BS ISO 251-2012 Conveyor belts with textile carcass Widths and lengths《织物芯输送机皮带 宽度和长度》.pdf

《BS ISO 251-2012 Conveyor belts with textile carcass Widths and lengths《织物芯输送机皮带 宽度和长度》.pdf》由会员分享，可在线阅读，更多相关《BS ISO 251-2012 Conveyor belts with textile carcass Widths and lengths《织物芯输送机皮带 宽度和长度》.pdf（12页珍藏版）》请在麦多课文档分享上搜索。

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 251:2012Conveyor belts with textilecarcass Widths and lengthsBS ISO 251:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 251:201

2、2. Itsupersedes BS ISO 251:2003 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/67, Conveyor belts.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the

3、necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 77351 8ICS 53.040.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard

4、was published under the authority of theStandards Policy and Strategy Committee on 31 October 2012.Amendments issued since publicationDate Text affectedBS ISO 251:2012 ISO 2012Conveyor belts with textile carcass Widths and lengthsCourroies transporteuses carcasse textile Largeurs et longueursINTERNA

5、TIONAL STANDARDISO251Fourth edition2012-10-01Reference numberISO 251:2012(E)BS ISO 251:2012ISO 251:2012(E)ii ISO 2012 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2012All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by a

6、ny means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copy

7、rightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 251:2012ISO 251:2012(E) ISO 2012 All rights reserved iiiContents PageForeword iv1 Scope 12 Widths and tolerances . 13 Tolerances on lengths 1Bibliography . 3BS ISO 251:2012ISO 251:2012(E)ForewordISO (the International Organization for Standar

8、dization) is a worldwide federation of national standards bodies (ISO member 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

9、 be represented on that committee. International organizations, governmental 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.International Stand

10、ards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Inter

11、national Standard requires approval by at least 75 % of the member bodies casting a vote.Attention is 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.ISO 251 was p

12、repared by Technical Committee ISO/TC 41, Pulleys and belts (including veebelts), Subcommittee SC 3, Conveyor belts.This fourth edition cancels and replaces the third edition (ISO 251:2003), of which it constitutes a minor revision.iv ISO 2012 All rights reservedBS ISO 251:2012INTERNATIONAL STANDARD

13、 ISO 251:2012(E)Conveyor belts with textile carcass Widths and lengths1 ScopeThis International Standard specifies the widths and lengths of conveyor belts with a textile carcass. It also specifies the corresponding tolerances.It is not applicable to light conveyor belts as described in ISO 21183-11

14、, as tolerances on the widths and lengths of cut light conveyor belts are given in ISO 151472.NOTE The lengths of conveyor belts are not standardized.2 Widths and tolerancesThe widths of conveyor belts and permissible tolerances shall be as given in Table 1.Table 1 Nominal widths and tolerances of o

15、pen-ended conveyor beltsDimensions in millimetresNominal width Tolerance300 5400 5500 5600 6650 6,5800 81 000 101 200 121 400 141 600 161 800 182 000 202 200 222 400 242 600 262 800 283 000 303 200 323 Tolerances on lengthsThe permissible tolerances for the lengths of conveyor belts, measured loose,

16、 shall be as given in Tables 2 and 3. ISO 2012 All rights reserved 1BS ISO 251:2012ISO 251:2012(E)Table 2 Tolerances on length for endless conveyor beltsLengthmTolerancemm 15 50 15 but 20 75 20 0,5 % of the length in metresTable 3 Tolerances on length for open-ended conveyor beltsBelt delivery condi

17、tionTolerance(maximum permissible difference between delivered length and ordered length)As one length025+ ,%In several lengths for each single length or as one length 5 % for the sum of all lengths 025+ ,%2 ISO 2012 All rights reservedBS ISO 251:2012ISO 251:2012(E)Bibliography1 ISO 21183-1, Light c

18、onveyor belts Part 1: Principal characteristics and applications2 ISO 15147, Light conveyor belts Tolerances on widths and lengths of cut light conveyor belts ISO 2012 All rights reserved 3BS ISO 251:2012ISO 251:2012(E) ISO 2012 All rights reservedICS 53.040.20Price based on 3 pagesThis page deliber

19、ately left blankBSI is the independent national body responsible for preparing British Standards and other standards-related publications, information and services. It presents the UK view on standards in Europe and at the international level. BSI is incorporated by Royal Charter. British Standards

20、and other standardisation products are published by BSI Standards Limited.British Standards Institution (BSI)raising standards worldwideBSI389 Chiswick High Road London W4 4AL UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 Standards and PASs are periodically updated by amendment or revision. Users of

21、British Standards and PASs should make sure that they possess the latest amendments or editions.It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using British Standards would inform the Secretar

22、y of the technical committee responsible, the identity of which can be found on the inside frontcover. Similary for PASs, please notify BSI Customer Services.Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001BSI offers BSI Subscribing Members an individual updating service called PLUS which ensures t

23、hat subscribers automatically receive the latest editions of British Standards and PASs.Tel: +44 (0)20 8996 7669 Fax: +44 (0)20 8996 7001Email: Buying standardsYou may buy PDF and hard copy versions of standards directly using acredit card from the BSI Shop on the website addition all orders for BS

24、I, international and foreign standards publicationscan be addressed to BSI Customer Services.Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001Email: In response to orders for international standards, BSI will supply the British Standard implementation of the relevant international standard, unless o

25、therwise requested.Information on standardsBSI provides a wide range of information on national, Europeanand international standards through its Knowledge Centre.Tel: +44 (0)20 8996 7004 Fax: +44 (0)20 8996 7005Email: BSI Subscribing Members are kept up to date with standards developments and receiv

26、e substantial discounts on the purchase priceof standards. For details of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002 Fax: +44 (0)20 8996 7001 Email: Information regarding online access to British Standards and PASs via British Standards Online can be found

27、at information about British Standards is available on the BSI website at www.bsi- the data, software and documentation set out in all British Standards and other BSI publications are the property of and copyrighted by BSI, or some person or entity that own copyright in the information used (such a

28、s the international standardisation bodies) has formally licensed such information to BSI for commerical publication 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 el

29、ectronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. Details and advice can be obtained from the Copyright & Licensing Department.Tel: +44 (0)20 8996 7070Email: