1、BRITISH STANDARD BSENISO 8826-1:1995 BS 308-1.12: 1995 Technical drawings Rolling bearings Part 1: General simplified representation The European Standard EN ISO8826-1:1995 has the status of a British StandardBSENISO8826-1:1995 This British Standard, having been prepared under the directionof the En
2、gineering SectorBoard, was published underthe authority of the Standards Board and comes into effect on 15 September1995 BSI 07-1999 The following BSI references relate to the work on this standard: Committee reference TDE/4 Draft announced in BSI News August 1995 ISBN 0 580 23777 X Committees respo
3、nsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee TDE/4, Engineering drawing practice, upon which the following bodies were represented: Atomic Weapons Establishment British Gas plc British Standards Society Drawing Office Material Manufac
4、turers and Dealers Association Electricity Association Gauge and Tool Makers Association HEVAC Association Institution of Chemical Engineers Institution of Engineering Designers Power Generation Contractors Association Society of British Aerospace Companies Ltd. University of Warwick Amendments issu
5、ed since publication Amd. No. Date CommentsBSENISO8826-1:1995 BSI 07-1999 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Introduction 3 1 Scope 3 2 Normative references 3 3 Method of representation 3 4 Hatching 4 Figure 1 3 Figure 2 3 Figure 3 4 Figure 4 4
6、List of references Inside back coverBSENISO8826-1:1995 ii BSI 07-1999 National foreword This Part of BSENISO8826 has been prepared by Technical Committee TDE/4 and is the English language version of ENISO8826-1:1995 Technical drawings Rolling bearings Part1: General simplified representation, publis
7、hed by the European Committee for Standardization (CEN). It is identical with ISO8826-1:1989, published by the International Organization for Standardization (ISO). This Part of BSENISO8826 partially supersedes BS308-1. It is envisaged that when the full range of European Standards on technical draw
8、ing is implemented BS308 will be withdrawn. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligation
9、s. Cross-reference Publication referred to Corresponding British Standard ISO 128:1982 BS308 Engineering drawing practice Part1:1993 Recommendations for general principles Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theEN ISO title page, pages2 to4, a
10、n inside back cover 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.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8826-1 January 1995 ICS 01.100.20; 21.1
11、00.20 Descriptors: Drawings, technical drawings, bearings, rolling bearings, graphic methods English version Technical drawings Rolling bearings Part 1: General simplified representation (ISO8826-1:1989) Dessins techniques Roulements Partie 1: Reprsentation simplifie gnrale (ISO8826-1:1989) Technisc
12、he Zeichnungen Wlzlager Teil 1: Allgemeine vereinfachte Darstellung (ISO8826-1:1989) This European Standard was approved by CEN on 1995-01-10. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a na
13、tional standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in
14、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 same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ic
15、eland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1995 All rights of reprodu
16、ction and communication in any form and by any means reserved in all countries to CEN and its members Ref. No. EN ISO 8826-1:1995 EENISO8826-1:1995 BSI 07-1999 2 Foreword The CEN Technical Board had decided to submit the document for formal vote. The result was positive. This European Standard shall
17、 be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by July1995. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France,
18、Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, UnitedKingdom.ENISO8826-1:1995 BSI 07-1999 3 Introduction ISO8826 provides rules for the simplified representation of rolling bearings. The principle of drawing practice is to depict the
19、object 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 t
20、hat either a general simplified representation or a detailed one may be used. A detailed representation shows more details of a rolling bearing, for example the number of rows or the possibility of alignment (see ISO8826-2). In order to avoid misunderstandings, only one kind of simplification, eithe
21、r the general or the detailed simplified representation, should be used on a drawing. 1 Scope This part of ISO8826 specifies the general simplified representation for rolling bearings. This representation should be used when it is not necessary to show the exact shape and details of the rolling bear
22、ing, for example in assembly drawings. 2 Normative reference The following standard contains provisions which, through reference in this text, constitute provisions of this part of ISO8826. At the time of publication, the editions indicated was valid. All standards are subject to revision, and parti
23、es to agreements based on this part of ISO8826 are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 128:1982, Technical drawings General principles
24、of presentation. 3 Method of representation 3.1 Lines All features of the simplified representation shall be drawn with the same line thickness used for all other visible outlines and edges on the drawing (linetype A, ISO128). 3.2 Scale The contour of the simplified representation shall be drawn to
25、the same scale as used for the drawing. 3.3 General simplified representation For general purposes (without specified load-bearing characteristics or bearing features, where it is not necessary to show the exact contour), the rolling bearing shall be represented by a square and a free-standing uprig
26、ht cross centred in the square (see Figure 1). The cross shall not touch the outlines. This representation shall be used in the space on one or both sides of the axis (see for example Figure 3, for the case of a horizontal axis). If it is necessary to show the exact contour of a rolling bearing, it
27、should be represented by the true outline of its cross-section, with the upright cross in a central position (see Figure 2). The cross shall not touch the outlines. Figure 1 Figure 2 ENISO8826-1:1995 4 BSI 07-1999 In cases where special attention needs to be drawn to the assembly of a rolling bearin
28、g, the desired requirements shall be given, for example by text or specification. 4 Hatching In simplified representations, hatching should be avoided. If, in special cases, greater clarity is necessary (for example in more detailed representations or illustrations for catalogues in accordance with
29、ISO8826-2), all parts of the bearing except the rolling elements, which have the same item reference, should be hatched, in the same direction and with continuous thin lines (type B, ISO128) (see Figure 4). Parts of bearings with different item references may be hatched in different directions and/o
30、r with different spacing. Figure 3 Figure 4 BSENISO8826-1:1995 BSI 07-1999 List of references See national foreword.BS EN ISO 8826-1:1995 BS308-1.12: 1995 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishSta
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