1、 Rolling bearings Balls Part 1: Steel balls ANSI/ABMA/ISO 3290-1:2014 Sponsor American Bearing Manufacturers Association ANSI/ABMA/ISO 3290-1:2014 (Identical Adoption of ISO 3290-1:2008) Copyright American Bearing Manufacturers Association, Inc. Neither part of the printed publication, nor any part
2、of the electronic tile may be reproduced or transmitted in any form, including transmittal by e-mail, by file transfer protocol (FTP), or by being made part of a network-accessible system, without the prior written permission of the copyright owner. ABMA FOREWORD (This foreword is not part of ANSI/A
3、BMA/ISO 3290-1:2014.) IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of developing International Standards is carried out through IS0 technical committees. Every member body interested in a subject for whi
4、ch a technical committee has been authorized 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. The text is approved as an International Standard if a two-thirds majority of the P (partic
5、ipating)-members of the TC/SC are in favor and not more than one-quarter of the total number of votes cast are negative. International Standard 3290-1:2008 was prepared by Technical Committee ISO/TC 4, Rolling Bearings. This standard was processed and approved for submittal to ANSI for national adop
6、tion by Accredited Standards Committee B3. Committee approval of the national adoption of this standard does not necessarily mean that all committee members voted for its adoption. Suggestions for the improvement of this standard gained through experience with its use will be welcomed. These suggest
7、ions should be sent to: ASC B3 Secretariat American Bearing Manufacturers Association 2025 M Street, N.W., Suite 800 Washington, DC 20036 Reference numberISO 3290-1:2008(E)ISO 2008INTERNATIONAL STANDARD ISO3290-1First edition2008-12-15Rolling bearings Balls Part 1: Steel balls Roulements Billes Part
8、ie 1: Billes de roulement en acier Copyright by ISO. Reproduced by ANSI with permission of and under license from ISO. Licensed to committee members for further standardization only. Downloaded 10/1/2013 1:56 PM. Not for additional sale or distribution.ISO 3290-1:2008(E) PDF disclaimer This PDF file
9、 may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the r
10、esponsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-cre
11、ation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2
12、008 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any 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 co
13、untry of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2008 All rights reservedCopyright by ISO. Reproduced by ANSI with permission of and under license from I
14、SO. Licensed to committee members for further standardization only. Downloaded 10/1/2013 1:56 PM. Not for additional sale or distribution.ISO 3290-1:2008(E) ISO 2008 All rights reserved iiiContents Page Foreword iv 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 1 4 Symbols . 4 5 Req
15、uirements 4 5.1 Ball size 4 5.2 Quality of geometry and surface. 4 5.3 Sorting accuracy and ball gauges 5 5.4 Hardness 5 6 Material 5 7 Dimensions and tolerances . 5 Annex A (normative) Method for assessment of deviation from spherical form 8 Annex B (normative) Illustration of ball gauges and sorti
16、ng principles 9 Bibliography . 11 Copyright by ISO. Reproduced by ANSI with permission of and under license from ISO. Licensed to committee members for further standardization only. Downloaded 10/1/2013 1:56 PM. Not for additional sale or distribution.ISO 3290-1:2008(E) iv ISO 2008 All rights reserv
17、edForeword 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. Each member body interested in a subject for which a
18、 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 International Electrotechnical Commission (IEC) on all matte
19、rs of electrotechnical standardization. International Standards 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 circula
20、ted to the member bodies for voting. Publication as an International 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 responsibl
21、e for identifying any or all such patent rights. ISO 3290-1 was prepared by Technical Committee ISO/TC 4, Rolling bearings. This first edition of ISO 3290-1 cancels and replaces ISO 3290:2001, which has been technically revised. ISO 3290 consists of the following parts, under the general title Rolli
22、ng bearings Balls: Part 1: Steel balls Part 2: Ceramic balls Copyright by ISO. Reproduced by ANSI with permission of and under license from ISO. Licensed to committee members for further standardization only. Downloaded 10/1/2013 1:56 PM. Not for additional sale or distribution.INTERNATIONAL STANDAR
23、D ISO 3290-1:2008(E) ISO 2008 All rights reserved 1Rolling bearings Balls Part 1: Steel balls 1 Scope This part of ISO 3290 specifies requirements for finished steel balls for rolling bearings. 2 Normative references The following referenced documents are indispensable for the application of this do
24、cument. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 683-17, Heat-treated steels, alloy steels and free-cutting steels Part 17: Ball and roller bearing steels ISO 1132-1, Rolling be
25、arings Tolerances Part 1: Terms and definitions ISO 4288, Geometrical Product Specifications (GPS) Surface texture: Profile method Rules and procedures for the assessment of surface texture ISO 5593, Rolling bearings Vocabulary ISO/TS 12181-1, Geometrical Product Specifications (GPS) Roundness Part
26、1: Vocabulary and parameters of roundness ISO 15241, Rolling bearings Symbols for quantities 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 1132-1, ISO 5593 and the following apply. 3.1 nominal ball diameter diameter value which is used for the gene
27、ral identification of a ball size ISO 5593:1997, 05.04.01 3.2 single ball diameter distance between two parallel planes tangential to the actual surface of a ball ISO 5593:1997, 05.04.02 Copyright by ISO. Reproduced by ANSI with permission of and under license from ISO. Licensed to committee members
28、 for further standardization only. Downloaded 10/1/2013 1:56 PM. Not for additional sale or distribution.ISO 3290-1:2008(E) 2 ISO 2008 All rights reserved3.3 mean ball diameter arithmetical mean of the largest and the smallest of the single diameters of a ball ISO 5593:1997, 05.04.03 3.4 variation o
29、f ball diameter difference between the largest and the smallest of the single diameters of a ball ISO 5593:1997, 05.04.04 3.5 deviation from spherical ball surface various types of deviation from the perfect spherical ball surface, uniformly or non-uniformly distributed and repeated around the ball
30、surface NOTE The deviations to which limits can be attributed are: deviation from spherical form; waviness; surface roughness; surface defect. 3.5.1 deviation from spherical form radial distance between the smallest circumscribed sphere and the greatest inscribed sphere, with their centres common to
31、 the least squares sphere centre NOTE This definition supersedes ISO 5593:1997, 05.06.03. 3.5.2 waviness surface irregularities of random or periodical deviation from the ideal spherical form NOTE 1 Waviness can be evaluated as velocity amplitude by default. NOTE 2 In practice, the waviness componen
32、ts are separated from the real surface by a waviness analyser (filters). 3.5.3 surface roughness surface irregularities with relatively small spacings, which usually include irregularities resulting from the method of manufacture being used and/or other influences NOTE These irregularities are consi
33、dered within the limits that are conventionally defined, e.g., within the limits of the sampling length. 3.5.4 surface defect element, irregularity or group of elements and irregularities of the real surface, unintentionally or accidentally caused during manufacture, storage, handling or use of the
34、surface NOTE 1 These types of element or irregularity differ considerably from those constituting the surface roughness and are not considered during the measurement of the surface roughness. NOTE 2 The limits for surface defects are not specified in this part of ISO 3290. Copyright by ISO. Reproduc
35、ed by ANSI with permission of and under license from ISO. Licensed to committee members for further standardization only. Downloaded 10/1/2013 1:56 PM. Not for additional sale or distribution.ISO 3290-1:2008(E) ISO 2008 All rights reserved 33.6 ball lot definite quantity of balls manufactured under
36、conditions presumed uniform and which is considered as an entity ISO 5593:1997, 05.04.05 3.7 mean diameter of ball lot arithmetical mean of the mean diameters of the largest ball and the smallest ball in a ball lot ISO 5593:1997, 05.04.06 3.8 variation of ball lot diameter difference between the mea
37、n diameters of the largest ball and the smallest ball in a ball lot ISO 5593:1997, 05.04.07 3.9 ball grade specific combination of dimensional, form, surface roughness and sorting tolerances for balls ISO 5593:1997, 05.04.08 NOTE Ball grade is identified by the letter G and a number, e.g. G 20. 3.10
38、 ball gauge amount by which the mean diameter of ball lot should differ from the nominal ball diameter, this amount being one of an established series ISO 5593:1997, 05.04.09 NOTE 1 Each ball gauge is a whole multiple of the ball gauge interval established for the ball grade in question. NOTE 2 A ba
39、ll gauge, in combination with the ball grade and nominal diameter, is considered as the most exact ball size specification to be used by a customer for ordering purposes. 3.11 deviation of a ball lot from ball gauge difference between the mean diameter of a ball lot and the sum of the nominal ball d
40、iameter and the ball gauge ISO 5593:1997, 05.04.10 3.12 ball subgauge amount, of an established series of amounts, which is the nearest to the actual deviation from the ball gauge of a ball lot ISO 5593:1997, 05.04.11 NOTE 1 Each ball subgauge is a whole multiple of the ball subgauge interval establ
41、ished for the ball grade in question. NOTE 2 The ball subgauge, in combination with the nominal ball diameter and the ball gauge, is used by ball manufacturers to denote the mean diameter of a ball lot and is not generally used by customers for ordering purposes. 3.13 hardness rolling bearings measu
42、re of resistance to penetration as determined by a specific test method NOTE For steel balls, such a test method is the Rockwell hardness test. Copyright by ISO. Reproduced by ANSI with permission of and under license from ISO. Licensed to committee members for further standardization only. Download
43、ed 10/1/2013 1:56 PM. Not for additional sale or distribution.ISO 3290-1:2008(E) 4 ISO 2008 All rights reserved4 Symbols For the purposes of this document, the symbols given in ISO 15241 and the following apply. The symbols (except those for tolerances) and the values given in Tables 1 to 3 denote n
44、ominal dimensions unless specified otherwise. Dwnominal ball diameter Dwmmean ball diameter DwmLmean diameter of ball lot Dwssingle ball diameter G ball grade S ball gauge VDwLvariation of ball lot diameter VDwsvariation of ball diameter RSwdeviation from spherical form Sdeviation of a ball lot from
45、 ball gauge NOTE S= DwmL (Dw+ S) 5 Requirements 5.1 Ball size The preferred nominal ball diameters are given in Table 1 and, where applicable, the corresponding inch sizes are given for reference purposes only. 5.2 Quality of geometry and surface Requirements for: variation of ball diameter, see Tab
46、le 2; deviation from spherical form, see Table 2; waviness, see Note 1; surface roughness, see Table 2; surface appearance and defects, see Note 2. Measurement of surface roughness shall be carried out in accordance with ISO 4288. NOTE 1 Limits and measuring methods for waviness are subject to agree
47、ment between customer and supplier. NOTE 2 Local defects originating from machining and handling are subject to agreement between customer and supplier. Copyright by ISO. Reproduced by ANSI with permission of and under license from ISO. Licensed to committee members for further standardization only.
48、 Downloaded 10/1/2013 1:56 PM. Not for additional sale or distribution.ISO 3290-1:2008(E) ISO 2008 All rights reserved 55.3 Sorting accuracy and ball gauges Table 3 comprises the applicable values for: variation of ball lot diameter; gauge interval; preferred gauges; subgauge interval; subgauges. 5.
49、4 Hardness Hardness values and the measuring method shall be agreed upon between customer and supplier. 6 Material The balls shall be manufactured from steel in accordance with ISO 683-17. 7 Dimensions and tolerances The preferred nominal ball diameters are given in Table 1. Tolerances for form and surface roughness are given in Table 2. Sorting tolerances and ball gauges are given in Table 3. Copyright by ISO. Reproduced by ANSI with permission of and unde
