringspreventdirtandothercontaminantsfromenteringinsidethechainlinkages,wheresuchparticleswouldotherwisecausesignificantwear.[citationneeded] Therearealsomanychainsthathavetooperateindirtyconditions,andforsizeoroperationalreasonscannotbesealed.Examplesincludechainsonfarmequipment,bicycles,andchainsaws.Thesechainswillnecessarilyhaverelativelyhighratesofwear,particularlywhentheoperatorsarepreparedtoacceptmorefriction,lessefficiency,morenoiseandmorefrequentreplacementastheyneglectlubricationandadjustment. Manyoil-basedlubricantsattractdirtandotherparticles,eventuallyforminganabrasivepastethatwillcompoundwearonchains.Thisproblemcanbecircumventedbyuseofa “dry”PTFEspray,whichformsa solidfilmafterapplicationandrepelsbothparticlesandmoisture. MotorcyclechainlubricationChainsoperatingathighspeedscomparabletothoseonmotorcyclesshouldbeusedinconjunctionwithanoilbath.Formodernmotorcyclesthisisnotpossible,andmostmotorcyclechainsrununprotected.Thus,motorcyclechainstendtowearveryquicklyrelativetootherapplications.Theyaresubjecttoextremeforcesandareexposedtorain,grime,sandandroadsalt. Motorcyclechainsarepartofthedrivetraintotransmitthemotorpowertothebackwheel.Properlylubricatedchainscanreachanefficiencyof98%orgreaterinthetransmission.UnlubricatedchainswillsignificantlydecreaseperformanceandincreasecZheJiang dsprocketwear. Twotypesofaftermarketlubricantsareavailableformotorcyclechains:sprayonlubricantsandoildripfeedsystems. SpraylubricantsmaycontainwaxorPTFE.Whiletheselubricantsusetackadditivestostayonthechaintheycanalsoattractdirtandsandfromtheroadandovertimeproducea grindingpastethatacceleratescomponentwear.OildripfeedsystemscontinuouslylubricatethecZheJiang duselightoilthatdoesnotsticktothechain.Researchhasshownthatoildripfeedsystemsprovidethegreatestwearprotectionandgreatestpowersaving. Variantsindesign Layoutofa rollerchain:1.Outerplate,2.Innerplate,3.Pin,4.Bushing,5.RollerIfthechainisnotbeingusedfora highwearapplication(forinstanceifitisjusttransmittingmotionfroma hand-operatedlevertoa controlshaftona machine,ora slidingdooronanoven),thenoneofthesimplertypesofchainmaystillbeused.Conversely,whereextrastrengthbutthesmoothdriveofa smallerpitchisrequired,thechainmaybe”siamesed”insteadofjusttworowsofplatesontheoutersidesofthechain,theremaybethree(“duplex”),four(“triplex”),ormorerowsofplatesrunningparallel,withbushingsandrollersbetweeneachadjacentpair,andthesamenumberofrowsofteethrunninginparallelonthesprocketstomatch.Timingchainsonautomotiveengines,forexample,typicallyhavemultiplerowsofplatescalledstrands. Rollerchainismadeinseveralsizes,themostcommonAmericanNationalStandardsInstitute(ANSI)standardsbeing40,fifty,sixty,and80.Thefirstdigit(s)indicatethepitchofthechainineighthsofaninch,withthelastdigitbeing0 forstandardchain,1 forlightweightchain,and5 forbushedchainwithnorollers.Therefore,a chainwithhalf-inchpitchwouldbea #40whilea #160sprocketwouldhaveteethspaced2 inchesapart,and so on.Metricpitchesareexpressedinsixteenthsofaninchthusa metric#8chain(08B-1)wouldbeequivalenttoanANSI#forty.Mostrollerchainismadefromplaincarbonoralloysteel,butstainlesssteelisusedinfoodprocessingmachineryorotherplaceswherelubricationisa problem,andnylonorbrassareoccasionallyseenforthesamereason. Rollerchainisordinarilyhookedupusinga masterlink(alsoknownasa connectinglink),whichtypicallyhasonepinheldbya horseshoeclipratherthanfrictionfit,allowingittobeinsertedorremovedwithsimpletools.Chainwitha removablelinkorpinisalsoknownascotteredchain,whichallowsthelengthofthechaintobeadjusted.Halflinks(alsoknownasoffsets)areavailableandareusedtoincreasethelengthofthechainbya singleroller.Rivetedrollerchainhasthemasterlink(alsoknownasa connectinglink)”riveted”ormashedontheends.Thesepinsaremadetobedurableandarenotremovable. Use Anexampleoftwo’ghost’sprocketstensioninga triplexrollerchainsystemRollerchainsareusedinlow-tomid-speeddrivesataround600to800feetperminutehowever,athigherspeeds,around2,000to3,000feetperminute,V-beltsarenormallyusedduetowearandnoiseissues.Abicyclechainisa formofrollerchain.Bicyclechainsmayhavea masterlink,ormayrequirea chaintoolforremovalandinstallation.A similarbutlargerandthusstrongerchainisusedonmostmotorcyclesalthoughitissometimesreplacedbyeithera toothedbeltora shaftdrive,whichofferlowernoiselevelandfewermaintenancerequirements.Thegreatmajorityofautomobileenginesuserollerchainstodrivethecamshaft(s).Veryhighperformanceenginesoftenusegeardrive,andstartingintheearly1960stoothedbeltswereusedbysomemanufacturers.Chainsarealsousedinforkliftsusinghydraulicramsasa pulleytoraiseandlowerthecarriagehowever,thesechainsarenotconsideredrollerchains,butareclassifiedasliftorleafchains.Chainsawcuttingchainssuperficiallyresemblerollerchainsbutaremorecloselyrelatedtoleafchains.Theyaredrivenbyprojectingdrivelinkswhichalsoservetolocatethechainontothebar. SeaHarrierFA.2ZA195front(cold)vectorthrustnozzle- thenozzleisrotatedbya chaindrivefromanairmotorAperhapsunusualuseofa pairofmotorcyclechainsisintheHarrierJumpJet,wherea chaindrivefromanairmotorisusedtorotatethemovableenginenozzles,allowingthemtobepointeddownwardsforhoveringflight,ortotherearfornormalforwardflight,a systemknownasThrustvectoring. Put on Theeffectofwearona rollerchainistoincreasethepitch(spacingofthelinks),causingthechaintogrowlonger.Notethatthisisduetowearatthepivotingpinsandbushes,notfromactualstretchingofthemetal(asdoeshappentosomeflexiblesteelcomponentssuchasthehand-brakecableofa motorvehicle). Withmodernchainsitisunusualfora chain(otherthanthatofa bicycle)towearuntilitbreaks,sincea wornchainleadstotherapidonsetofwearontheteethofthesprockets,withultimatefailurebeingthelossofalltheteethonthesprocket.Thesprockets(inparticularthesmallerofthetwo)suffera grindingmotionthatputsa characteristichookshapeintothedrivenfaceoftheteeth.(Thiseffectismadeworsebya chainimproperlytensioned,butisunavoidablenomatterwhatcareistaken).Thewornteeth(andchain)nolongerprovidessmoothtransmissionofpowerandthismaybecomeevidentfromthenoise,thevibrationor(incarenginesusinga timingchain)thevariationinignitiontimingseenwitha timinglight.Bothsprocketsandchainshouldbereplacedinthesecases,sincea newchainonwornsprocketswillnotlastlong.However,inlessseverecasesitmaybepossibletosavethelargerofthetwosprockets,sinceitisalwaysthesmalleronethatsuffersthemostwear.Onlyinverylight-weightapplicationssuchasa bicycle,orinextremecasesofimpropertension,willthechainnormallyjumpoffthesprockets. Thelengtheningduetowearofa chainiscalculatedbythe M= thelengthofa numberoflinksmeasured S= thenumberoflinksmeasured P= Pitch Inindustry,itisusualtomonitorthemovementofthechaintensioner(whethermanualorautomatic)ortheexactlengthofa drivechain(oneruleofthumbistoreplacea rollerchainwhichhaselongated3%onanadjustabledriveor1.5%ona fixed-centerdrive).A simplermethod,particularlysuitableforthecycleormotorcycleuser,istoattempttopullthechainawayfromthelargerofthetwosprockets,whilstensuringthechainistaut.Anysignificantmovement(e.g.makingitpossibletoseethrougha gap)probablyindicatesa chainwornuptoandbeyondthelimit.Sprocketdamagewillresultiftheproblemisignored.Sprocketwearcancelsthiseffect,andmaymaskchainwear. Bicyclechainwear Thelightweightchainofa bicyclewithderailleurgearscansnap(orrather,comeapartattheside-plates,sinceitisnormalforthe”riveting”tofailfirst)becausethepinsinsidearenotcylindrical,theyarebarrel-shaped.Contactbetweenthepinandthebushingisnottheregularline,buta pointwhichallowsthechain’spinstoworkitswaythroughthebushing,andfinallytheroller,ultimatelycausingthechaintosnap.Thisformofconstructionisnecessarybecausethegear-changingactionofthisformoftransmissionrequiresthechaintobothbendsidewaysandtotwist,butthiscanoccurwiththeflexibilityofsucha narrowcZheJiang drelativelylargefreelengthsona bicycle. Chainfailureismuchlessofa problemonhub-gearedsystems(e.g.Bendix2-velocity,Sturmey-ArcherAW)sincetheparallelpinshavea muchbiggerwearingsurfaceincontactwiththebush.Thehub-gearsystemalsoallowscompleteenclosure,a greataidtolubricationandprotectionfromgrit. Chainstrength Themostcommonmeasureofrollerchain’sstrengthistensilestrength.Tensilestrengthrepresentshowmuchloada chaincanwithstandundera one-timeloadbeforebreaking.Justasimportantastensilestrengthisa chain’sfatiguestrength.Thecriticalfactorsina chain’sfatiguestrengthisthequalityofsteelusedtomanufacturethechain,theheattreatmentofthechaincomponents,thequalityofthepitchholefabricationofthelinkplates,andthetypeofshotplustheintensityofshotpeencoverageonthelinkplates.Otherfactorscanincludethethicknessofthelinkplatesandthedesign(contour)ofthelinkplates.Theruleofthumbforrollerchainoperatingona continuousdriveisforthechainloadtonotexceeda mere1/6or1/9ofthechain’stensilestrength,dependingonthetypeofmasterlinksused(press-fitvs.slip-match)[citationneeded].Rollerchainsoperatingona continuousdrivebeyondthesethresholdscanandtypicallydofailprematurelyvialinkplatefatiguefailure. ThestandardminimumultimatestrengthoftheANSI29.1steelchainis12,500x (pitch,ininches)two.X-ringandO-Ringchainsgreatlydecreasewearbymeansofinternallubricants,increasingchainlife.Theinternallubricationisinsertedbymeansofa vacuumwhenrivetingthechaintogether. Chainstandards Standardsorganizations(suchasANSIandISO)maintainstandardsfordesign,dimensions,andinterchangeabilityoftransmissionchains.Forexample,thefollowingTableshowsdatafromANSIstandardB29.1-2011(PrecisionPowerTransmissionRollerChains,Attachments,andSprockets)developedbytheAmericanSocietyofMechanicalEngineers(ASME).Seethereferences[8][9][10] foradditionalinformation. ASME/ANSIB29.1-2011RollerChainStandardSizesSizePitchMaximumRollerDiameterMinimumUltimateTensileStrengthMeasuringLoad25. Formnemonicpurposes,belowisanotherpresentationofkeydimensionsfromthesamestandard,expressedinfractionsofaninch(whichwaspartofthethinkingbehindthechoiceofpreferrednumbersintheANSIstandard): Notes:one.Thepitchisthedistancebetweenrollercenters.Thewidthisthedistancebetweenthelinkplates(i.e.slightlymorethantherollerwidthtoallowforclearance).two.Theright-handdigitofthestandarddenotes0 =normalchain,1 =lightweightchain,5 =rollerlessbushingchain.three.Theleft-handdigitdenotesthenumberofeighthsofaninchthatmakeupthepitch.4.An”H”followingthestandardnumberdenotesheavyweightchain.A hyphenatednumberfollowingthestandardnumberdenotesdouble-strand(2),triple-strand(3),andsoon.Thus60H-3denotesnumber60heavyweighttriple-strandchain. Atypicalbicyclechain(forderailleurgears)usesnarrow1⁄2-inch-pitchchain.Thewidthofthechainisvariable,anddoesnotaffecttheloadcapacity.Themoresprocketsattherearwheel(historically3-6,nowadays7-12sprockets),thenarrowerthechain.Chainsaresoldaccordingtothenumberofspeedstheyaredesignedtoworkwith,forexample,”10speedchain”.Hubgearorsinglespeedbicyclesuse1/2″x 1/8″chains,where1/8″referstothemaximumthicknessofa sprocketthatcanbeusedwiththechain. Typicallychainswithparallelshapedlinkshaveanevennumberoflinks,witheachnarrowlinkfollowedbya broadone.Chainsbuiltupwitha uniformtypeoflink,narrowatoneandbroadattheotherend,canbemadewithanoddnumberoflinks,whichcanbeanadvantagetoadapttoa specialchainwheel-distanceontheothersidesucha chaintendstobenotsostrong. RollerchainsmadeusingISOstandardaresometimescalledasisochains. SeealsoSelf-lubricatingchainReferences Asmuchas98%efficientunderidealconditions,accordingtoKidd,MattD.N.E.LochR.L.Reuben(1998).”BicycleChainEfficiency”.TheEngineeringofSportconference.Heriot-WattUniversity.Archivedfromtheoriginalon6 February2006.Retrieved16May2006. Inthe16thcentury,LeonardodaVincimadesketchesofwhatappearstobethefirststeelchain.Thesechainswereprobablydesignedtotransmitpulling,notwrapping,powerbecausetheyconsistonlyofplatesandpinsandhavemetalfittings.Even so,daVinci’ssketchdoesshowa rollerbearing.TsubakimotoChainCo.,ed.(1997).TheCompleteXihu (West Lake) Dis.toChain.KogyoChosakiPublishingCo.,Ltd.p.240.ISBN0-9658932–.p.211.Retrieved17May2006. “WhatisMicPol?”.Lubrication.Retrieved3 October2018. Chainsoperatingathighspeedscomparabletothoseonmotorcyclesshouldbeusedinconjunctionwithanoilbath,accordingto:Lubrecht,A.andDalmaz,G.,(eds.)TransientsProcessesinTribology,Proc30thLeeds-LyonSymposiumonTribology.30thLeeds-LyonSymposiumonTribology,2-5September2003,Lyon.TribologyandInterfaceEngineeringSeries(43).Elsevier,Amsterdam,pp.291-298. Oildripfeedprovidedthegreatestwearprotectionbetweenchainrollerandpin,Oildripfeedprovidedthegreatestpowersavingoverunlubricatedchainsandsprockets,accordingtoLee,P.M.andPriest,M.(2004)Aninnovationintegratedapproachtotestingmotorcycledrivechainlubricants.In:Lubrecht,A.andDalmaz,G.,(eds.)TransientsProcessesinTribology,Proc30thLeeds-LyonSymposiumonTribology.30thLeeds-LyonSymposiumonTribology,2-5September2003,Lyon.TribologyandInterfaceEngineeringSeries(forty three).Elsevier,Amsterdam,pp.291-298. ASMEB29.1-2011- PrecisionPowerTransmissionRollerChains,Attachments,andSprockets. TsubakimotoChainCo.,ed.(1997).”TransmissionChains”.TheCompleteXihu (West Lake) Dis.toChain.KogyoChosakiPublishingCo.,Ltd.p.240.ISBN0-9658932–.p.86.Retrieved30January2015. Green1996,pp.2337-2361 “ANSIG7StandardRollerChain- TsubakiEurope”.TsubakiEurope.TsubakimotoEuropeB.V.Retrieved18June2009.BibliographyOberg,ErikJones,FranklinD.Horton,HolbrookL.Ryffel,HenryH.(1996),Inexperienced,RobertE.McCauley,ChristopherJ.(eds.),Machinery’sHandbook(25thed.),NewYork:IndustrialPress,ISBN978–8311-2575-2,OCLC473691581.Externallinks WikimediaCommonshasmediarelatedtoRollerchains.TheCompleteXihu (West Lake) Dis.toChainGroups:ChaindrivesMechanicalpowertransmissionMechanicalpowercontrol WhyChooseUs1. ReliableQualityAssuranceSystemtwo. Cutting-EdgeComputer-ControlledCNCMachinesthree. BespokeSolutionsfromHighlyExperiencedSpecialists 4. CustomizationandOEMAvailableforSpecificApplication5. ExtensiveInventoryofSparePartsandAccessories6. Well-DevelopedWorldwideMarketingNetwork seven. EfficientAfter-SaleServiceSystem Diverse types of drive chains There are a lot of different […]
もっと読む↗
