ANSI ASME B18.8.1-2014 Clevis Pins and Cotter Pins (Inch Series).pdf

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1、AN AMERICAN NATIONAL STANDARD ASME B18.8.1-2014Revision of ASME B18.8.1-1994 (R2010)Clevis Pins and Cotter Pins (Inch Series)ASME B18.8.1-2014Revision of ASME B18.8.1-1994 (R2010)Clevis Pins andCotter Pins(Inch Series)AN AMERICAN NATIONAL STANDARDTwo Park Avenue New York, NY 10016 USADate of Issuanc

2、e: January 14, 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 on the Committee Web page and under go.asme.org/InterpsData

3、base. Periodically certain actions of the ASME B18 Committee may be published asCases. Cases are published on the ASME Web site under the B18 Committee Page at go.asme.org/B18committee as they are issued.Errata to codes and standards may be posted on the ASME Web site under the Committee Pages topro

4、vide corrections to incorrectly published items, or to correct typographical or grammatical errorsin codes and standards. Such errata shall be used on the date posted.The B18 Committee Page can be found at go.asme.org/B18committee. There is an option availableto automatically receive an e-mail notif

5、ication when errata are posted to a particular code or standard.This option can be found on the appropriate Committee Page after selecting “Errata” in the “PublicationInformation” section.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was devel

6、oped under procedures accredited as meeting the criteria for American NationalStandards. The Standards Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate. The proposed code or standard was

7、madeavailable for public review and comment that provides an opportunity for additional public input from industry, academia,regulatory agencies, and the public-at-large.ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity.ASME does not take any posit

8、ion with respect to the validity of any patent rights asserted in connection with anyitems mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent, nor assume any such liability. Users of a code or st

9、andard are expresslyadvised that determination of the validity of any such patent rights, and the risk of infringement of such rights, isentirely their own responsibility.Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted asgovernment or

10、industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with the establishedASME procedures and policies, which precludes the issuance of interpretations by individuals.No part of this document may be reproduced i

11、n any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersTwo Park Avenue, New York, NY 10016-5990Copyright 2015 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENT

12、SForeword ivCommittee Roster . viCorrespondence With the B18 Committee vii1 Introduction 12 General Data Clevis Pins. 13 General Data Cotter Pins 2Figure1 Cotter Pin Length Gage 3Tables1 Clevis Pin Dimensions . 42 Clevis Pin Lengths . 53 Length Tolerance 54 Dimensions of Cotter Pins . 65 Preferred S

13、izes and Lengths of Extended Prong Type Cotter Pins . 76 Preferred Sizes and Lengths of Hammer Lock Type Cotter Pins . 7iiiFOREWORDThe need for a Standard covering machine pins was recognized by industry as far back asMarch 1926, when the Sectional Committee on the Standardization of Machine Pins wa

14、s organizedunder the auspices of the American Standards Association (ASA) (later the United States ofAmerica Standards Institute, and as of October 6, 1969, the American National Standards Institute,Inc. ANSI), with the Society of Automotive Engineers (SAE International) and the AmericanSociety of M

15、echanical Engineers (ASME) as joint sponsors.For the next year or two, an effort was made via correspondence to develop a basis on whicha standard for straight, taper, split, and dowel pins might be established. This correspondencedeveloped a distinct difference of opinion on the part of the manufac

16、turers and users of tapermachine pins, which fact seemed to discourage the members of the committee from attemptingstandardization on any of the types of pins within its scope. The sponsor organizations madefrequent efforts to revive this project through letters and the distribution of technical lit

17、eratureon this general subject, without avail. In December 1941, in its periodic review of standardsprojects for which the Society was sponsor, the ASME Standardization Committee decided thatthere was little hope for reviving this project and voted, subject to acceptance by the sponsors,to suggest t

18、o the ASA the transfer of this project to Sectional Committee B5 on the Standardizationof Small Tools and Machine Tool Elements. The sponsors agreed and on July 7, 1942, the ASAsanctioned this action and Sectional Committee B43 was discharged and the project was officiallytransferred to Section Comm

19、ittee B5.At its meeting in December 1942, Sectional Committee B5 voted to enlarge its scope to includemachine pins. Technical Committee No. 23 was subsequently established and charged with theresponsibility for technical content of standards covering machine pins. This group held its firstmeeting on

20、 November 30, 1943, at which time a Subgroup on Correlation and Recommendationswas appointed and it was voted to include clevis pins in addition to the other pin types alreadyunder consideration. Several drafts were prepared by the subgroup, distributed for critical com-ment to users, manufacturers,

21、 and general interests, and revised and resubmitted for comments.This action finally resulted in acceptance by Technical Committee 23 of a draft dated November1945, which was duplicated in printers proof form, under a date of October 1946, and distributedto the members of Sectional Committee B5 for

22、letter ballot approval. Subsequent to the approvalof the Sectional Committee, the proposal was next approved by the sponsor bodies, and presentedto the ASA for approval as an American Standard. This designation was granted on July 7, 1947.Following the issuance of the Standard, it became apparent th

23、at the table on cotter pins neededrevision. Accordingly, in 1953, a proposed revision was submitted to the Sectional Committee.After attaining Sectional Committee and sponsor approval, this revision was approved by theASA on July 9, 1954.In 2013, a major U.S. manufacturer of cotter pins brought to t

24、he attention of the B18.8 Subcommit-tee that there were several issues in this Standard for cotter pins that needed modification. Noneof the modifications change the pins function or quality.The first change is to open the tolerance on the total shank diameter, A, in Table 1 to makecotter pins easie

25、r to produce and to bring this tolerance in line with the other feature tolerances.The second modification is to increase the tolerance on gage hole diameter in Table 3 for holesof316-in. nominal diameter and up to be more consistent with the ratio of gage hole to nominaldiameter of the nominal hole

26、 sizes below316in. The third change is to modify the gap wordingin para. 3.4.2 to include 3 ranges and increase the gap on38-in. and larger nominal diameters.Finally, in para. 3.5.3, the ductility wording “. being bent back upon itself once with no.” hasno indication of a bent radius. A bent radius

27、in relation to the pin nominal size has been addedand expressed as a given diameter of pin to wrap the legs around 180 deg(i.e.,18-in. nominal to be bent back 180 deg around a 118-in. diameter gage pin).ivSeveral changes were also made to clevis pins. The following clevis pin sizes were added:916,11

28、8,114,138,112,158,134,178, and 2 in. Table 2 was added to describe how to derive the effectivelength, G, based on the various shank lengths, M.This revision was approved as an American National Standard on November 5, 2014.vASME B18 COMMITTEEStandardization of Bolts, Nuts, Rivets, Screws,Washers, an

29、d Similar Fasteners(The following is the roster of the Committee at the time of approval of this Standard.)STANDARDS COMMITTEE OFFICERSJ. Greenslade, ChairD. S. George, Vice ChairW. H. King, Vice ChairC. J. Gomez, SecretarySTANDARDS COMMITTEE PERSONNELV. Cartina, Nylok, LLCD. A. Clever, Contributing

30、 Member, ConsultantA. P. Cockman, Ford Motor Co.C. D. de la Garza, TSP, Inc.D. S. George, Ramco SpecialtiesC. J. Gomez, The American Society of Mechanical EngineersJ. Greenslade, Industrial Fasteners InstituteJ. J. Grey, Contributing Member, Fastener Consulting Services, Inc.A. Herskovitz, Contribut

31、ing Member, ConsultantJ. Hubbard, Leland-Powell Fasteners, Inc.J. C. Jennings, Contributing Member, Naval Surface Warfare CenterW. H. King, Fastenal Co.D. Korneffel, Cadenas PARTsolutionsSUBCOMMITTEE 8 MACHINE PINSA. E. Barry, Chair, Stanlok Corp.J. Beshar, Groov-Pin Corp.D. A. Clever, Contributing

32、Member, ConsultantJ. Greenslade, Industrial Fasteners InstituteA. Herskovitz, ConsultantR. W. Kerr, Kerr Lakeside, Inc.viJ. F. McCarrick, Defense Supply Center PhiladelphiaJ. P. Nash, Caterpillar, Inc.M. D. Prasad, Contributing Member, Global Materials and FinishingSolutions, Inc.Q. M. Smith III, Or

33、egon Department of TransportationD. J. Soscia, General Dynamics Electric Boat Corp.R. D. Strong, Doerken Corp.C. B. Wackrow, MNP Corp.W. K. Wilcox, ConsultantC. B. Williamson, Fastenal Co.C. J. Wilson, ConsultantJ. G. Zeratsky, Contributing Member, National Rivet andManufacturing Co.J. F. Koehl, Spi

34、rol International Corp.L. D. Sieper, FastboltD. J. Soscia, General Dynamics Electric Boat Corp.D. A. Thonus, Fastar, Inc.W. K. Wilcox, ConsultantC. J. Wilson, ConsultantCORRESPONDENCE WITH THE B18 COMMITTEEGeneral. ASME Standards are developed and maintained with the intent to represent theconsensus

35、 of concerned interests. As such, users of this Standard may interact with the Committeeby requesting interpretations, proposing revisions or a Case, and attending Committee meetings.Correspondence should be addressed to:Secretary, B18 Standards CommitteeThe American Society of Mechanical EngineersT

36、wo Park AvenueNew York, NY 10016-5990http:/go.asme.org/InquiryProposing Revisions. Revisions are made periodically to the Standard to incorporate changesthat appear necessary or desirable, as demonstrated by the experience gained from the applicationof the Standard. Approved revisions will be publis

37、hed periodically.The Committee welcomes proposals for revisions to this Standard. Such proposals should beas specific as possible, citing the paragraph number(s), the proposed wording, and a detaileddescription of the reasons for the proposal, including any pertinent documentation.Proposing a Case.

38、Cases may be issued for the purpose of providing alternative rules whenjustified, to permit early implementation of an approved revision when the need is urgent, or toprovide rules not covered by existing provisions. Cases are effective immediately upon ASMEapproval and shall be posted on the ASME C

39、ommittee Web page.Requests for Cases shall provide a Statement of Need and Background Information. The requestshould identify the Standard and the paragraph, figure, or table number(s), and be written as aQuestion and Reply in the same format as existing Cases. Requests for Cases should also indicat

40、ethe applicable edition(s) of the Standard to which the proposed Case applies.Interpretations. Upon request, the B18 Standards Committee will render an interpretation ofany requirement of the Standard. Interpretations can only be rendered in response to a writtenrequest sent to the Secretary of the

41、B18 Standards Committee at go.asme.org/Inquiry.The request for an 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

42、applicable edition of the Standard for which the interpretation isbeing requested.Question: Phrase the question as a request for an interpretation of a specific requirementsuitable for general understanding and use, not as a request for an approvalof a proprietary design or situation. The inquirer m

43、ay also include any plansor drawings that are necessary to explain the question; however, they shouldnot contain proprietary names or information.Requests that are not in this format may be rewritten in the appropriate format by the Committeeprior to being answered, which may inadvertently change th

44、e 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 by aninterpretation may appeal to the cognizant ASME Committee or Subcommittee. ASME does n

45、ot“approve,” “certify,” “rate,” or “endorse” any item, construction, proprietary device, or activity.Attending Committee Meetings. The B18 Standards Committee regularly holds meetingsand/or telephone conferences that are open to the public. Persons wishing to attend any meetingand/or telephone confe

46、rence should contact the Secretary of the B18 Standards Committee. FutureCommittee meeting dates and locations can be found on the Committee Page atgo.asme.org/B18committee.viiINTENTIONALLY LEFT BLANKviiiASME B18.8.1-2014CLEVIS PINS AND COTTER PINS (INCH SERIES)1 INTRODUCTION1.1 Scope1.1.1 This Stan

47、dard covers the complete dimen-sional and general data for clevis pins sizes316in.through 2 in. and cotter (split) pins sizes132in. through34in. of various materials.1.1.2 The inclusion of dimensional data in thisStandard is not intended to imply that all productsdescribed are stock production items

48、. Consumers shouldconsult with suppliers concerning the availability ofproducts.1.1.3 There is no ISO standard comparable to thisStandard.1.2 DimensionsAll dimensions in this Standard are given in inchesand apply before plating or coating. Tolerancing is inaccordance with ASME Y14.5.1.3 Responsibili

49、tyThe responsible party for the performance of the prod-ucts within the scope of this Standard is the organizationthat supplies the components to the purchaser and certi-fies or represents that the component was manufactured,tested, and inspected in accordance with this specifica-tion and meets all of its requirements.1.4 Inspection and Quality AssuranceUnless otherwise specified by the purchaser, accept-ability shall be based on conformance with the require-ments specified in ASME B18.18.1.5 TerminologyFor definitions of terms relating to pins or features

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