1、AN AMERICAN NATIONAL STANDARD ASME B29.300-2015Revision of ASME B29.300-1998 (R2008)Agricultural, Detachable, and Pintle Chains, Attachments, and SprocketsASME B29.300-2015Revision of ASME B29.300-1998 (R2008)Agricultural,Detachable, and PintleChains, Attachments,and SprocketsAN AMERICAN NATIONAL ST
2、ANDARDTwo Park Avenue New York, NY 10016 USADate of Issuance: December 11, 2015This Standard will be revised when the Society approves the issuance of a new edition.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard. Interpretations are published
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12、ANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword ivCommittee Roster . viCorrespondence With the B29 Committee viiASME B29.6 Steel Detachable Link Chains, Attachments, and Sprockets 1ASME B29.19 Agricultural Roller Chains, Attachments, and Sprockets . 20ASME B29.25 Open Barrel Ste
13、el Pintle-Type Conveyor Chains, Attachments,and Sprockets 27iiiFOREWORDOnAugust2,1998,theB29Standardscommitteeagreedvialetterballottoconsolidateandrevisethefollowingthreechainstandards:ASMEB29.6,SteelDetachableLinkChains,Attachments,andSprockets; ASME B29.19, Agricultural Roller Chains, Attachments,
14、 and Sprockets; andASME B29.25, Open Barrel Steel Pintle-Type Conveyor Chains, Attachments, and Sprockets.The 1998 revisions of B29.6, B29.19, and B29.25 were designed to integrate the agricultural-type chains found in each of these three Standards.The 2015 revision of B29.300 includes new chains th
15、at are now common in the agriculturalindustry.Suggestions for improvement of these three Standards are welcome. They should be sent toThe American Society of Mechanical Engineers; Secretary, B29 Standards Committee;Two Park Avenue; New York, NY 10016.ASME B29.300 was approved as an American Standard
16、 on November 23, 2015.B29.6 Steel Detachable link Chains, Attachments, and SprocketsDetachable link power transmission chains have been used almost exclusively by agriculturalimplement manufacturers for power transmission and conveyors on manure spreaders, cornpickers, planters, hay rakes, potato di
17、ggers, elevators, and many other types of machines.The first steel detachable link chain was manufactured in 1897. This steel chain is made fromspecial analysis steel strip, and is heat treated after forming to withstand wear and providestrength and toughness.Early in 1950, agricultural equipment ma
18、nufacturers realized the need for a standard on steeldetachable link chain. In May 1951, a subcommittee of ASA Sectional Committee B29 wasappointed with members from the agricultural implement industry and the steel detachable linkchain industry to develop a standard for steel detachable link chains
19、.Duringthe1960revision,certainsizesofchainsandattachmentsweredeletedfromtheStandardwiththeintentofeliminatingthoseoflowpopularitythatwerealsocloselysimilartootherexistingsizes, thereby strengthening the Standard. In addition, several popular chains, attachments, andcouplers were added. Some attachme
20、nt designs were slightly revised. The coupler and couplerpin designs were revised to the currently more popular style, which allows any link to be usedeither right-handed or left-handed.This Standard establishes, in the main, only those dimensions that will provide for interchange-ability of the cha
21、ins in use without restricting the chain manufacturers in their overall design.The 1983 revision included the sprocket dimension controlling the surfaces that must properlyengage or clear the chain. The 1994 edition updated the Standard to the current ANSI standardsformat and symbols covering chains
22、. Numbers 45 and 67 were deleted from the Standard sincethey are no longer manufactured. Thedefinition of Minimum Ultimate Tensile Strength (M.U.T.S.)was also updated.In the 1998 edition, the symbols and sprocket information sections were revised to provideconsistency throughout the consolidated B29
23、.300 Standard.B29.19 Agricultural Roller Chains, Attachments, and SprocketsAgricultural replacement roller chains, introduced around 1956, provide implement engineerswith an upgrade from cast or steel detachable chains. These chains offer increased strength anddurability, and can be used with the sa
24、me sprockets.The agricultural replacement roller chains are available in both drive series (A550 and A620)and conveyor series (CA550 and CA620). They have replaced No. 55 and No. 62 detachable chainsin many applications and have found use in light-duty industrial conveyors.TheStandardestablishesesse
25、ntiallyonlythosedimensionsthatwillprovideforinterchangeabil-ity of the chains in use without restricting the chain manufacturers in their overall designs.ivThe B29 Committee agrees that the CA550 and CA620 chains may be used on No. 55 andNo. 62 detachable chain sprocket, respectively; however, the s
26、procket data included in thisStandard is for sprockets designed specifically for CA550 and CA620 chains. The difference insprocket design is necessary because of the difference in roller diameters.The1993revisionincludedupdatingtothecurrentANSIstandardsformatandsymbolscoveringchains and sprockets. M
27、inimum Ultimate Tensile Strength (M.U.T.S.) was redefined.The 1996 revision changed the name of the Standardfrom “A and CA550 and 620 Roller Chains,Attachments, and Sprockets” to “Agricultural Roller Chains. Attachments, and Sprockets.” Also,two new chains for both drive series (A555 and A557) and c
28、onveyor series (CA555 and CA57),as well as several associated attachments, were added to the Standard.In the 1998 edition, the sprocket tooth form was modified to be identical with the form usedin the other two chains.B29.25 Open Barrel Steel Pintle-Type Conveyor Chains, Attachments, and SprocketsTh
29、e open barrel steel pintle chain was originally developed in 1962 for the agricultural imple-ment industry. The original sizes were developed to run on the same sprockets as their detachablechain counterparts of ANSI B29.6. In later years, sizes were developed to accommodate industrialapplications a
30、s well.The steel pintle chain is primarily used as a conveyor chain and, in limited use, as a powertransmission chain. Typical conveyor speeds arc under 300 ft/min. Consult manufacturers fordetails.The 1994 revision incorporated a restatement of the definition of Minimum Ultimate TensileStrength (M.
31、U.T.S.), and an addition of footnotes in Tables 3 and 4 regarding hole sizes in certainattachments.In the 1998 edition, Tables 1 and 2 were combined for simplicity, and the sprocket tooth formwas modified to be identical with the form used for the other two chains.In this edition, two new pintle cha
32、ins (88C and 308C) were added to the standard.vASME B29 COMMITTEEChains, Attachments, and Sprocketsfor Power Transmission and Conveying(The following is the roster of the committee at the time of approval of this Standard.)STANDARDS COMMITTEE OFFICERSC. G. Springman, ChairA. J. Binford, Vice ChairR.
33、 Richmond, SecretarySTANDARDS COMMITTEE PERSONNELM. A. Bergel, EBC, A Division of BDI USAA. J. Binford, IWIS Drive SystemsR. V. Dickey, Hitachi Maxco, Ltd.D. W. Egbert, Hitachi Maxco, Ltd.D. G. Fannin, Emerson Power TransmissionG. A. Hansen, Alternate, Emerson Power TransmissionW. C. Hall, Ramsey Pr
34、oducts Corp.D. B. Holcomb, Alternate, Ramsey Products Corp.C. R. Langner, Timken Drives LLCviM. Manickam, Webster Industries, Inc.S. Rhoad, Alternate, Webster Industries, Inc.E. Pawlicki, Timken Drives LLCR. A. Reinfried, Conveyor Equipment Manufacturers AssociationR. Richmond, The American Society
35、of Mechanical EngineersK. J. Smith, Ken Smith however, they shouldnot contain proprietary names or information.RequeststhatarenotinthisformatmayberewrittenintheappropriateformatbytheCommitteeprior to being answered, which may inadvertently change the intent of the original request.ASME procedures pr
36、ovide for reconsideration of any interpretation when or if additionalinformation that might affect an interpretation is available. Further, persons aggrieved by aninterpretation may appeal to the cognizant ASME Committee or Subcommittee. ASME does not“approve,” “certify,” “rate,” or “endorse” any it
37、em, construction, proprietary device, or activity.Attending Committee Meetings. The B29 Standards Committee regularly holds meetingsand/or telephone conferences that are open to the public. Persons wishing to attend any meetingand/ortelephoneconferenceshouldcontacttheSecretaryoftheB29StandardsCommit
38、tee.FutureCommittee meeting dates and locations can be found on the Committee Page atgo.asme.org/B29committee.viiINTENTIONALLY LEFT BLANKviiiASME B29.300-2015 (B29.6)ASME B29.61 Definitions 22 References 23 General Chain Proportions and Designations 24 Attachments 25 Sprockets. 2Figures1 Steel Detac
39、hable Link Chain 32 Link . 33 Sprocket Tooth Form . 4Tables1 Plain Link . 52 A1 Attachment 73 A2 Attachment 84 C1 Attachment . 95 C15 Attachment . 106 G27 Attachment . 117 HB4 Attachment . 128 K1 Attachment . 139 SH Attachment 1410 SD Attachment 1511 AS Attachment 1612 Coupler Link 1713 Coupler Pin
40、. 1814 Sprockets Maximum Eccentricity and Face Runout at Root Diameter . 1915 Sprocket Factors . 191ASME B29.300-2015 (B29.6)STEEL DETACHABLE LINK CHAINS, ATTACHMENTS,AND SPROCKETS1 DEFINITIONSlink: a one-piece steel link consisting of end bar A,hook B, and two sidebars C-C (see Fig. 2 of B29.6).mea
41、suring load: the load under which a dry or lightlylubricated chain should be measured for length.steel detachable link chain: a series of successively assem-bled steel links in which the end bars articulate insidethe hook. The chain is detached by flexing it and drivingthe end bar out of the adjoini
42、ng hook (see Fig. 1 ofB29.6).2 REFERENCESThe following is a list of publications referenced inthis Standard:Chains for Power Transmission and Material HandlingPublisher: American Chain Association (ACA),6724 Lone Oak Boulevard. Naples, FL 34109(www.americanchainassn.org)3 GENERAL CHAIN PROPORTIONS A
43、NDDESIGNATIONS3.1 Minimum Ultimate Tensile StrengthThe Minimum Ultimate Tensile Strength (M.U.T.S.)for chain covered by this Standard is the minimum forceat which an unused, undamaged chain could fail whensubjected to a single tensile loading test.WARNING: The Minimum Ultimate Tensile Strength is NO
44、Ta “working load.” The M.U.T.S. greatly exceeds the maximumforce that may be safely applied to the chain.(a) Test Procedure. A tensile force is slowly applied, ina uniaxial direction, to the ends of the chain sample.(b) The tensile test is a destructive test. Even thoughthe chain may not visibly fai
45、l when subjected to theM.U.T.S., it will have been damaged and will be unfitfor service.CAUTION: This load is beyond the yield strength of the chainand would render the chain unsuitable for application.(c) For application guidance, consult the manufactur-ers catalogs or the American Chain Associatio
46、ns hand-book, Chains for Power Transmission and MaterialHandling.24 ATTACHMENTSSee Tables l through 11 of B29.6 for tolerances anddimensions for the following attachments: plain link,A1, A2, AS, C1, C15, G27, HB4, K1, SD, and SH.See Table 12 of B29.6 for coupler link information andTable 13 of B29.6
47、 for coupler pin information.5 SPROCKETS5.1 General InformationSprockets for use with steel detachable chains are usu-ally made of cast or wrought ferrous material. Wearresistance is frequently designed into the material of thetooth faces. Sprocket bodies are of many configurations(e.g., plate, arm,
48、 web, flat, or dished). When hubs con-taining the sprocket mounting bore are employed, theymay project from either side or from both sides of thesprocket body.This Standard covers only the dimensions controllingthe surfaces that must properly engage or clear the chain.Dimensions are given in a decim
49、al inch system. Themetric dimensions given are recommended conversionsfrom the decimal inch system. In some cases the conver-sion is not exact; the decimal inch system is thereforeto be taken as the base control dimension.Sprockets with standard tooth forms are capable oftransmitting chain loads in systems operating under awide variety of conditions such as the followingcombination:(a) maximum peak tension in chain as great as 0.20of the ultimate breaking strength of the chain;(b) slack strand tensions as small as 0.25% of theworking tension in the chain;(c) friction betwee
