1、 AN AMERICAN NATIONAL STANDARD ASME B18.27a-1999 ADDENDA to ASME 818.27-1998 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: May 10, 2000 ASME is the registered trademark of The Americ
2、an 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
3、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, co
4、nstruction, 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 appl
5、icable 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 representative(s)
6、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 issua
7、nce 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 2000
8、 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All Rights Reserved Printed in U.S.A. AN AMERICAN NATIONAL STANDARD ASME B18.27b-2000 ADDENDA to ASME 818.27-1998 TAPERED AND REDUCED CROSS SECTION RETAINING RINGS (INCH SERIES) THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS Three Park Avenue New York,
9、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 st
10、andard 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 ag
11、encies, 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 und
12、ertake 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 right
13、s, is entirely their own responsibility. Participation by federal agency representative(s) 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
14、 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 America
15、n Society of Mechanical Engineers Three Park Avenue, New York, NY 10016-5990 Copyright 2000 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All Rights Reserved Printed in U.S.A. The American Society ol Mechanical Engineers AN AMERICAN NATIONAL STANDARD TAPERED AND REDUCED CROSS SECTION RETAINING RIN
16、GS (INCH SERIES) Incorporating ASME 818.27 .1, 818.27 .2, 818.27.3, 818.27.4, and 818.27.5 ASME 818.27-1998 Date of Issuance: July 30, 1999 The 1998 edition of this Standard is being issued with an automatic addenda subscription service. The use of an addenda allows revisions made in response to pub
17、lic review comments or committee actions to be published as necessary. The next edition of this Standard is scheduled for publication in 2001. ASME is the registered trademark of The American Society of Mechanical Engineers. This code or standard was developed under procedures accredited as meeting
18、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 comme
19、nt 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 an
20、y 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 d
21、etermination 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 representative(s) or person(s) affiliated with industry is not to be interpreted as government or industry endorsement of this co
22、de or standard. ASME accepts responsibility for only those interpretations issued in accordance with governing ASME procedures and policies which preclude the issuance of interpretations by individual volunteers. No part of this document may be reproduced in any form, in an electronic retrieval syst
23、em 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 1999 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All Rights Reserved Printed in U.S.A. ASME B 18.27 a-1999 Following approval
24、by the ASME Bl8 Committee and ASME, and after public review, ASME B18.27a-1999 was approved by the American National Standards Institute on May 10, 1999. Addenda to the 1998 edition of ASME B 18.27 are issued in the form of replacement pages. Revisions, additions, and deletions are incorporated dire
25、ctly 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 first Addenda to be published to ASME Bl8.27-1998. Replace or insert the pages listed. Changes given below a
26、re identified on the pages by a margin note, (a), placed next to the affected area. The pages not listed are the reverse sides of the listed pages and contain no changes. Page Location Change iii Foreword Updated to reflect Addenda ix Preface Updated to reflect Addenda xi Contents Updated to reflect
27、 Addenda 135-189 ASME B18.27.4 Added FOREWORD 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 Stand;irds Association (later the United States of America Standards Insti
28、tute and, as of October q, 1969, the American National Standards Institute, Inc.), with the Society of Automotive ;Engineers and The American Society of Mechanical Engineers as joint secretariats. In 950, this Committee was designated as responsible for the standardization of washers and 1machine ri
29、ngs. At a meeting; of ANSI B27 Standards Committee held on February 4, 1971, it was recommended to the secretariats (ASME and SAE) that Subcommittees l, 2, and 4 on Washers be merged into ANSI Bl8 Standards Committee and that Subcommittee 3 on Retaining Rings become a separate Standards Committee re
30、taining 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 expend
31、ed 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 o
32、n 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, 1976, meeting. At that meeting, a Jetter ballot of the entire committee was aut
33、horized. The Standard was duly approved by the Committee and its sponsors and submitted to the American National Standards Institute for designation as an American Standard. This designation was granted on October 20, 1977. It was recommended that American National Standards Committee B27 be made pa
34、rt of ASME B18 Main Committee. As a result, Subcommittee 27 of ASME Bl8 has the responsibility of developing and maintaining standards for retaining rings. A need evolved for commercial and military requirements to develop inch series standards for General Purpose Tapered and Reduced Cross Section T
35、ype Retaining Rings. It was agreed by the ASME B 18 Main Committee to have Subcommittee 27 develop these required inch series standards. The first of the inch standards, B 18.27 .1, covering External Type NAI, Internal Type NA2, and E-Ring Type NA3 rings, was approved by ANSI on July 16, 1998. The s
36、econd of the inch standards, B18.27.2, covering Heavy Duty External Type NA4, Reinforced E-Rings NA5, and C-Rings Type NA6, was approved by ANSI on July 16, 1998. The third of the inch standards, B 18.27 .3, covering Bowed External Rings NA 7, Bowed Internal Rings NA8, and Bowed External E-Rings NA9
37、, was approved by ANSI on July 16, 1998. The fourth of the inch standards, B 18.27.4, covering Inverted External Rings NA 10, Inverted Internal Rings NA! 1, Beveled External Rings NAI2, and Beveled Internal Rings NA13, was approved by ANSI on May 10, 1999. iii (a) (bl The fifth and final of the inch
38、 standards, Bl8.27.5, covering External Self-Locking Rings Type NA14, External Interlocking Rings Type NAl5, and External Bowed Locking Prongs Rings NA 16, was approved by ANSI on February 11, 2000. iv ASME 818 STANDARDS COMMITTEE Standardization of Bolts, Nuts, Rivets, Screws, Washers, and Similar
39、Fasteners (The following is the roster of the Committee at the time of approval of this Standard.) OFFICERS D. A. Clever, Chair R. D. Strong, Vice Chair S. W. Vass, Vice Chair K. M. Padilla, Secretary COMMITTEE PERSONNEL J. C. Akins, Safety Socket Screw Corp. J. Altman, Rotor Clip Co. J. B. Belford,
40、 Lawson Products, Inc. D. J. Broomfield, Illinois Tool Works, Inc. J. A. Buda, SPS Technologies, Inc. R. M. Byrne, Trade Association Management, Inc . D. A. Clever, Deere however, they should not contain proprietary names or information. Requests that are not in this format will be rewritten in this
41、 format by the Committee prior to being answered, which may inadvertently change the intent of the original request. ASME procedures provide for reconsideration of any interpretation when or if additional information that might affect an interpretation is available. Further, persons aggrieved by an
42、interpretation may appeal to the cognizant ASME Committee or Subcommittee. ASME does not “approve,“ “certify,“ “rate,“ or “endorse“ any item, construction, proprietary device, or activity. Attending Committee Meetings. The B 18 Main Committee regularly holds meetings, which are open to the public. P
43、ersons wishing to attend any meeting should contact the Secretary of the B 18 Main Committee . vii PREFACE ORGANIZATION OF THIS DOCUMENT This Standard compiles the following standards: Standard ASME Bl8.27.l ASME B 18.27.2 ASME B 18.27.3 ASME Bl8.27.4 ASME Bl8.27.5 Title External Type NAl, Internal
44、Type NA2, E-Ring Type NA3 Heavy Duty External Type NA4, Reinforced E-Rings NA5, C-Rings Type NA6 Bowed External Rings NA7, Bowed Internal Rings NA8, Bowed External E-Rings NA9 Inverted External NAlO, Inverted Internal NAll, Beveled External NA12, Beveled Internal NA13 External Self-Locking Rings NAl
45、4, External Interlocking Rings NA15, External Bowed Locking Prongs Rings NA 16 ADDENDA SERVICE This edition of ASME B 18.27-1998 includes an automatic addenda subscription service up to the publication of the next edition. The addenda subscription service will include the additional B 18.27 document
46、s not already included in the initial publication and approved revisions to the existing parts . ix (a) (b) ASME B18.27b-2000 Following approval by the ASME B18 Committee and ASME, and after public review, ASME B18.27b-2000 was approved by the American National Standards Institute on February 11, 20
47、00. 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
48、reference. SUMMARY OF CHANGES This is the second Addenda to be published to ASME 818.27-1998. 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 ch
49、anges are indicated by (a). The pages not listed are the reverse sides of the listed pages and contain no changes. Page Location Change iii Foreword Updated to reflect Addenda ix Preface Updated to reflect Addenda xi Contents Updated to reflect Addenda 4 3.2.l Revised 5 Table 1 Revised in its entirety 3.3.1 Revised 191-224 ASME B 18.27.5 Added CONTENTS !al (b) Foreword . . . . . . . . . . . . . . . . . . .
