2015_2020.pdf

AN AM E R IC AN NAT IO NAL STANDARD ASME B29.28-2015High-StrengthChains for Power Transmission and Tension LinkagesREAFFIRMED 2020ASME B29.28-2015High-StrengthChains for PowerTransmission andTension LinkagesAN AMERICAN NATIONAL STANDARDTwo Park Avenue New York,NY 10016 USADate of Issuance:December 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.InterpretationsarepublishedontheCommitteeWebpageundergo.asme.org/InterpsDatabase.Periodically certain actions of the ASME B29 Committee may bepublished as Cases.Cases are published on the ASME Web site under the B29 Committee Page atgo.asme.org/B29committee as they are issued.Errata to codes and standards may be posted on the ASME Web site under the Committee Pages toprovide 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 B29 Committee Page can be found at go.asme.org/B29committee.There is an option availableto automatically receive an e-mail notification when errata are posted to a particular code or standard.ThisoptioncanbefoundontheappropriateCommitteePageafterselecting“Errata”inthe“PublicationInformation”section.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed 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 madeavailable forpublic review andcomment thatprovides an opportunityfor additional publicinput 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 position 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 assumes any such liability.Users of a code or standard 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 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 in 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.CONTENTSForeword.ivCommittee Roster.vCorrespondence With the B29 Committee.vi1Scope.12High-Strength Roller Chains.13References.2Figure1High-Strength Roller Chain and Components.3Tables1General Chain Dimensions,in.and lb.41MGeneral Chain Dimensions,mm and N.42Dimensional Limits for Interchangeability,in.52MDimensional Limits for Interchangeability,mm.5Nonmandatory AppendicesASupplementary Information on Chain Selection for Drives.7BSupplementary Information on Chain Selection for Tension Linkages.19iiiFOREWORDFor many years,several manufacturers have provided a line of high-strength chains for useon certain construction equipment and other machinery that encounter high starting or shockloads.These high-strength chains generally have medium-carbon,through-hardened pins towithstand high shock loads and solid rollers to withstand very high tooth pressures.These chainsare normally offered only in heavy series.In 2014,the ASME B29 Committee decided to develop a new standard to cover these high-strength chains.The new standard is intended to list limiting dimensions to ensure interchange-ability,to set forth minimum tensile strength and dynamic strength values,and to providesupplemental information concerning the application of high-strength chains.This Standardwas approved as an American National Standard on September 9,2015.ivASME 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.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 Powe