1、November 2010 Translation by DIN-Sprachendienst.English price group 19No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).I
2、CS 17.040.30!$l#J“1730039www.din.deDDIN EN ISO 286-1Geometrical product specification (GPS) ISO code system for tolerances on linear sizes Part 1: Basis of tolerances, deviations and fits (ISO 286-1:2010)English translation of DIN EN ISO 286-1:2010-11Geometrische Produktspezifikation (GPS) ISO-Toler
3、anzsystem fr Lngenmae Teil 1: Grundlagen fr Toleranzen, Abmae und Passungen (ISO 286-1:2010)Englische bersetzung von DIN EN ISO 286-1:2010-11Spcification gomtrique des produits (GPS) Systme de codification ISO pour les tolrances sur les tailles linaires Partie 1: Base des tolrances, carts et ajustem
4、ents (ISO 286-1:2010)Traduction anglaise de DIN EN ISO 286-1:2010-11SupersedesDIN ISO 286-1:1990-11www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.4611.10 DIN EN ISO 286-1:2010-11 2 A comma is used as the decimal marker. National f
5、oreword This standard has been prepared by Technical Committee ISO/TC 213 “Dimensional and geometrical product specifications and verification” in collaboration with Technical Committee CEN/TC 290 “Dimensional and geometrical product specification and verification” (Secretariat: AFNOR, France). The
6、responsible German body involved in its preparation was the Normenausschuss Technische Grundlagen (Fundamental Technical Standards Committee), Working Committee NA 152-03-02 AA CEN/ISO Geome-trische Produktspezifikation und -prfung. ISO 286 consists of the following parts, under the general title Ge
7、ometrical product specifications (GPS) ISO code system for tolerances on linear sizes: Part 1: Basis of tolerances, deviations and fits Part 2: Tables of standard tolerance grades and limit deviations for holes and shafts The DIN Standards corresponding to the International Standards and publication
8、s referred to in this document are as follows: ISO 1 DIN EN ISO 1 ISO 286-2 DIN EN ISO 286-2 ISO 1101 DIN EN ISO 1101 ISO 1302 DIN EN ISO 1302 ISO 2692 DIN EN ISO 2692 ISO 2768-1 DIN ISO 2768-1 ISO 3534-1 DIN ISO 3534-1 ISO 3534-2 DIN ISO 3534-2 ISO 4759-1 DIN EN ISO 4759-1 ISO 14253-1 DIN EN ISO 14
9、253-1 ISO 14405-1 DIN EN ISO 14405-1 ISO 14660-1 DIN EN ISO 14660-1 ISO 14660-2 DIN EN ISO 14660-2 ISO 17450-1 DIN EN ISO 17450-1 ISO/TS 17450-2 DIN EN ISO 17450-2 Amendments This standard differs from DIN ISO 286-1:1990-11 as follows: a) the text of the standard has been completely revised and term
10、s and definitions have been updated; b) ISO 14405 has been taken into account, thus the “envelope criterion” as the default association criterion has been changed to the “two-point size criterion”. DIN EN ISO 286-1:2010-11 3 Previous editions DIN 7150-1: 1938x-07, 1966-06 DIN 7151: 1936-10, 1964-11
11、DIN 7152: 1942-05, 1965-07 DIN 7172-1: 1965-06, 1986-03 DIN 7172-3: 1966-08, 1986-03 DIN 7182-1: 1940-09, 1957x-01, 1971-10, 1986-05 DIN ISO 286-1: 1990-11 National Annex NA (informative) Bibliography DIN EN ISO 1, Geometrical product specifications (GPS) Standard reference temperature for geometric
12、al product specifications and verification DIN EN ISO 286-2, Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts DIN EN ISO 1101, Geometrical Product Specifications (GPS) Geomet
13、rical tolerancing Tolerances of form, orientation, location and run-out DIN EN ISO 1302, Geometrical Product Specifications (GPS) Indication of surface texture in technical product documentation DIN EN ISO 2692, Geometrical product specifications (GPS) Geometrical tolerancing Maximum material requir
14、ement (MMR), least material requirement (LMR) and reciprocity requirement (RPR) DIN ISO 2768-1, General tolerances; tolerances for linear and angular dimensions without individual tolerance indications DIN ISO 3534-1, Statistics Vocabulary and symbols Part 1: General statistical terms and terms used
15、 in probability DIN ISO 3534-2, Statistics Vocabulary and symbols Part 2: Applied statistics DIN EN ISO 4759-1, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A, B and C DIN EN ISO 14253-1, Geometrical product specifications (GPS) Inspection by measurement of workpiece
16、s and measuring equipment Part 1: Decision rules for proving conformance or non-conformance with specifications DIN EN ISO 14405-1, Geometrical Product Specification (GPS) Dimensional Tolerancing Part 1: Linear Sizes DIN EN ISO 14660-1, Geometrical Product Specifications (GPS) Geometrical features P
17、art 1: General terms and definitions DIN EN ISO 286-1:2010-11 4 DIN EN ISO 14660-2, Geometrical Product Specifications (GPS) Geometrical features Part 2: Extracted median line of a cylinder and a cone, extracted median surface, local size of an extracted feature DIN EN ISO 17450-1, Geometrical produ
18、ct specifications (GPS) General concepts Part 1: Model for geometrical specification and verification DIN EN ISO 17450-2, Geometrical product specifications (GPS) General concepts Part 2: Basic tenets, specifications, operators and uncertainties EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN I
19、SO 286-1 April 2010 ICS 17.040.10 Supersedes EN 20286-1:1993English Version Geometrical product specifications (GPS) - ISO code system for tolerances on linear sizes - Part 1: Basis of tolerances, deviations and fits (ISO 286-1:2010) Spcification gomtrique des produits (GPS) - Systme de codification
20、 ISO pour les tolrances sur les tailles linaires - Partie 1: Base des tolrances, carts et ajustements (ISO 286-1:2010) Geometrische Produktspezifikation (GPS) - ISO-Toleranzsystem fr Lngenmae - Teil 1: Grundlagen fr Toleranzen, Abmae und Passungen (ISO 286-1:2010) This European Standard was approved
21、 by CEN on 6 February 2010. 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 national standard without any alteration. Up-to-date lists and bibliographical references concerning such national st
22、andards may be obtained on application to the CEN Management Centre 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 notifie
23、d to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembou
24、rg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights
25、of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 286-1:2010: EContents DIN EN ISO 286-1:2010-11 EN ISO 286-1:2010 (E) 2 Page Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 3.1 Basic terminology6 3.2 Ter
26、minology related to tolerances and deviations.6 3.3 Terminology related to fits9 3.4 Terminology related to the ISO fit system 13 4 ISO code system for tolerances on linear sizes.15 4.1 Basic concepts and designations15 4.2 Designation of the tolerance class (writing rules) .17 4.3 Determination of
27、the limit deviations (reading rules) 18 4.4 Selection of tolerance classes .30 5 ISO fit system.30 5.1 General30 5.2 Generics of fits.31 5.3 Determination of a fit.31 Annex A (informative) Further information about the ISO system of limits and fits and former practice .33 Annex B (informative) Examp
28、les of the use of ISO 286-1 to determine fits and tolerance classes .35 Annex C (informative) Relationship to the GPS matrix model40 Bibliography 42 Foreword This document (EN ISO 286-1:2010) has been prepared by Technical Committee ISO/TC 213 Dimensional and geometrical product specifications and v
29、erification” in collaboration with Technical Committee CEN/TC 290 “Dimensional and geometrical product specification and verification” the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by
30、endorsement, at the latest by October 2010, and conflicting national standards shall be withdrawn at the latest by October 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for
31、identifying any or all such patent rights. This document supersedes EN 20286-1:1993. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Re
32、public, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 286-1:2010 has
33、 been approved by CEN as a EN ISO 286-1:2010 without any modification. “DIN EN ISO 286-1:2010-11 EN ISO 286-1:2010 (E) 3 Introduction This International Standard is a geometrical product specification (GPS) standard and is to be regarded as a general GPS standard (see ISO/TR 14638). It influences ch
34、ain links 1 and 2 of the chain of standards on size in the general GPS matrix. For more detailed information on the relation of this part of ISO 286 to the GPS matrix model, see Annex C. The need for limits and fits for machined workpieces was brought about mainly by the requirement for interchange
35、ability between mass produced parts and the inherent inaccuracy of manufacturing methods, coupled with the fact that “exactness” of size was found to be unnecessary for the most workpiece features. In order that fit function could be satisfied, it was found sufficient to manufacture a given workpiec
36、e so that its size lay within two permissible limits, i.e. a tolerance, this being the variation in size acceptable in manufacture while ensuring the functional fit requirements of the product. Similarly, where a specific fit condition is required between mating features of two different workpieces,
37、 it is necessary to ascribe an allowance, either positive or negative, to the nominal size to achieve the required clearance or interference. This part of ISO 286 gives the internationally accepted code system for tolerances on linear sizes. It provides a system of tolerances and deviations suitable
38、 for two features of size types: “cylinder” and “two parallel opposite surfaces”. The main intention of this code system is the fulfilment of the function fit. The terms “hole”, “shaft” and “diameter” are used to designate features of size type cylinder (e.g. for the tolerancing of diameter of a hol
39、e or shaft). For simplicity, they are also used for two parallel opposite surfaces (e.g. for the tolerancing of thickness of a key or width of a slot). The pre-condition for the application of the ISO code system for tolerances on linear sizes for the features forming a fit is that the nominal sizes
40、 of the hole and the shaft are identical. The previous edition of ISO 286-1 (published in 1988) had the envelope criterion as the default association criterion for the size of a feature of size; however, ISO 14405-1 changes this default association criterion to the two-point size criterion. This mea
41、ns that form is no longer controlled by the default specification of size. In many cases, the diameter tolerances according to this part of ISO 286 are not sufficient for an effective control of the intended function of the fit. The envelope criterion according to ISO 14405-1 may be required. In add
42、ition, the use of geometrical form tolerances and surface texture requirements may improve the control of the intended function. DIN EN ISO 286-1:2010-11 EN ISO 286-1:2010 (E) 4 1 Scope This part of ISO 286 establishes the ISO code system for tolerances to be used for linear sizes of features of the
43、 following types: a) cylinder; b) two parallel opposite surfaces. It defines the basic concepts and the related terminology for this code system. It provides a standardized selection of tolerance classes for general purposes from amongst the numerous possibilities. Additionally, it defines the basic
44、 terminology for fits between two features of size without constraints of orientation and location and explains the principles of “basic hole” and “basic shaft”. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, on
45、ly the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 286-21), Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 2: Tables of standard tolerance grades and limit deviation
46、s for holes and shafts ISO 14405-1, Geometrical product specifications (GPS) Dimensional tolerancing Part 1: Linear sizes ISO 14660-1:1999, Geometrical Product Specifications (GPS) Geometrical features Part 1: General terms and definitions ISO 14660-2:1999, Geometrical Product Specifications (GPS) G
47、eometrical features Part 2: Extracted median line of a cylinder and a cone, extracted median surface, local size of an extracted feature 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 14405-1 and ISO 14660-1 and the following apply. It should be not
48、ed, however, that some of the terms are defined in a more restricted sense than in common usage. 1) To be published. (Revision of ISO 286-2:1988) DIN EN ISO 286-1:2010-11 EN ISO 286-1:2010 (E) 5 3.1 Basic terminology 3.1.1 feature of size geometrical shape defined by a linear or angular dimension wh
49、ich is a size ISO 14660-1:1999, definition 2.2 NOTE 1 The feature of size can be a cylinder, a sphere, two parallel opposite surfaces. NOTE 2 In former editions of international standards, such as ISO 286-1 and ISO/R 1938, the meanings of the terms “plain workpiece” and “single features” are close to that of “feature of size”. NOTE 3 For the purpose of ISO 286, only features of size type cylinder as well as type-two parallel opposite surfaces, defined by a
