1、BSI Standards PublicationBS ISO 21538:2016Blanks for superabrasivecutting-off wheels Mountingand fixing bores Buildingconstruction and civilengineeringBS ISO 21538:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 21538:2016.It supersedes BS ISO 21538:2004 w
2、hich is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee MTE/13, Grinding wheels, abrasive tools, paper andcloths, and powders.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to in
3、clude all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 92832 1ICS 25.100.70Compliance with a British Standard cannot confer immunity fromlegal obligations.This Bri
4、tish Standard was published under the authority of theStandards Policy and Strategy Committee on 29 February 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 21538:2016 ISO 2016Blanks for superabrasive cutting-off wheels Mounting and fixing bores Building constru
5、ction and civil engineeringmes pour meules de trononnage superabrasives Alsages de montage et de fixation Btiment et gnie civilINTERNATIONAL STANDARDISO21538Second edition2016-02-01Reference numberISO 21538:2016(E)BS ISO 21538:2016ISO 21538:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED D
6、OCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior writt
7、en permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 21538:2016I
8、SO 21538:2016(E)Foreword iv1 Scope . 12 Normative references 13 Dimensions . 14 Designation 5 ISO 2016 All rights reserved iiiContents PageBS ISO 21538:2016ISO 21538:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO me
9、mber bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governme
10、ntal and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance
11、 are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention i
12、s drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/o
13、r on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity asse
14、ssment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 29, Small tools, Subcommittee SC 5, Grinding wheels and abrasives.This s
15、econd edition cancels and replaces the first edition (ISO 21538:2004), of which it constitutes a minor revision.iv ISO 2016 All rights reservedBS ISO 21538:2016INTERNATIONAL STANDARD ISO 21538:2016(E)Blanks for superabrasive cutting-off wheels Mounting and fixing bores Building construction and civi
16、l engineering1 ScopeThis International Standard specifies dimensions for mounting and fixing bores in blanks. These mounting and fixing bores comply with the relevant dimensions of the clamping flanges specified in ISO 21537-2.2 Normative referencesThe following documents, in whole or in part, are n
17、ormatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 2768-1, General tolerances Part 1: Tolerances for linea
18、r and angular dimensions without individual tolerance indicationsISO 21537-2, Clamping flanges for superabrasive cutting-off wheels Part 2: Building and construction3 DimensionsThe dimensions of a centre bore without hole circle (type A), of a centre bore with one hole circle for a driving pin (type
19、 B), of a centre bore with up to two hole circles for driving pins (type C), of a centre bore with up to two hole circles for mounting (type D) and of a centre bore with one hole circle for driving pins and one for mounting (type E) are shown on Figures 1 to 5, respectively and are given in Table 1.
20、Details which are not specified shall be chosen according to need.Figure 1 Type A ISO 2016 All rights reserved 1BS ISO 21538:2016ISO 21538:2016(E)Figure 2 Type BFigure 3 Type C2 ISO 2016 All rights reservedBS ISO 21538:2016ISO 21538:2016(E)Figure 4 Type DFigure 5 Type E ISO 2016 All rights reserved
21、3BS ISO 21538:2016ISO 21538:2016(E)Table 1 Dimensions of mounting and fixing boresDimensions in millimetres General tolerances ISO 2768 mD E H d1d2ad3P1and P20,1Number of driving holesF1and F20,1Maxi-mum number of fixing boresmin. H9 H13 57,4 80 100 120 45 60 90 110 125 130 D 300 1,620 25,411,5 X 13
22、0300 D 350 2,225,411,5 X 1 30350 D 400 2,225,411,55,5 10,4 X 0 or 1X 4 9035 50 6,6 12,6 XX 6 6060 400 D 500 2,525,411,5 9 17, 3X 0 or 1 X 6 60 on F1355060500 D 600 2,825,411,5 9 17, 3X 0 or 1 X 355060600 D 700 3,025,411,5 9 17, 3X 0 or 1 X X X X6 60 on F1or 2 6 60 on F1and F2355060 6 60700 D 900 3,0
23、25,411,5 9 17, 3XX 3 120X0, 1 or 4 X X X X355060 6 60900 D 1 000 3,525,411,5 9 17, 3XX 3 120X0, 1 or 4 X X X X355060 6 601 000 D 2 000 3,525,411,5 9 17, 3XX 3 120X0, 1 or 4 X X X X355060 6 60aIf the thickness of the blank is less than the depth, t, then d2results if dimension d3is respected.4 ISO 20
24、16 All rights reservedBS ISO 21538:2016ISO 21538:2016(E)4 DesignationEXAMPLE A blank for a superabrasive cutting-off wheel mounting and fixing bores type C with D = 900 mm, H = 60 mm, P1= 100 mm and P2= 120 mm is designated as follows:Mounting bore ISO 21538 - C 900 60 100/120 ISO 2016 All rights re
25、served 5BS ISO 21538:2016ISO 21538:2016(E) ISO 2016 All rights reservedICS 25.100.70Price based on 5 pagesThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services.BSI is incorporated by Ro
26、yal Charter. British Standards and other standardization products are published by BSI Standards Limited.British Standards Institution (BSI)BSI Group Headquarters389 Chiswick High Road London W4 4AL UKAbout usWe bring together business, industry, government, consumers, innovators and others to shape
27、 their combined experience and expertise into standards -based solutions.The knowledge embodied in our standards has been carefully assembled in a dependable format and refined through our open consultation process. Organizations of all sizes and across all sectors choose standards to help them achi
28、eve their goals.Information on standardsWe can provide you with the knowledge that your organization needs to succeed. Find out more about British Standards by visiting our website at or contacting our Customer Services team or Knowledge Centre.Buying standardsYou can buy and download PDF versions
29、of BSI publications, including British and adopted European and international standards, through our website at where hard copies can also be purchased. If you need international and foreign standards from other Standards Development Organizations, hard copies can be ordered from our Customer Servi
30、ces team.SubscriptionsOur range of subscription services are designed to make using standards easier for you. For further information on our subscription products go to British Standards Online (BSOL) youll have instant access to over 55,000 British and adopted European and international standards
31、from your desktop. Its available 24/7 and is refreshed daily so youll always be up to date. You can keep in touch with standards developments and receive substantial discounts on the purchase price of standards, both in single copy and subscription format, by becoming a BSI Subscribing Member. PLUS
32、is an updating service exclusive to BSI Subscribing Members. You will automatically receive the latest hard copy of your standards when theyre revised or replaced. To find out more about becoming a BSI Subscribing Member and the benefits of membership, please visit a Multi-User Network Licence (MUN
33、L) you are able to host standards publications on your intranet. Licences can cover as few or as many users as you wish. With updates supplied as soon as theyre available, you can be sure your documentation is current. For further information, email .RevisionsOur British Standards and other publicat
34、ions are updated by amendment or revision. We continually improve the quality of our products and services to benefit your business. If you find an inaccuracy or ambiguity within a British Standard or other BSI publication please inform the Knowledge Centre.CopyrightAll the data, software and docume
35、ntation set out in all British Standards and other BSI publications are the property of and copyrighted by BSI, or some person or entity that owns copyright in the information used (such as the international standardization bodies) and has formally licensed such information to BSI for commercial pub
36、lication and use. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. Details and advice
37、 can be obtained from the Copyright & Licensing Department.Useful Contacts:Customer ServicesTel: +44 845 086 9001Email (orders): Email (enquiries): SubscriptionsTel: +44 845 086 9001Email: Knowledge CentreTel: +44 20 8996 7004Email: Copyright & LicensingTel: +44 20 8996 7070Email: NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW
