欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    ISO 15242-3-2006 Rolling bearings - Measuring methods for vibration - Part 3 Radial spherical and tapered roller bearings with cylindrical bore and outside surf.pdf

    • 资源ID:1251261       资源大小:233.25KB        全文页数:14页
    • 资源格式: PDF        下载积分:10000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要10000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。

    ISO 15242-3-2006 Rolling bearings - Measuring methods for vibration - Part 3 Radial spherical and tapered roller bearings with cylindrical bore and outside surf.pdf

    1、 Reference numberISO 15242-3:2006(E)ISO 2006INTERNATIONAL STANDARD ISO15242-3First edition2006-01-15Rolling bearings Measuring methods for vibration Part 3: Radial spherical and tapered roller bearings with cylindrical bore and outside surface Roulements Mthodes de mesurage des vibrations Partie 3:

    2、Roulements rotule sur rouleaux et rouleaux coniques, alsage et surface extrieure cylindriques Copyright International Organization for Standardization Provided by IHS under license with ISO Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ISO 15242-3:2006(E) PDF dis

    3、claimer This PDF file 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

    4、 accept therein the responsibility 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

    5、the file; the PDF-creation 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. ISO 2006 All

    6、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 country of

    7、 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 2006 All rights reservedCopyright International Organization for Standardization Provided by IHS under license w

    8、ith ISO Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ISO 15242-3:2006(E) ISO 2006 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope 1 2 Normative references 1 3 Terms and definitions .1 4 Measurement process.2 4.1 Speed of rotation .2 4.2 B

    9、earing axial load 2 5 Measurement and evaluation methods .2 5.1 Physical quantity measured .2 5.2 Frequency range2 5.3 Peak measurement 3 5.4 Testing sequence.3 6 Conditions for measurement3 6.1 Bearing conditions for measurement3 6.2 Conditions of the test environment .4 6.3 Conditions for the test

    10、 device 4 6.4 Requirements for the operator .6 Annex A (normative) Measurement of external axial loading alignment 7 Copyright International Organization for Standardization Provided by IHS under license with ISO Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ISO

    11、15242-3:2006(E) iv ISO 2006 All rights reservedForeword 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 me

    12、mber 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 International E

    13、lectrotechnical Commission (IEC) on all matters 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 ad

    14、opted 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 casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of pa

    15、tent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 15242-3 was prepared by Technical Committee ISO/TC 4, Rolling bearings. ISO 15242 consists of the following parts, under the general title Rolling bearings Measuring methods for vibration: Part 1: Funda

    16、mentals Part 2: Radial ball bearings with cylindrical bore and outside surface Part 3: Radial spherical and tapered roller bearings with cylindrical bore and outside surface Part 4: Radial cylindrical roller bearings with cylindrical bore and outside surface Copyright International Organization for

    17、Standardization Provided by IHS under license with ISO Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ISO 15242-3:2006(E) ISO 2006 All rights reserved vIntroduction Vibration of rotating rolling bearings is a complex physical phenomenon dependent on the conditions

    18、 of operation. Measuring the vibration output of an individual bearing under a certain set of conditions does not necessarily characterize the vibration output under a different set of conditions or when the bearing becomes part of a larger assembly. Assessment of the audible sound generated by the

    19、mechanical system incorporating the bearing is complicated further by the influence of the interface conditions, the location and orientation of the sensing device, and the acoustical environment in which the system operates. Assessment of airborne noise, which for the purpose of this document can b

    20、e defined as any disagreeable and undesired sound, is further complicated by the subjective nature of the terms “disagreeable“ and “undesired“. Structure-borne vibration can be considered the driving mechanism that ultimately results in the generation of airborne noise. Only selected methods for the

    21、 measurement of the structure-borne vibration of rotating rolling bearings are addressed in this part of ISO 15242. Vibration of rotating rolling bearings can be assessed by any of a number of means using various types of transducers and test conditions. No simple set of values characterizing vibrat

    22、ion of a bearing is adequate for the evaluation of the vibratory performance in all possible applications. Ultimately, a knowledge of the type of bearing, its application and the purpose of the vibration testing (e.g. as a manufacturing process diagnostic or an assessment of the product quality) is

    23、required to select the most suitable method for testing. The field of application for standards on bearing vibration is, therefore, not universal. However, certain methods have established a wide enough level of application to be considered as standard methods for the purposes of this part of ISO 15

    24、242. This part of ISO 15242 serves to define the detailed method for assessing vibration of radial spherical and tapered roller bearings with cylindrical bore and outside surface on a test rig. Copyright International Organization for Standardization Provided by IHS under license with ISO Not for Re

    25、saleNo reproduction or networking permitted without license from IHS-,-,-Copyright International Organization for Standardization Provided by IHS under license with ISO Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-INTERNATIONAL STANDARD ISO 15242-3:2006(E) ISO 2

    26、006 All rights reserved 1Rolling bearings Measuring methods for vibration Part 3: Radial spherical and tapered roller bearings with cylindrical bore and outside surface 1 Scope This part of ISO 15242 specifies vibration measuring methods for double-row radial spherical roller bearings and single-row

    27、 and double-row radial tapered roller bearings, with a contact angle up to and including 45, under established test conditions. It covers double-row radial spherical roller bearings as well as single-row and double-row radial tapered roller bearings with cylindrical bore and outside surface. 2 Norma

    28、tive references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the reference document (including any amendments) applies. ISO 286-2, ISO system of limits an

    29、d fits Part 2: Tables of standard tolerance grades and limit deviations for holes and shafts ISO 554, Standard atmospheres for conditioning and/or testing Specifications ISO 558, Conditioning and testing Standard atmospheres Definitions ISO 1132-1, Rolling bearings Tolerances Part 1: Terms and defin

    30、itions ISO 2041, Vibration and shock Vocabulary ISO 3205, Preferred test temperatures ISO 3448, Industrial liquid lubricants ISO viscosity classification ISO 5593, Rolling bearings Vocabulary ISO 15242-1:2004, Rolling bearings Measuring methods for vibration Part 1: Fundamentals 3 Terms and definiti

    31、ons For the purposes of this document, the terms and definitions given in ISO 1132-1, ISO 2041, ISO 5593 and ISO 15242-1 apply. Copyright International Organization for Standardization Provided by IHS under license with ISO Not for ResaleNo reproduction or networking permitted without license from I

    32、HS-,-,-ISO 15242-3:2006(E) 2 ISO 2006 All rights reserved4 Measurement process 4.1 Speed of rotation The default speed of rotation shall be 15 s1(900 r/min), with a tolerance of 12+%. Other speeds and tolerances may be used by agreement between the manufacturer and the customer; e.g. it may be neces

    33、sary to use a higher speed for bearings in the smaller size range 20 s1to 30 s1(1 200 r/min to 1 800 r/min) in order to obtain an adequate vibration signal. Conversely, it may be necessary to use a lower speed for bearings in the larger size range 7,5 s1to 10 s1(450 r/min to 600 r/min) to avoid poss

    34、ible roller, rib and raceway damage. 4.2 Bearing axial load The bearing load shall be in the axial direction with default values as specified in Table 1. Table 1 Default values for bearing axial load Single-row and double-row radial tapered roller bearings Double-row radial spherical roller bearings

    35、 Contact angle u 23 Contact angle 23 u 45 Bearing outside diameter D Default values for bearing axial load u min. max. min. max. min. max. mm N N N 30 50 45 55 90 110 180 220 50 70 90 110 180 220 360 440 70 100 180 220 360 440 720 880 100 140 360 440 720 880 1 080 1 320 140 170 540 660 1 080 1 320 1

    36、 440 1 760 170 200 720 880 1 440 1 760 1 800 2 200 Other axial loads and tolerances may be used by agreement between the manufacturer and the customer; e.g. depending on bearing design and lubricant used, it may be necessary to use a higher load to prevent roller/raceway slip, or a lower load to avo

    37、id possible roller, rib and raceway damage. 5 Measurement and evaluation methods 5.1 Physical quantity measured The default physical quantity to be measured is vibration velocity, r.m.s.(m/s), in the radial direction. 5.2 Frequency range The velocity signal shall be measured in one or more bands wit

    38、h default frequency ranges as specified in Table 2. Copyright International Organization for Standardization Provided by IHS under license with ISO Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ISO 15242-3:2006(E) ISO 2006 All rights reserved 3Table 2 Default fre

    39、quency ranges Low band (L) aMedium band (M) aHigh band (H) aSpeed of rotation Default frequencies min. max. flowfhighflowfhighflowfhighr/min Hz Hz Hz 882 909 50 150 150 900 900 5 000 a For rotational speeds other than the nominal 900 r/min, the frequency range should be adjusted in proportion to the

    40、 speed. For practical reasons, frequencies lower than 50 Hz or higher than 10 000 Hz should not be used, unless agreed upon between the manufacturer and the customer. NOTE Other frequency ranges may be considered by agreement between the manufacturer and the customer in those instances where specifi

    41、c ranges have greater importance to successful operation of the bearing. The use of spectral analysis of the vibration signal is an alternative. 5.3 Peak measurement Detection of peaks or spikes in the time domain velocity signal, usually due to surface defects and/or contamination in the test beari

    42、ng, may be considered as a supplementary option by agreement between the manufacturer and the customer. Various evaluation methods exist depending on the bearing type and the application. 5.4 Testing sequence Double-row radial spherical and tapered roller bearings shall be tested with the axial load

    43、 applied from one side of the outer ring and the test repeated with the axial load on the other side of the outer ring. Single-row radial tapered roller bearings shall be tested in their axial load acceptance direction only. For diagnostic purposes, performing multiple measurements with the outer ri

    44、ng in different angular positions relative to the pick-up is appropriate. For acceptance of the bearing, the highest vibration reading for the appropriate frequency range shall be within the limits mutually agreed between the manufacturer and the customer. For test duration see ISO 15242-1:2004, 6.5

    45、. 6 Conditions for measurement 6.1 Bearing conditions for measurement 6.1.1 Prelubrication Prelubricated (greased, oiled or solid lubricated) bearings, including sealed and shielded types, shall be tested in the as-delivered condition. NOTE Some greases, oils and solid lubricants increase or decreas

    46、e bearing vibration levels in comparison with the reference conditions in 6.1.2 and 6.1.3. The following reference condition procedures (6.1.2 and 6.1.3) normally apply for bearings that are not prelubricated. However, they may also be used in cases of dispute regarding the source of unacceptable vi

    47、bration levels. Copyright International Organization for Standardization Provided by IHS under license with ISO Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ISO 15242-3:2006(E) 4 ISO 2006 All rights reserved6.1.2 Cleanliness of the bearing Since contamination af

    48、fects vibration levels, the bearings shall be cleaned effectively, taking care not to introduce contamination or other sources of vibration. NOTE Some preservatives may meet the lubrication requirements (see 6.1.3) for vibration testing. In this case, it is not necessary to remove the preservative. 6.1.3 Lubrication Before testing, bearings shall be adequately lubricated with filtered oil (0,8 m maximum filter), having a nominal viscosity in the range of 10 mm2/s to 100 mm2/s. Additional information is given in ISO 344


    注意事项

    本文(ISO 15242-3-2006 Rolling bearings - Measuring methods for vibration - Part 3 Radial spherical and tapered roller bearings with cylindrical bore and outside surf.pdf)为本站会员(orderah291)主动上传,麦多课文档分享仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开