1、BRITISH STANDARD BS EN ISO 8826-2:1997 BS 308-1.13: 1997 Technical drawings Roller bearings Part 2: Detailed simplified representation The European Standard EN ISO 8826-2:1997 has the status of a British Standard ICS 01.100.20; 21.100.20BSENISO8826-2:1997 This British Standard, having been prepared
2、under the directionof the Engineering SectorBoard, was published underthe authority of the Standards Board and comes intoeffect on 15 December 1997 BSI 05-1999 ISBN 0 580 28776 9 National foreword This British Standard is the English language version of ENISO8826-2:1997. It is identical with ISO8826
3、-2:1994. The UK participation in its preparation was entrusted to Technical Committee TDE/4, Engineering drawing, Metrology, Precision measurement and all related documentation, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European c
4、ommittee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-r
5、eferences Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be f
6、ound in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standa
7、rds are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN ISO title page, page 2, the ISO title page, page ii,
8、pages 1 to 10 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSENISO8826-2:1997 BSI 05-1999 i Contents P
9、age National foreword Inside front cover Foreword 2 Foreword ii Text of EN ISO 8826-2 1ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8826-2 October 1997 ICS 01.100.20;21.100.20 Descriptors: See ISO document English version Technical drawings Rolling bearings Part 2: Detailed simpl
10、ified representation (ISO 8826-2:1994) Dessins techniques Roulements Partie 2: Reprsentation simplifie particulire (ISO 8826-2:1994) Technische Zeichnungen Wlzlager Teil 2: Detaillierte vereinfachte Darstellung (ISO 8826-2:1994) This European Standard was approved by CEN on 12 September 1997. CEN me
11、mbers are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on applica
12、tion to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the
13、 same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committ
14、ee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All right of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 8826-2:1997 EENISO8826-2:1997 BSI
15、 05-1999 2 Foreword The text of the International Standard from Technical Committee ISO/TC 10 “Technical drawings, product definition and related documentation” of the International Organization for Standardization (ISO) has been taken over as an European Standard by CEN/CS. This European Standard s
16、hall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 1998, and conflicting national standards shall be withdrawn at the latest by April 1998. According to the CEN/CENELEC Internal Regulations, the national standards org
17、anizations of the following countries are bound to implement this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and theUnitedKingdom. Endorsement notice The
18、 text of the International Standard ISO 8826-2:1994 has been approved by CEN as a European Standard without any modification. NOTENormative references to International Standards are listed in Annex ZA (normative). Contents Page Foreword 2 Introduction 1 1 Scope 1 2 Normative references 1 3 Method of
19、 representation 1 4 Examples 8 Annex A (informative) Bibliography Inside back cover Annex ZA (normative) Normative referencestointernational publications with their relevant Europeanpublications Inside back cover Figure 1 1 Figure 2 8 Figure 3 8 Figure 4 9 Figure 5 9 Table 1 Elements of detailed sim
20、plified representation for rolling bearing features 2 Table 2 Combination of elements in detailed simplified representation 3 Table 3 Ball and roller bearings 4 Table 4 Needle roller bearings 5 Table 5 Combined bearings 6 Table 6 Thrust bearings 6ENISO8826-2:1997 ii BSI 05-1999 Foreword ISO (the Int
21、ernational 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 technical committee ha
22、s 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 matters of electrotechnical
23、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 casting a vote. International Standard ISO8826-2 was prepared by Technica
24、l Committee ISO/TC10, Technical drawings, product definition and related documentation. ISO 8826 consists of the following parts, under the general title Technical drawings Rolling bearings: Part 1: General simplified representation; Part 2: Detailed simplified representation. Annex A of this part o
25、f ISO 8826 is for information only. Descriptors: Drawings, technical drawings, bearings, rolling bearings, graphic methods.ENISO8826-2:1997 BSI 05-1999 1 Introduction ISO8826 provides rules for the simplified representation of rolling bearings. The principle of drawing practice is to depict the obje
26、ct to scale using lines. In simplified representations, only essential features are shown, preferably in outline (in order to save time and effort). The degree of simplification depends on the kind of object represented, the scale of the drawing and the purpose of the documentation. This means that
27、either a general simplified representation or a detailed one may be used. A detailed representation shows more details of rolling bearings, for example the number of rows or the possibility of alignment. In order to avoid misunderstandings, only one kind of simplification, either the general or the
28、detailed simplified representation, should be used on a drawing. 1 Scope This part of ISO 8826 specifies a detailed simplified representation for various rolling bearings. This representation should be used in cases where it is not necessary to show the exact shape and details of the rolling bearing
29、s, for example in assembly drawings. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO8826. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parti
30、es to agreements based on this part of ISO8826 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 15:1981, Rolling bearings Radial bearings Boun
31、dary dimensions General plan. ISO 104: 1) , Rolling bearings Thrust bearings Boundary dimensions, general plan. ISO 355:1977, Rolling bearings Metric tapered roller bearings Boundary dimensions and series designations. ISO 582: 2) , Rolling bearings Metric series Chamfer dimension limits. ISO 1206:1
32、982, Needle roller bearings Light and medium series Dimensions and tolerances. ISO 3030:1974, Needle roller bearings Needle roller and cage assemblies Metric series Part 1: Radial needle roller and cage assemblies Boundary dimensions and tolerances. ISO 3031:1979, Needle roller bearings Thrust needl
33、e roller and cage assemblies, thrust washers Dimensions and tolerances. ISO 3245:1974, Rolling bearings Needle roller bearings, drawn cup, without inner ring Metric series Boundary dimensions and tolerances. ISO 8443:1985, Radial ball bearings with flanged outer ring Flange dimensions. ISO 8826-1:19
34、89, Technical drawings Rolling bearings Part 1: General simplified representation. ISO 9628:1992, Rolling bearings Insert bearings and eccentric locking collars. 3 Method of representation 3.1 General rules See ISO 8826-1. The space on a drawing where a rolling bearing is located shall be circumscri
35、bed by means of a square or rectangle (even if there is no inner or outer ring respectively). 3.2 Elements of detailed simplified representation for rolling bearings The elements of detailed simplified representation for rolling bearings are given inTable 1. 1) To be published. (Revision of ISO 104:
36、1979) 2) To be published. (Revision of ISO 582:1979) Figure 1 ENISO8826-2:1997 2 BSI 05-1999 Examples of combinations of bearing features (according toTable 1) and load-bearing characteristics are given inTable 2. In representations perpendicular to the bearing axis, the rolling element may be shown
37、 as a circle, regardless of its actual shape (ball, roller, needle,etc.) and size (seeFigure 1). 3.3 Detailed simplified representation The detailed simplified representation of rolling bearings is shown in Table 3 to Table 6. Roller bearings shown in Table 3 to Table 5 are always depicted in the sp
38、ace above the horizontal axis of the bearing, while Table 6 refers to the vertical axis of the bearing. Table 1 Elements of detailed simplified representation for rolling bearing features No. Element Description Application 1.1 Long continuous straight line Line representing the axis of the rolling
39、element, without possibility of alignment 1.2 Long continuous arc of circle Line representing the axis of the rolling element, with possibility if alignment 1.3 Short continuous straight, line, crossing the long continuous line No. 1.1 or 1.2 at 90 (preferred simplified indication) co-incident with
40、the centreline (radial) of each rolling element. Number of rows and position of the rolling elements Alternative indication (examples) circle ball Wide rectangle roller narrow rectangle needle-roller, pin 1)This element may be shown inclined, depending on the type of the bearing. 2)Instead of the sh
41、ort continuous straight line, this variation may be used to represent the rolling element.ENISO8826-2:1997 BSI 05-1999 3 Table 2 Combination of elements in detailed simplified representation Load-bearing characteristics Bearing features Two rings Three rings One row Two rows One row Two rows Directi
42、on of load Radial Alignment no yes Axial Alignment no yes Radial and axial Alignment no yes NOTEThe rolling bearings shown in this table are always depicted on the drawing in the space above the bearing axis.ENISO8826-2:1997 4 BSI 05-1999 Table 3 Ball and roller bearings Detailed simplified represen
43、tation Application Ball bearings Roller bearings Illustration aand reference b Illustration aand reference b 3.1 Deep groove ball bearing, single row ISO 15, ISO 8443 Insert bearing ISO 9628 Cylindrical roller bearing, single row ISO 15 3.2 Deep groove ball bearing, double row ISO 15 Cylindrical rol
44、ler bearing, double row ISO 15 3.3 Spherical roller bearing, single row ISO 15 3.4 Ball bearing, self-aligning, double row ISO 15 Spherical roller bearing, double row ISO 15 3.5 Separable ball bearing, angular contact, single row ISO 582 Tapered roller bearing, angular contact, single row ISO 355 3.
45、6 Non-separable ball bearing, angular contact double rowENISO8826-2:1997 BSI 05-1999 5 Table 3 Ball and roller bearings Table 4 Needle roller bearings Detailed simplified representation Application Ball bearings Roller bearings Illustration aand reference b Illustration aand reference b 3.7 Separabl
46、e ball bearing, angular contact, double row, two-piece inner ring 3.8 Tapered roller bearing, angular contact, double row, two-piece inner ring: ISO 355 a An incomplete drawing, for information only. b If available. Detailed simplified representation Illustration aand reference b 4.1 Needle roller b
47、earing, single row ISO 1206 Drawn cup needle roller bearing without inner ring ISO 3245 Needle cage ISO 3030 4.2 Needle roller bearing, double row Drawn cup needle roller bearing without inner ring, double row Double row needle cage ISO 3031 4.3 Self-aligning needle roller bearings a An incomplete d
48、rawing, for information only. b If available.ENISO8826-2:1997 6 BSI 05-1999 Table 5 Combined bearings Table 6 Thrust bearings Detailed simplified representation Illustration a 5.1 Needle roller bearing and ball bearing, both radial contact 5.2 Needle roller bearing and ball bearing, both radial cont
49、act with two-piece inner ring 5.3 Needle roller bearing without inner ring with radial contact and ball bearing with axial contact 5.4 Needle roller bearing without inner ring with radial contact and cylindrical roller bearing with axial contact a An incomplete drawing, for information only. Detailed simplified representation Application Ball bearings Roller or needle roller bearings Illustration aand reference b Illustration aand reference b 6.1 Single-direc
