ASME_B18-27-1998.pdf

AN AMERICAN NATIONAL STANDARD ASME B18.27b-2000 ADDENDA to ASME B18.27-1998 TAPERED AND REDUCED CROSS SECTION RETAINING RINGS(INCH SERIES)THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS Three Park Avenue New York,NY 10016 Date of Issuance:November 15,2000 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 National Standards.The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate.The proposed code or standard was made available 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 position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document,and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent,nor assumes any such liability.Users of a code or standard are expressly advised that determination of the validity of any such patent rights,and the risk of infringement of such rights,is entirely their own responsibility.Participation by federal agency representatives)or person(s)affiliated with industry is not to be interpreted as government or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with the established ASME 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 Engineers Three Park Avenue,New York,NY 10016-5990 Copyright 8 2000 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All Rights Reserved Printed in U.S.A.-,-,-标准分享网 w w w.b z f x w.c o m 免费下载w w w.b z f x w.c o mASME B18.27b-2000 Following approval by the ASME Bi8 Committee and ASME,and after public review,ASME B18.27b-2000 was approved by the American National Standards Institute on February I l,2000.Addenda to the 1998 edition of ASME B 18.27 are issued in the form of replacement pages.Revisions,additions,and deletions are incorporated directly into the affected pages.It is advisable,however,that this page,the Addenda title and copyright pages,and all replaced pages be retained for reference.SUMMARY OF CHANGES This is the second Addenda to be published to ASME B18.27-1998.A previous Addenda was published in May 2000.Replace or insert the pages listed.Changes given below are identified on the pages by a margin note,(b),placed next to the affected area.Previous Addenda changes are indicated by(a).The pages not listed are the reverse sides of the listed pages and contain no changes.Page Location Change Updated to reflect Addenda 111 Foreword ix Preface Updated to reflect Addenda.xi 4 5 Contents 3.2.1 Table I Updated to reflect Addenda Revised Revised in its entirety 3.3.1 Revised 19 1-224 ASME B18.27.5 Added w w w.b z f x w.c o mFOREWORD American National Standards Committee B27 for the standardization of plain and lock washers was organized in March 1926 as Sectional Committee B27,under the aegis of the American Standqrds Association(later the United States of America Standards Institute and,as of October 6,1969,the American National Standards Institute,Inc.),with the Society of Automotive,Engineers and The American Society of Mechanical Engineers as joint secretariats.In 1950,this Committee was designated as responsible for the standardization of washers and,machine rings.At a meeting of ANSI B27 Standards Committee held on February 4,1971,it was recommended to the secretariats(ASME and SAE)that Subcommittees I,2,and 4 on Washers be merged into ANSI B18 Standards Committee and that Subcommittee 3 on Retaining Rings become a separate Standards Committee retaining the B27 designation.This change was subsequently approved by ANSI.Formation of Subcommittee 1 on Tapered and Reduced Section Retaining Rings was authorized by Standards Committee B27 at its meeting on October 15,1974.At this meeting,it was decided that no further effort should be expended on inch dimensional products and Subcommittee 1 was assigned the responsibility of preparing American metric standards for tapered and reduced section retaining rings.Subcommittee 1 prepared a draft proposal,General Purpose Tapered and Reduced Cross Section Retaining Rings,which was balloted on June 16,1975.At a subcommittee meeting held on February 17,1976,results from the letter ballot were reviewed.The proposal was accepted by the Subcommittee and presented to the B27 Standards Committee at its May 7