2011_2022.pdf

Precision Power Transmission Roller Chains,Attachments,and SprocketsAN AM E R IC AN NAT IO NAL STANDARDASME B29.1-2011(Revision of ASME B29.1 and Partition From ASME B29.100-2002)REAFFIRMED 2022ASME B29.1-2011(Revision of ASME B29.1 and Partition From ASME B29.100-2002)Precision PowerTransmission RollerChains,Attachments,and SprocketsAN AMERICAN NATIONAL STANDARDThree Park Avenue New York,NY 10016 USADate of Issuance:January 31,2012The next edition of this Standard is scheduled for publication in 2016.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard.Interpretations are published on the ASME Web site under the Committee Pages athttp:/cstools.asme.org/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 Committee Pages can be found at http:/cstools.asme.org/.There is an option available toautomatically 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 EngineersThree Park Avenue,New York,NY 10016-5990Copyright 2012 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword.vCommittee Roster.viiCorrespondence With the B29 Committee.viii1Roller Chain.12Attachments.23Sprockets.3Figures1Precision Power Transmission Roller Chain and Components.52Offset Link Plate.63Attachments.64Types of Sprockets.75Sprocket Flange Location and Thickness.86Theoretical Tooth Form.97Sprocket Diameters.12Tables1General Chain Dimensions,in.and lb.131MGeneral Chain Dimensions,mm and N.142Maximum Width Over Regular Pin,in.152MMaximum Width Over Regular Pin,mm.163Dimensional Limits for Interchangeable Chain Links,in.173MDimensional Limits for Interchangeable Chain Links,mm.184Straight Link Plate Extension Dimensions,in.194MStraight Link Plate Extension Dimensions,mm.195Bent Link Plate Extension Dimensions,in.205MBent Link Plate Extension Dimensions,mm.206Extended Pin Dimensions.217Sprocket Tooth Section Profile Dimensions of Commercial and PrecisionSprockets,in.227MSprocket Tooth Section Profile Dimensions of Commercial and PrecisionSprockets,mm.238Maximum Eccentricity and Face Runout Tolerances for Commercial Sprockets(Measured as Total Indicator Reading),in.248MMaximum Eccentricity and Face Runout Tolerances for Commercial Sprockets(Measured as Total Indicator Reading),mm.249Maximum Eccentricity and Face Runout Tolerances for Precision Sprockets(Measured as Total Indicator Reading),in.249MMaximum Eccentricity and Face Runout Tolerances for Precision Sprockets(Measured as Total Indicator Reading),mm.2410Sprocket Flange Thickness,in.2510MSprocket Flange Thickness,mm.2511Seating Curve Dimensions and Tolerances,in.2611MSeating Curve Dimensions and Tolerances,mm.2612Minus Tolerances on the Caliper Diameters of Commercial Sprockets forVarious Numbers of Teeth,in.2712MMinus Tolerances on the Caliper Diameters of Commercial Sprockets forVarious Numbers of Teeth,mm.2713Minus Tolera