2001_2016.pdf

ASME B29.22-2001(Revision of ASME B29.22M-1995)DROP FORGED RIVETLESSCHAINS,SPROCKET TEETHDRIVE CHAIN/DRIVE DOGSA N A M E R I C A N N A T I O N A LS T A N D A R DASME B29.22-2001(Revision of ASME B29.22M-1995)DROP FORGED RIVETLESSCHAINS,SPROCKET TEETHDRIVE CHAIN/DRIVE DOGSA N A M E R I C A N N A T I O N A LS T A N D A R DREAFFIRMED 2016AN AMERICAN NA TIONALST ANDARDDROP FORGED RIVETLESSCHAINS,SPROCKET TEETHDRIVE CHAIN/DRIVE DOGSASME B29.22-2001(Revision of ASME B29.22M-1995)Date of Issuance:July 1,2002This Standard will be revised when the Society approves the issuance of anew edition.There will be no addenda issued to this Edition.ASME will issue written replies to inquiries concerning interpretations oftechnical aspects of this Standard.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 forAmerican National Standards.The Standards Committee that approved the code or standardwas balanced to assure that individuals from competent and concerned interests have had anopportunity to participate.The proposed code or standard was made available for public reviewandcommentwhichprovidesanopportunityforadditionalpublicinputfromindustry,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 inconnection withany itemsmentioned inthis document,and doesnot undertaketo insureanyoneutilizing a standard against liability for infringement of any applicable letters patent,nor assumeany such liability.Users of a code or standard are expressly advised that determination of thevalidity of any such rights,and the risk of infringement of such rights,is entirely their ownresponsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not tobe interpreted as government or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued inaccordance with established the ASME procedures and policies,which precludes the issuanceof 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 EngineersThree Park Avenue,New York,NY 10016-5990Copyright 2002 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll Rights ReservedPrinted in U.S.A.CONTENTSForeword.ivCommittee Roster.vCorrespondence with B29 Committee.vi1Introduction.12Definitions.13Minimum Ultimate Tensile Strength.24Measuring Load.25Strand Length Tolerance.26Dimensions for Chain Links.27Finish.28Numbering System.29Chain Assembly.210Sprockets.211Drive.312Drive Dogs.3Figures1Pin.12Regular Drop Forged Rivetless Chain.13X-Type Drop Forged Rivetless Chain.24X-Type Chain.25Chain Assembly.36Sprocket Tooth Form A.97Sprocket Tooth Form B.108Drive.119X 348 and 348 Dog.1110X 458 and 458 Dog.1211X 678 and 678 Dog.1212X 100-16 and 100-16 Dog.1313X 75-13 and 75-13 Dog.1314X 150-22 and 150-22 Dog.14Tables1Maximum and Minimum Strand Tolerances.42Regular Drop Forged Rivetless Chain.53X-Type Drop Forged Rivetless Chain.64Modified X-Type Drop Forged Rivetless Chain.75Sprockets:Maximum Eccentricity and Face Runout at Root Diameter.76Sprocket Factors.87Sprocket Tooth Form.8iiiFOREWORDA subcommittee was appointed by the ANSI B29 Committee in September of 1978 toestablish an interchangeability standard for Drop Forged Rivetless Chains.The terminologyof this chain series was established many years ago and has become generic for thisreferenced chain.As in all other B29 chain standards,no attempt is made to establish absolute engineeringcharacteristics or tolerances where interchangeability is not involved.Other materials and methods have been used to manufacture the rivetless chain.However,this standard is promulgated for the Drop Forged type of heat-treated medium carbon steelchain in the sizes that comprise the vast majority of use.Cast or fabricated chains of alloysor stainless steel are not considered.Particularly worthy of note is the actual and reference pitch of these chains.Rivetlesschains,in general,are a slight degree longer than reference pitch.This allows the use ofANSI and ISO standard roller chains in combination with attached“dogs”to act as drives.According to the experienced estimate of the subcommittee members,roller chain/dog drivesare used with more than half the drop forged rivetless chain systems in existence.Use ofthese drives permits systems of unlimited length.When considering metrication for these chains,the example followed was previouslyestablished for ANSI and BSA(DIN)chains,that is:soft metric conversion.This standardconsiders that the close even integers of pitch to the reference pitch is the appropriatemetric pitch conve