1、ASME B29.27-2002SINGLE-PITCH ANDDOUBLE-PITCH HOLLOWPIN CONVEYOR CHAINSAND ATTACHMENTSAN AMERICAN NATIONAL STANDARDREAFFIRMED 2016Intentionally left blank AN AMERICAN NATIONAL STANDARDSINGLE-PITCH ANDDOUBLE-PITCH HOLLOWPIN CONVEYOR CHAINSAND ATTACHMENTSASME B29.27-2002DateofIssuance:August7,2002ThisS
2、tandardwillberevisedwhentheSocietyapprovestheissuanceofanewedition.TherewillbenoaddendaissuedtothisEdition.ASMEwillissuewrittenrepliestoinquiriesconcerninginterpretationoftechnicalaspectsofthisStandard.ASMEistheregisteredtrademarkofTheAmericanSocietyofMechanicalEngineers.Thiscodeorstandardwasdevelop
3、edunderproceduresaccreditedasmeetingthecriteriaforAmericanNationalStandards.TheStandardsCommitteethatapprovedthecodeorstandardwasbalancedtoassurethatindividualsfromcompetentandconcernedinterestshavehadanopportunitytoparticipate.Theproposedcodeorstandardwasmadeavailableforpublicreviewandcommentwhichp
4、rovidesanopportunityforadditionalpublicinputfromindustry,academia,regulatoryagencies,andthepublic-at-large.ASMEdoesnot“approve,”“rate,”or“endorse”anyitem,construction,proprietarydevice,oractivity.ASMEdoesnottakeanypositionwithrespecttothevalidityofanypatentrightsassertedinconnectionwithanyitemsmenti
5、onedinthisdocument,anddoesnotundertaketoinsureanyoneutilizingastandardagainstliabilityforinfringementofanyapplicableletterspatent,norassumeanysuchliability.Usersofacodeorstandardareexpresslyadvisedthatdeterminationofthevalidityofanysuchrights,andtheriskofinfringementofsuchrights,isentirelytheirownre
6、sponsibility.Participationbyfederalagencyrepresentative(s)orperson(s)affiliatedwithindustryisnottobeinterpretedasgovernmentorindustryendorsementofthiscodeorstandard.ASMEacceptsresponsibilityforonlythoseinterpretationsofthisdocumentissuedinaccordancewithestablishedtheASMEproceduresandpolicies,whichpr
7、ecludestheissuanceofinterpretationsbyindividuals.Nopartofthisdocumentmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutthepriorwrittenpermissionofthepublisher.TheAmericanSocietyofMechanicalEngineersThreeParkAvenue,NewYork,NY10016-5990Copyright2002byTHEAMERICANSOCIETYOFMECHANIC
8、ALENGINEERSAllRightsReservedPrintedinU.S.A.CONTENTSForeword ivCommittee Roster vCorrespondence With B29 Committee vi1 Scope 12 HollowPinChains . 13 Sprockets 3Figures1 Single-Pitch Connecting Link . 12 Double-Pitch Connecting Link 13 Double-Pitch Hollow Pin Chain With Small Rollers . 24 Double-Pitch
9、 Hollow Pin Chain With Large Rollers . 25 Single-Pitch Hollow Pin Chain . 26 Single-Pitch Pin Link 37 Double-Pitch Pin Link . 38 Double-Pitch Roller Link With Large Rollers 39 Double-Pitch Roller Link With Small Rollers 310 Single-Pitch Roller Link 311 General Chain Dimensions . 5Table1 General Chai
10、n Dimensions, Limiting Dimensions for Interchangeability,Measuring Loads, and Ultimate Tensile Strengths 4iiiFOREWORDFor many years roller chain manufacturers furnished substantial volumes of a limitedseries of hollow pin chains for specific conveying applications. Such chains usually arerollerless
11、bushing chains having cylindrical pins. The pin bores are essentially the same asthe bushing bores for equivalent pitch chains in ASME B29.1 or ASME B29.4. The bushing,or roller, diameters and width are such that the single-pitch chains operate on ASME B29.1sprockets and the double-pitch chains oper
12、ate on ASME B29.4 sprockets. These chains areoften used in parallel strands with detachable cross-rods fitted through the pin bores of thetwo parallel strands of chain.These chains sometimes are assembled with modified design attachment pin link platesor roller link plates to adapt the chains to mor
13、e versatile use in conveying operations.Over the years, hollow pin chains became widely used and many manufacturers offeredthem. About 1990, it was suggested by the ASME B29 Committee that a standard forthese chains was needed. In 1995, the Roller Chain Technical Committee of the AmericanChain Assoc
14、iation established a subcommittee to develop such a standard.Customary inch-pound units were used in tabulating dimensional information in thisstandard. Additionally, metric conversions of those units, in accordance with ASME GuideSI-1, ASME Orientation and Guide for Use of SI (Metric) Units, are al
15、so provided.This Standard was approved by the American National Standards Institute on March20, 2002.ivASMEB29COMMITTEEChains,Attachments,andSprocketsforPowerTransmissionandConveying(ThefollowingistherosteroftheCommitteeatthetimeofapprovalofthisStandard.)OFFICERSJ.L.Wright, ChairC.G.Springman,ViceCh
16、airM.Lo,SecretaryCOMMITTEEPERSONNELW.C.Hall, RamseyProductsCorp.L.E.Hampel,Allied-LockeIndustries,Inc.A.M.McCarty,EmersonPowerTransmissionD.Moore,JeffreyChainCo.R.W.Neuhengen, Drives,Inc.V.D.Petershack,HitachiMaxco,Ltd.V.E.Skipper,Alternate,HitachiMaxco,Ltd.R.A.Reinfried,ConveyorEquipmentManufacture
17、rsAssociationS.Rhoad,WebsterIndustries,Inc.R.J.Rothchild,U.S.Tsubaki,Inc.K.J.Smith,Drives,Inc.vCORRESPONDENCEWITHB29COMMITTEEGeneral. ASME standards are developed and maintained with the intent to represent theconsensus of concerned interests. As such, users of this Standard may interact with theCom
18、mittee by requesting interpretations, proposing revisions, and attending Committeemeetings. Correspondence should be addressed to:Secretary, B29 Main CommitteeThe American Society of Mechanical EngineersThree Park AvenueNew York, NY 10016-5990Proposing Revisions. Revisions are made periodically to t
19、he Standard to incorporatechanges that appear necessary or desirable, as demonstrated by the experience gained fromthe application of the Standard. Approved revisions will be published periodically.The Committee welcomes proposals for revisions to this Standard. Such proposals shouldbe as specific a
20、s possible, citing the paragraph number(s), the proposed wording, and adetailed description of the reasons for the proposal, including any pertinent documentation.Interpretations. Upon request, the B29 Committee will render an interpretation of anyrequirement of the Standard. Interpretations can onl
21、y be rendered in response to a writtenrequest sent to the Secretary of the B29 Main Committee.The request for interpretation should be clear and unambiguous. It is further recommendedthat the inquirer submit his/her request in the following format:Subject: Cite the applicable paragraph number(s) and
22、 the topic of the inquiry.Edition: Cite the applicable edition of the Standard for which the interpretationis being requested.Question: Phrase the question as a request for an interpretation of a specificrequirement suitable for general understanding and use, not as a requestfor an approval of a pro
23、prietary design or situation. The inquirer mayalso include any plans or drawings, which are necessary to explainthe question; however, they should not contain proprietary names orinformation.Requests that are not in this format will be rewritten in this format by the Committeeprior to being answered
24、, which may inadvertently change the intent of the original request.ASME procedures provide for reconsideration of any interpretation when or if additionalinformation that might affect an interpretation is available. Further, persons aggrieved byan interpretation may appeal to the cognizant ASME Com
25、mittee or Subcommittee. ASMEdoes not “approve,”“certify,”“rate,” or “endorse” any item, construction, proprietary device,or activity.Attending Committee Meetings. The B29 Main Committee regularly holds meetings, whichare open to the public. Persons wishing to attend any meeting should contact the Se
26、cretaryof the B29 Main Committee.viASMEB29.27-2002SINGLE-PITCHANDDOUBLE-PITCHHOLLOWPINCONVEYORCHAINSANDATTACHMENTS1 SCOPEThis standard covers the dimensional limits requiredfor chain interchangeability on sprockets. It does notprovide for interconnectability of chains or individuallinks from differe
27、nt manufacturers.2 HOLLOWPINCHAINS2.1 Definition andNomenclatureconnecting link: an outside link consisting of a pinlink plate, E, two hollow pins, G-G, a detachable pinlink plate, D, and two retainers, H-H (see Figs. 1 and 2).hollow pin chain, double-pitch: a series of alternatelyassembled roller l
28、inks and pin links in which the hollowpins articulate inside the bushings. The pitch of thelink plates is twice that of the link plates of the baseseries chain. Pin link plates and roller link plates haveidentical straight-edged contours. Chains may have largerollers that are intended for use when t
29、he conveyedload is carried by the rollers (see Figs. 3 and 4).hollow pin chain, single-pitch: a series of alternatelyassembled roller links and pin links in which the hollowpins articulate inside the bushings (see Fig. 5).pin link: an outside link consisting of two pin linkplates, E-E, and two hollo
30、w pins, F-F (see Figs. 6 and 7).roller link, double-pitch, large roller series: an insidelink consisting of two roller link plates, A-A, twobushings, B-B, and two rollers of the large roller series,CL-CL(see Fig. 8).GGEHDHFIG.1 SINGLE-PITCHCONNECTINGLINK1roller link, double-pitch, small roller serie
31、s: an insidelink consisting of two roller link plates, A-A, and twobushings, B-B (see Fig. 9).roller link, single-pitch: an inside link consisting oftwo roller link plates, A-A, and two bushings, B-B (seeFig. 10).2.2 GeneralProportions2.2.1 Single-Pitch(a) The roller diameter approximately equals0.6
32、25H11547P (Pppitch).(b) The chain width is defined as the distance be-tween roller link plates and approximately equals0.625H11547P.(c) The bore of the hollow pin approximately equals0.312H11547P.(d) The thickness of link plates approximately equals0.125H11547P.(e) The maximum height of pin and roll
33、er link platesequals 0.95H11547P.2.2.2 Double-Pitch(a) The roller diameter for the small roller seriesapproximately equals 0.312H11547P and for the large rollerseries approximately equals 0.625H11547P.(b) The chain width is defined as the distance be-tween roller link plates and approximately equals
34、0.312H11547P.(c) The bore of the hollow pin approximately equals0.156H11547P.GGEDH HFIG.2 DOUBLE-PITCHCONNECTINGLINKSINGLE-PITCHANDDOUBLE-PITCHHOLLOWPINCONVEYORCHAINSANDATTACHMENTSASMEB29.27-2002FIG.3 DOUBLE-PITCHHOLLOWPINCHAINWITHSMALLROLLERSFIG.4 DOUBLE-PITCHHOLLOWPINCHAINWITHLARGEROLLERSFIG.5 SIN
35、GLE-PITCHHOLLOWPINCHAIN(d) The thickness of link plates approximately equals0.062H11547P.(e) The maximum height of pin and roller link platesequals 0.475H11547P.2.3 NumberingSystemSingle-pitch hollow pin chains are identified by thesame basic chain number as in ASME B29.1 followedby the suffix HP.Do
36、uble-pitch hollow pin chains are identified by thesame basic chain number as in ASME B29.4 followedby the suffix HP.2.4 MinimumUltimateTensileStrengthSingle strand hollow pin chains, conforming to thisstandard, shall have a minimum ultimate tensile strength,or breaking strength, equal to or exceedin
37、g the valueslisted in Table 1.The minimum ultimate tensile strength (M.U.T.S.)for chains covered by this standard is the minimumforce at which an unused, undamaged chain could failwhen subjected to a single tensile loading test.(a) WARNING: The minimum ultimate tensilestrength is NOT a “working load
38、.” The M.U.T.S.greatly exceeds the maximum force that may be appliedto the chain.(b) Test Procedure. A tensile force is slowly applied,in uniaxial direction, to the ends of the chain sample.2(c) The tensile test is a destructive test. Even thoughthe chain may not visibly fail when subjected to themi
39、nimum ultimate tensile force, it will have been dam-aged and will be unfit for service.2.5 ChainLengthAccuracy2.5.1 ChainLengthTolerance. An unused, un-damaged chain, with standard measuring load applied,shall not be underlength. An unused, undamaged chain,with standard measuring load applied, shall
40、 not exceedthe overlength shown in the following tabulation.Overlength LimitBase ChainNumbers in./ft mm/m40, C2040, C2042 +0.038 3.1750, C2050, C2052 +0.036 3.0060, C2060, C2062 +0.034 2.8380, C2080, C2082 +0.032 2.672.5.2 StandardMeasuringLoadandLength.Measuring load is the load that shall be appli
41、ed to thechain while it is measured for length. Measuring loadis equal to 1% of the M.U.T.S., with a minimum of31 lb (138 N).Chain length measurements shall be taken over alength of at least 12 in. (300 mm).SINGLE-PITCHANDDOUBLE-PITCHHOLLOWPINCONVEYORCHAINSANDATTACHMENTS ASMEB29.27-2002FFEEFIG.6 SIN
42、GLE-PITCHPINLINKFFEEFIG.7 DOUBLE-PITCHPINLINKBBAAFIG.9 DOUBLE-PITCHROLLERLINKWITHSMALLROLLERS2.5.3 ChainLengthMatchingforParallelOp-eration. Chains intended to operate in parallel maybe matched to closer tolerances.2.6 ChainDimensionsSee Fig. 11 and Table 1.2.7 AttachmentLinkPlatesforHollowPinChains
43、Attachment link plates and limiting dimensions forattachment link plates for single-pitch hollow pin chainsare listed in ASME B29.1.3CLCLAABBFIG.8 DOUBLE-PITCHROLLERLINKWITHLARGEROLLERSBBAAFIG.10 SINGLE-PITCHROLLERLINKAttachment link plates and limiting dimensions forattachment link plates for doubl
44、e-pitch hollow pin chainsare listed in ASME B29.4.Extended pins normally are not offered for hollowpin chains.3 SPROCKETSSprocket types, tooth forms, and tooth section profilesare as shown in ASME B29.1.For single-pitch hollow pin chains, sprocket diametersare as listed in ASME B29.1.For double-pitc
45、h hollow pin chains, sprocket diame-ters are as listed in ASME B29.4.SINGLE-PITCHANDDOUBLE-PITCHHOLLOWPINCONVEYORCHAINSANDATTACHMENTSASMEB29.27-2002TABLE1GENERALCHAINDIMENSIONS,LIMITINGDIMENSIONSFORINTERCHANGEABILITY,MEASURINGLOADS,ANDULTIMATETENSILESTRENGTHSDimensions,in.(mm)C2040HPC2050HPC2060HPC2
46、080HP40HP50HP60HP80HPC2042HPC2052HPC2062HPC2082HPStandardChainNumberin.(mm)in.(mm)in.(mm)in.(mm)in.(mm)in.(mm)in.(mm)in.(mm)ChainPitch,P0.500(12.70)0.625(15.875)0.750(19.05)1.000(25.40)1.000(25.40)1.250(31.75)1.500(38.10)2.000(50.80)RollerDiameterSmall,DS,Max.0.312(7.92)0.400(10.16)0.469(11.91)0.625
47、(15.88)0.312(7.92)0.400(10.16)0.469(11.91)0.625(15.88)Large,DL,Max.0.625(15.88)0.750(19.05)0.875(22.23)1.125(28.58)WidthBetweenRollerLinkPlates,W,Min.0.309(7.85)0.370(9.40)0.495(12.57)0.620(15.75)0.309(7.85)0.370(9.40)0.495(12.57)0.620(15.75)RollerLinkWidth,Max.0.440(11.18)0.545(13.84)0.699(17.75)0.
48、890(22.61)0.440(11.18)0.545(13.84)0.699(17.75)0.890(22.61)DistanceBetweenPinLinkPlates,Min.0.442(11.23)0.547(13.89)0.701(17.81)0.892(22.66)0.442(11.23)0.547(13.89)0.701(17.81)0.892(22.66)HollowPinBoreDiameter,DbMin.0.1567(4.00)0.2004(5.12)0.2346(5.98)0.3126(7.96)0.1567(4.00)0.2004(5.12)0.2346(5.98)0
49、.3126(7.96)MeasuringLoad,lb(N)31(138)31(138)51(227)92(409)31(138)31(138)51(227)92(409)Min.UltimateTensileStrength,lb(N)1,750(7784)2,500(11120)5,100(22686)9,200(40924)1,750(7784)2,500(11120)5,100(22686)9,200(40924)WidthOverRegularPin,B,Max.0.66(16.76)0.82(20.83)1.02(25.91)1.30(33.02)0.66(16.76)0.82(20.83)1.02(25.91)1.30(33.02)AddtoBforConn.Pin,Max.0.05(1.27)0.06(1.52)0.06(1.52)0.06(1.52)0.05(1.27)0.06(1.52)0.06(1.52)0.06(1.52)4SINGLE-PITCHANDDOUBLE-PITCHHOLLOWPINCONVEYORCHAINSANDATTACHMENTS ASMEB29.27-2002DLDbDsWPPPPBFIG.11 GENERALCHAINDIMENSIONS5Intentionally left blan
