1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ICS 21.100.20 ISBN 0-626-17468-6 SANS 12044:2006Edition 1ISO 12044:1995Edition 1 SOUTH AFRICAN NATIONAL STANDARD Rolling bearings Single-row angular cont
4、act ball bearings Chamfer dimensions for outer ring non-thrust side This national standard is the identical implementation of ISO 12044:1995 and is adopted with the permission of the International Organization for Standardization. Published by Standards South Africa 1 dr lategan road groenkloof priv
5、ate bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SANS 12044:2006 Edition 1 ISO 12044:1995 Edition 1 Table of changes Change No. Date Scope Abstract Specifies the minimum chamfer dimensions for the non-thrust side of sin
6、gle-row angular contact ball bearing outer rings where the minimum dimensions differ from those specified in SANS 445. Applicable for bearings in the diameter series 9, 0 and 2 for contact angles up to and including 30, and in the diameter series 2 and 3 for contact angles over 30. Keywords accessor
7、ies, ball bearings, bearings, chamfer, dimensions, minimum value, rings, rolling bearings. National foreword This South African standard was approved by National Committee StanSA TC 5120.02, Bearings, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT
8、agreement. INTERNATIONAL STANDARD ISO 12044 First edition 1995-05-15 Rolling bearings - Single-row angular contact ball bearings - Chamfer dimensions for outer ring non-thrust side oulements - oulements 2 billes ;j contact oblique 8 une rangle - Dimensions des arrondis des bagues cot6 non Charge Ref
9、erence number ISO 12044:1995(E) ISO 12044:1995(E) Foreword ISO (the International Organization for Standardization) 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. Esch
10、 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, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the Internationa
11、l Electrotechnical Commission (1 EC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies
12、casting a vote. International Standard ISO 12044 was prepared by Technical Committee lSO/TC 4, olling bearings. 0 ISO 1995 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronie or mechanrcal, including photo
13、copyrng and microfilm, without Permission in writing from the publisher. International Organization Case Postale 56 l CH-121 fo r Standa rdization Geneve 20 l Switzerland Printed in Switzerland ii INTERNATIONAL STANDARD 0 ISO ISO 12044:1995(E) Rolling bearings - Single-row angular contact ball beari
14、ngs - Chamfer dimensions for outer ring non-thrust side 1 Scope This International Standard specifies the minimum chamfer dimensions for the non-thrust side of Single-row an- gular contact ball bearing outer rings where the minimum dimensions differ from those specified in ISO 15. lt is applicable f
15、or bearings in the diameter series 9, 0 and 2 for contact angles up to and including 30”, and in the di- ameter series 2 and 3 for contact angles over 30”. 2 Normative references The following Standards contain provisions which, through reference in this text, constitute provisions of this Internati
16、onal Standard. At the time of publication, the editions indicated were valid. All Standards are subject to revision, and Parties to agreements based on this International Standard are encouraged to investigate the possi- bility of applying the most recent editions of the Standards indicated below. M
17、embers of IEC and ISO maintain registers of currently valid International Standards. ISO 15: 1981, olling bearings - Radial bearings - Boundary dimensions - General plan. ISO 582: 1995, olling bearings - Chamfer dimensions - Maximum values. 3 Symbols and dimensions See figure 1 and table 1. The dime
18、nsions given in table 1 corresponding to the Symbols shown in figure 1 are nominal dimensions unless specified otherwise. ISO 12044:1995(E) d = bore diameter r ,S = Single chamfer dimension a = contact angle NOTE - For tandem mounting, check that there is sufficient contact area between the mating r
19、ing faces. Figure 1 Table 1 - Chamfer dimensions ISO 12o4:1995E) Dimensions in millimetres d Diameter series Diameter series 0 2 2 3 cc30“ qs min lt * I 10 I 81 / OJ I 0,3 I 0,3 I 0,3 I 12 I I OJ I 0,3 I 0,3 I 05 I 15 I OJ I I 0,3 I 0,3 05 I 17 I OJ I 0,1 I 0,3 I 05 I I 20 I 0,15 I 0,3 I 0,3 I 08 I
20、05 I 25 I O,l5 I 0,3 I 0,3 I 0,6 I W I 30 I 0,15 I 0,3 I 0,3 I W 0,6 I 35 I 0,15 I 0,3 I 0,3 I W I I 40 I 0,15 I 0,3 I 03 I Q6 I 1 I 45 I 0,15 I 0,3 I 05 I I 1 I 50 I 0,15 I 0,3 I I 1 1 I 55 I 0,3 I I 016 I 1 1 1 I 60 I 013 l W I W I 1 I I 65 I 0,3 I 05 I 05 I 1 I I 70 013 I 016 l I 1 I 75 I 0,3 I W
21、 I I 1 1 I 80 0,3 I I 1 I 1 85 90 016 W 1 1 IJ 95 05 083 IJ IJ IJ 100 016 05 IJ IJ IJ 105 03 1 IJ IJ IJ 110 016 1 L1 IJ IJ 120 016 1 IJ IJ IJ 130 05 1 IJ IJ L5 140 05 1 IJ L5 150 1 1 IJ L5 160 1 1 IJ L5 170 1 L1 L5 L5 180 1 IJ L5 2 190 1 IJ L5 2 200 1 IJ 1,5 220 1 181 L5 240 IJ L5 1) Smallest permis
22、sible Single chamfer dimension of rls. The corresponding maximum chamfer dimenslons are given In ISO 582. 2) Where no values are given the chamfer dimensions are in accordance with the r, min values in ISO 15. 3 Standards South AfricaThis s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .
