BS ISO 76-2006 Rolling bearings - Static load ratings《滚动轴承 静载荷额定值》.pdf
《BS ISO 76-2006 Rolling bearings - Static load ratings《滚动轴承 静载荷额定值》.pdf》由会员分享,可在线阅读,更多相关《BS ISO 76-2006 Rolling bearings - Static load ratings《滚动轴承 静载荷额定值》.pdf(24页珍藏版)》请在麦多课文档分享上搜索。
1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58ICS 21.100.20Rolling bearings Static load ratingsBRITISH STANDARDBS ISO 76:2006BS ISO 76:2006This B
2、ritish Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2006 BSI 2006ISBN 0 580 48456 4The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “Intern
3、ational Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a Brit
4、ish Standard does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover, an inside front cover, the ISO title page, pages ii to v, a blank page, pages 1 to 14, an inside back cover and a back cover.The BSI copyright notice displayed in this docume
5、nt indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsA list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesenquiries on the interpretation, or proposals for change, and keep UK interests in
6、formed; monitor related international and European developments and promulgate them in the UK.National forewordThis British Standard reproduces verbatim ISO 76:2006 and implements it as the UK national standard. It supersedes BS 5645:1987 which is withdrawn.The UK participation in its preparation wa
7、s entrusted to Technical Committee MCE/7, Rolling bearings, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any Reference numberISO 76:2006(E)INTERNATIONAL STANDARD ISO76Third edition2006-05-01Rolling bearings Static
8、load ratings Roulements Charges statiques de base BS ISO 76:2006ii iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 1 4 Symbols . 3 5 Radial ball bearings 4 5.1 Basic static radial load rating 4 5.2 Static equivalent radial load 6 6 Thrust b
9、all bearings 7 6.1 Basic static axial load rating . 7 6.2 Static equivalent axial load 7 7 Radial roller bearings . 7 7.1 Basic static radial load rating 7 7.2 Static equivalent radial load 8 8 Thrust roller bearings. 9 8.1 Basic static axial load rating . 9 8.2 Static equivalent axial load 9 9 Stat
10、ic safety factor 10 9.1 General. 10 9.2 Ball bearings . 10 9.3 Roller bearings 11 Annex A (informative) Discontinuities in the calculation of basic static load ratings 12 BS ISO 76:2006iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standard
11、s 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 be represented on that committee. International organiz
12、ations, 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 Standards are drafted in accordance with the rules given in
13、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 International Standard requires approval by at least 75 % o
14、f 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 76 was prepared by Technical Committee ISO/TC 4, Rolling bear
15、ings, Subcommittee SC 8, Load ratings and life. This third edition cancels and replaces the second edition (ISO 76:1987), which has been technically revised. It incorporates ISO 76:1987/Amd 1:1999 in Annex A. BS ISO 76:2006vIntroduction Permanent deformations appear in rolling elements and raceways
16、of rolling bearings under static loads of moderate magnitude and increase gradually with increasing load. It is often impractical to establish whether the deformations appearing in a bearing in a specific application are permissible by testing the bearing in that application. Other methods are there
17、fore required to establish the suitability of the bearing selected. Experience shows that a total permanent deformation of 0,000 1 of the rolling element diameter, at the centre of the most heavily loaded rolling element/raceway contact, can be tolerated in most bearing applications without the subs
18、equent bearing operation being impaired. The basic static load rating is, therefore, given a magnitude such that, approximately, this deformation occurs when the static equivalent load is equal to the load rating. Tests in different countries indicate that a load of the magnitude in question can be
19、considered to correspond to a calculated contact stress of 4 600 MPa1)for self-aligning ball bearings, 4 200 MPa for all other ball bearings, and 4 000 MPa for all roller bearings, at the centre of the most heavily loaded rolling element/raceway contact. The equations and factors for the calculation
20、 of the basic static load ratings are based on these contact stresses. The permissible static equivalent load could be smaller than, equal to or greater than the basic static load rating, depending on the requirements for smoothness of operation and friction, as well as on actual contact surface geo
21、metry. Bearing users without previous experience of these conditions will need to consult the bearing manufacturer. 1) 1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2BS ISO 76:2006blank1Rolling bearings Static load ratings 1 Scope This International Standard specifies methods of calculating the basic stat
22、ic load rating and the static equivalent load for rolling bearings within the size ranges shown in the relevant ISO standards, manufactured from contemporary, commonly used, high quality, hardened bearing steel in accordance with good manufacturing practice and basically of conventional design as re
23、gards the shape of the rolling contact surfaces. Calculations carried out in accordance with this International Standard do not yield satisfactory results for bearings in which, because of application conditions and/or internal design, there is a considerable truncation of the area of contact betwee
24、n the rolling elements and the ring raceways. The same limitation applies where application conditions cause deviations from a normal load distribution in the bearing, for example misalignment, preload or extra large clearance or where special surface treatment or coatings are used. Where there is r
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
本资源只提供5页预览,全部文档请下载后查看!喜欢就下载吧,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- BSISO762006ROLLINGBEARINGSSTATICLOADRATINGS 滚动轴承 载荷 额定值 PDF

链接地址:http://www.mydoc123.com/p-588009.html