1、ASME B29.300-1998AGRICULTURAL,DETACHABLE, AND PINTLECHAINS, ATTACHMENTS,AND SPROCKETSIncorporating ASME B29.6, B29.19, and B29.25AN AMERICAN NATIONAL STANDARD2%! ASME B29.19, Agricultural Roller Chains, Attachments, andSprockets; and ASME B29.25, Open Barrel Steel Pintle-Type Conveyor Chains, Attach
2、ments,and Sprockets. The new Standard was designated ASME B29.300, and entitled Agricultural,Detachable, and Pintle Chains, Attachments, and Sprockets. The new Standard has beenassigned to Subcommittee 4 Agricultural, Detachable, and Pintle Chains.The 1998 revisions of B29.6, B29.19, and B29.25 have
3、 been designed to integrate theagricultural-type chains found in each of these three Standards.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 c
4、onveyors on manure spreaders, cornpickers, planters, hay rakes, potato diggers, elevators, and many other types of machines.The first steel detachable link chain was manufactured in 1897. This steel chain is madefrom special analysis steel strip, and is heat treated after forming to withstand wear a
5、ndprovide strength and toughness.Early in 1950, agricultural equipment manufacturers realized the need for a standard onsteel detachable link chains. In May 1951, a subcommittee of ASA Sectional CommitteeB29 was appointed with members from the agricultural implement industry and the steeldetachable
6、link chain industry to develop a standard for steel detachable link chains.During the 1960 revision, certain sizes of chains and attachments were deleted from theStandard with the intent of eliminating those of low popularity that were also closely similarto other existing sizes, thereby strengtheni
7、ng the Standard. In addition, several popularchains, attachments, and couplers were added. Some attachment designs were slightly revised.The coupler and coupler pin designs were revised to the currently more popular style,which allows any link to be used either right-handed or left-handed.This Stand
8、ard establishes, in the main, only those dimensions that will provide forinterchangeability of the chains in use without restricting the chain manufacturers in theiroverall design. The 1983 revision included the sprocket dimension controlling the surfacesthat must properly engage or clear the chain.
9、 The 1994 edition updated the Standard tothe current ANSI standards format and symbols covering chains. Number 45 and No. 67were deleted from the Standard since they are no longer manufactured. The definition ofMinimum Ultimate Tensile Strength (M.U.T.S.) was also updated.In this edition, the symbol
10、s and sprocket information sections were revised to provideconsistency throughout the consolidated B29.300 Standard.B29.19 Agricultural Roller Chains, Attachments, and SprocketsAgricultural replacement roller chains, introduced around 1956, provide implement engineerswith an upgrade from cast or ste
11、el detachable chains. These chains offer increased strengthand durability, and can be used with the same sprockets.iiiThe agricultural replacement roller chains are available in both drive series (A550 andA620) and conveyor series (CA550 and CA620). They have replaced No. 55 and No. 62detachable cha
12、ins in many applications and have found use in light-duty industrial conveyors.The Standard establishes essentially only those dimensions that will provide for interchange-ability of the chains in use without restricting the chain manufacturers in their overalldesigns.The B29 Committee agrees that t
13、he CA550 and CA620 chains may be used on No. 55and No. 62 detachable chain sprockets, respectively; however, the sprocket data includedin this Standard is for sprockets designed specifically for CA550 and CA620 chains. Thedifference in sprocket design is necessary because of the difference in roller
14、 diameters.The 1993 revision included updating to the current ANSI standards format and symbolscovering chains and sprockets. Minimum Ultimate Tensile Strength (M.U.T.S.) was redefined.The 1996 revision changed the name of the Standard from “A and CA550 and 620Roller Chains, Attachments, and Sprocke
15、ts” to “Agricultural Roller Chains, Attachments,and Sprockets.” Also, two new chains for both drive series (A555 and A557) and conveyorseries (CA555 and CA557), as well as several associated attachments, were added to theStandard.In this edition, the sprocket tooth form was modified to be identical
16、with the form usedin the other two chains.B29.25 Open Barrel Steel Pintle-Type Conveyor Chains, Attachments,and SprocketsThe open barrel steel pintle chain was originally developed in 1962 for the agriculturalimplement industry. The original sizes were developed to run on the same sprockets astheir
17、detachable chain counterparts of ANSI B29.6. In later years, sizes were developed toaccomodate industrial applications as well.The steel pintle chain is primarily used as a conveyor chain and, in limited use, as a powertransmission chain. Typical conveyor speeds are under 300 ft/min. Consult manufac
18、turers fordetails.The 1994 revision incorporated a restatement of the definition of Minimum UltimateTensile Strength (M.U.T.S.), and an addition of footnotes in Tables 3 and 4 regarding holesizes in certain attachments.In this edition, Tables 1 and 2 were combined for simplicity, and the sprocket to
19、othform was modified to be identical with the form used for the other two chains.Suggestions for improvement of these three Standards are welcome. They should be sentto The American Society of Mechanical Engineers; Secretary, B29 Main Committee; ThreePark Avenue; New York, NY 10016-5990.ASME B29.6,
20、ASME B29.19, and ASME B29.25 were approved as American NationalStandards on November 30, 1998.ivASME COMMITTEE B29Chains, Attachments, and Sprocketsfor Power Transmission and Conveying(The following is the roster of the Committee at the time of approval of this Standard.)OFFICERSJ. L. Wright, ChairR
21、. L. Crane, SecretaryCOMMITTEE PERSONNELR. L. Crane, The American Society of Mechanical EngineersL. E. Hampel, Allied-Locke Industries, Inc., Dixon, IllinoisA. M. McCarty, Emerson Power Transmission, Ithaca, New YorkD. Moore, Jeffrey Chain Co., Morristown, TennesseeV. D. Petershack, Hitachi Maxco Lt
22、d., Oconomowoc, WisconsinV. E. Skipper, Alternate, Hitachi Maxco Ltd., Keenesaw, GeorgiaR. A. Reinfried, Conveyor Equipment Manufacturers Association, Naples, FloridaS. Rhoad, Webster Industries, Inc., Tiffin, OhioK. J. Smith, Drives, Inc., Fulton, IllinoisJ. L. Wright, Consultant, Indianapolis, Ind
23、ianaC. G. Springman, Alternate, Diamond Chain Co., Indianapolis, IndianaSUBCOMMITTEE 4 AGRICULTURAL, DETACHABLE, ANDPINTLE CHAINSK. J. Smith, Chair, Drives, Inc., Fulton, IllinoisD. Moore, Jeffrey Chain Co., Morristown, TennesseeJ. L. Wright, Consultant, Indianapolis, IndianavINTENTIONALLY LEFT BLAN
24、K CORRESPONDENCE WITH THE B29 COMMITTEEGeneral. ASME Standards are developed and maintained with the intent to represent theconsensus of concerned interests. As such, users of this Standard may interact with theCommittee by requesting interpretations, proposing revisions, and attending Committeemeet
25、ings. 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 the Standard to incorporatechanges that appear necessary or desirable, as demonstrated
26、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 as possible, citing the paragraph number(s), the proposed wording, and adetailed descri
27、ption 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 only be rendered in response to a writtenrequest sent to the Secretary of the B29 Main Co
28、mmittee.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 the topic of the inquiry.Edition: Cite the applicable edition of the Standard for whi
29、ch 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 proprietary design or situation. The inquirer mayalso include any plans or drawings, whic
30、h 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, which may inadvertently change the intent of the original request.ASME procedures pr
31、ovide 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 Committee or Subcommittee. ASMEdoes not “approve,” “certify,” “rate,” or “endorse” any it
32、em, 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 Secretaryof the B29 Main Committee.viiINTENTIONALLY LEFT BLANK PREFACEORGANIZATION OF
33、THIS DOCUMENTThis Standard compiles the following standards:Standard TitleASME B29.6 Steel Detachable Link Chains, Attachments, and SprocketsASME B29.19 Agricultural Roller Chains, Attachments, and SprocketsASME B29.25 Open Barrel Steel Pintle-Type Conveyor Chains, Attachments, andSprocketsADDENDA S
34、ERVICEThis edition of ASME B29.300-1998 includes an automatic addenda subscription serviceup to the publication of the next edition. The addenda subscription service will includeapproved revisions to the existing parts.ixINTENTIONALLY LEFT BLANK CONTENTSForeword . iiiStandards Committee Roster vCorr
35、espondence With the B29 Committee viiPreface . ixASME B29.6 Steel Detachable Link Chains, Attachments, and Sprockets 1ASME B29.19 Agricultural Roller Chains, Attachments, and Sprockets 17ASME B29.25 Open Barrel Steel Pintle-Type Conveyor Chains, Attachments,and Sprockets . 25xiINTENTIONALLY LEFT BLA
36、NK ASME B29.61 Definitions 32 References 33 General Chain Proportions and Designations 34 Attachments 35 Sprockets . 3Figures1 Steel Detachable Link Chain 42 Link . 43 Sprocket Tooth Form . 15Tables1 Plain Link . 52 A1 Attachment . 63 A2 Attachment . 74 C1 Attachment . 85 C15 Attachment 86 G27 Attac
37、hment 97 HB4 Attachment 108 K1 Attachment . 109 SD Attachment . 1110 SH Attachment . 1111 AS Attachment . 1212 Coupler Link . 1313 Coupler Pin 1414 Sprockets Maximum Eccentricity and Face Runout at Root Diameter . 1615 Sprocket Factors 161INTENTIONALLY LEFT BLANK ASME B29.6-1998STEEL DETACHABLE LINK
38、 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).measuring load: the load under which a dry or lightlylubricated chain should be measured for length.steel detachable link chain: a series of success
39、ivelyassembled steel links in which the end bars articulateinside the hook. The chain is detached by exing itand driving the end bar out of the adjoining hook (seeFig. 1 of B29.6).2 REFERENCESThe following is a list of publications referenced inthis Standard.Chains for Power Transmission and Materia
40、l HandlingPublisher: American Chain Association (ACA), 6724Lone Oak Boulevard, Naples, FL 341093 GENERAL CHAIN PROPORTIONS ANDDESIGNATIONS3.1 Minimum Ultimate Tensile StrengthThe Minimum Ultimate Tensile Strength (M.U.T.S.),for chain covered by this Standard, is the minimumforce at which an unused,
41、undamaged chain could failwhen subjected to a single tensile loading test.WARNING: The Minimum Ultimate Tensile Strength is NOT a“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,in a uniaxial d
42、irection, to the ends of the chain sample.(b) The tensile test is a destructive test. Even thoughthe chain may not visibly fail when subjected to theM.U.T.S., it will have been damaged and will be untfor service.CAUTION: This load is beyond the yield strength of the chainand would render the chain u
43、nsuitable for application.3(c) For application guidance, consult the manufactur-ers catalogs or the American Chain Associationshandbook, Chains for Power Transmission and MaterialHandling.4 ATTACHMENTSSee Tables 1 through 11 of B29.6 for tolerancesand dimensions for the following attachments: plainl
44、ink, A1, A2, AS, C1, C15, G27, HB4, K1, SD, and SH.See Table 12 of B29.6 for coupler link informationand Table 13 of B29.6 for coupler pin information.5 SPROCKETS5.1 General InformationSprockets for use with steel detachable chains areusually made of cast or wrought ferrous material. Wearresistance
45、is frequently designed into the material ofthe tooth faces. Sprocket bodies are of many congura-tions (e.g., plate, arm, web, at, or dished). When hubscontaining the sprocket mounting bore are employed,they may project from either side or from both sidesof the sprocket body.This Standard covers only
46、 the dimensions controllingthe surfaces that must properly engage or clear thechain.Dimensions are given in a decimal inch system. Themetric dimensions given are recommended conversionsfrom the decimal inch system. In some cases theconversion is not exact; the decimal inch system istherefore to be t
47、aken as the base control dimension.Sprockets with standard tooth forms are capable oftransmitting chain loads in systems operating undera wide 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) s
48、lack strand tensions as small as 0.25% of theworking tension in the chain;(c) friction between the chain and the sprocket toothfaces as low as 10%; and(d) the number of chain links in contact with theperiphery of the sprocket as few as 0.5 (N 1).STEEL DETACHABLE LINK CHAINS,ATTACHMENTS, AND SPROCKET
49、SASME B29.6-1998FIG. 1 STEEL DETACHABLE LINK CHAINIndividually, the above limits are not absolute. Varia-tions may be accepted in each of them provided com-mensurate modications are made in other limits.5.2 Sprocket Tooth FormThe elements of the tooth proles for sprockets forstandard chains are given in Fig. 3 and Tables 14 and15 of B29.6.4FIG. 2 LINKMaximum tooth thickness t may not exceed (0.95D minus actual sideface oscillation), where D equalshook width of chain.STEEL DETACHABLE LINK CHAINS,ATTACHMENTS, AND SPROCKETS ASME B29.6-1998TABLE 1 PLAIN LINKDimensions, in.H
