1、BRITISH STANDARD BS EN ISO 8743:1998 Grooved pins Half-length centre grooved The European Standard EN ISO 8743:1997 has the status of a British Standard ICS 21.060.50BSEN ISO 8743:1998 This British Standard, having been prepared under the directionof the Engineering SectorBoard, was published undert
2、he authority of the Standards Board and comes intoeffect on 15 May 1998 BSI 04-1999 ISBN 0 580 29064 6 National foreword This British Standard is the English language version of EN ISO 8743:1997. It is identical with ISO 8743:1997. It supersedes BS EN 28743:1992 which is withdrawn. The UK participat
3、ion in its preparation was entrusted by Technical Committee FME/9, Bolts, nuts and accessories, to Subcommittee FME/9/6, General purpose fasteners and accessories, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any e
4、nquiries on the interpretation, or proposals for change, and keep the UKinterests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references At
5、tention 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 international or European publications referred to in this docume
6、nt may be found 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 Bri
7、tish Standards 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, theEN ISO title page, page 2, the ISO title page,
8、 page ii, pages 1 to 4 and aback 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 CommentsBSEN ISO 8743:1998 BSI 04-1999 i Co
9、ntents Page National Foreword Inside front cover Foreword 2 Foreword ii Text of ISO 8743 1ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8743 November 1997 ICS 21.060 Supersedes EN 28743:1992 Descriptors: See ISO document English version Grooved pins Half-length centre grooved (ISO
10、 8743:1997) Goupilles canneles cannelures centrales constantes sur la moiti de la longueur non dbouchantes (ISO8743:1997) Knebelkerbstifte mit langen Kerben (ISO 8743:1997) This European Standard was approved by CEN on 18 October 1997. CEN members are bound to comply with the CEN/CENELEC Internal Re
11、gulations 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 application to the Central Secretariat or to any CEN member. This
12、 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 same status as the official versions. CEN members are the
13、 national standards bodies of Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europ
14、isches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 8743:1997 EEN ISO 8743:1997 BSI 04-1999 2 Foreword The text of the International Standard I
15、SO8743:1997 has been prepared by Technical Committee ISO/TC 2 “Fasteners” in collaboration with Technical Committee CEN/TC 185 “Threaded and non-threaded mechanical fasteners and accessories”, the secretariat of which is held by DIN. This European Standard supersedes EN28743:1992. This European Stan
16、dard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 1998, and conflicting national standards shall be withdrawn at the latest by May 1998. According to the CEN/CENELEC Internal Regulations, the national standards o
17、rganizations 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 the United Kingdom. Endorsement notice
18、 The text of the International Standard ISO8743:1997 was 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 1 Scope 1 2 Normative references 1 3 Dimensions 1 4 Application 3
19、 5 Requirements and reference International Standards 3 6 Designation 3 Annex ZA (normative) Normative references to international publications with their relevant European publications 4 Figure 1 1 Table 1 Dimensions 2 Table 2 Requirements and reference International Standards 3EN ISO 8743:1997 ii
20、BSI 04-1999 Foreword 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 member body interested in a subject f
21、or 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 Electrotechnical Commission (IEC) on
22、 all matters of electrotechnical 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
23、ISO 8743 was prepared by Technical Committee ISO/TC 2, Fasteners. This second edition cancels and replaces the first edition (ISO 8743:1986), which has been technically revised. Descriptors: Fasteners, steel products, pins (mechanics), grooved pins, specifications, characteristics, dimensions, desig
24、nation.EN ISO 8743:1997 BSI 04-1999 1 1 Scope This International Standard specifies the characteristics of half-length centre grooved pins made of steel or austenitic stainless steel which have three equally spaced grooves impressed longitudinally on their exterior surface, with nominal diameter, d
25、1 , from1,5mm to 25 mm inclusive. The displaced material to each side of the grooves forming an expanded diameter, d 2 , which is larger than the nominal diameter d 1will cause a non-positive locking fit when these grooved pins are forced into a drilled hole equal to the nominal diameter d 1(see cla
26、use4). 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based
27、on this International Standard 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 3269:1988, Fasteners Acceptance inspection. ISO 3506-1:1997, C
28、orrosion-resistant stainless steel fasteners Part 1: Bolts, screws and studs. ISO 4042: 1) , Fasteners Electroplated coatings. ISO 8749:1986, Pins and grooved pins Shear test. ISO 9717:1990, Phosphate conversion coatings for metals Method of specifying requirements. 3 Dimensions See Figure 1 and Tab
29、le 1. 1) To be published. (Revision of ISO 4042:1989) Figure 1 EN ISO 8743:1997 2 BSI 04-1999 Table 1 Dimensions Dimensions in millimetres d 1 nom. 1,5 2 2,5 3 4 5 6 8 10 12 16 20 25 tol. h9 h11 a . 0,2 0,25 0,3 0,4 0,5 0,63 0,8 1 1,2 1,6 2 2,5 3 Minimum shear strength, double a kN 1,6 2,84 4,4 6,4
30、11,3 17,6 25,4 45,2 70,4 101,8 181 283 444 l b Expanded diameter, d 2 ab nom. min. max. 0,05 0,1 8 7,75 8,25 10 9,75 10,25 1,6 12 11,5 12,5 14 13,5 14,5 2,6 3,1 16 15,5 16,5 1,63 2,1 18 17,5 18,5 4,15 5,15 20 19,5 20,5 3,15 22 21,5 22,5 24 23,5 24,5 2,65 6,15 26 25,5 26,5 2,15 4,2 5,2 28 27,5 28,5 8
31、,2 30 29,5 30,5 3,2 6,25 32 31,5 32,5 8,25 35 34,5 35,5 4,25 10,2 40 39,5 40,5 5,25 45 44,5 45,5 8,3 12,25 16,25 20,25 25,25 50 49,5 50,5 6,3 10,3 55 54,25 55,75 4,3 12,3 16,3 60 59,25 60,75 5,3 8,35 20,3 25,3 65 64,25 65,75 10,4 70 69,25 70,75 12,4 16,4 75 74,25 75,75 6,35 80 79,25 80,75 20,4 25,4
32、85 84,25 85,75 8,4 90 89,25 90,75 10,45 95 94,25 95,75 100 99,25 100,75 120 119,25 120,75 12,5 16,5 140 139,25 140,75 20,5 25,5 160 159,25 160,75 10,4 180 179,25 180,75 200 199,25 200,75 a Applies only to grooved pins made from steel as shown in clause5. b The range of commercial lengths is between
33、the stepped lines. a The expanded diameter d 2 , applies only to pins made from steel as shown in clause 5. For other materials, for example stainless steel, a reduction amount shall be subtracted from the given values and should be agreed between customer and supplier. b For testing d 2 , a GO/NO G
34、O ring gauge should be used.0,05 + 0EN ISO 8743:1997 BSI 04-1999 3 4 Application The diameter of the hole into which the groove pin is to be inserted shall be equal to the nominal diameter d 1 , of the mating pin and to tolerance classH11. 5 Requirements and reference International Standards See Tab
35、le 2. 6 Designation EXAMPLE 1 A half-length centre grooved steel pin with nominal diameter d 1=6mm and nominal length l =50mm is designated as follows: Grooved pin ISO 8743 6 50 St EXAMPLE 2 A half-length centre grooved austenitic stainless steel pin of grade A1, with nominal diameter d 1 =6mm and n
36、ominal length l =50mm is designated as follows: Grooved pin ISO 8743 6 50 A1 Table 2 Requirements and reference International Standards Material a Steel (St) Austenitic stainless steel Hardness 125 HV30 to 245 HV30 A1 in accordance with ISO 3506-1, hardness210 HV30 to 280 HV30 Grooves Form of groove
37、 at the discretion of the supplier. Surface finish Plain, i.e. pins to be supplied in natural finish treated with a protective lubricant, unless otherwise specified by agreement between customer and supplier. Plain, i.e. pins to be supplied in natural finish. Preferred coatings are black oxide, phos
38、phate coating or zinc plating with chromate conversion coating (see ISO 9717 and ISO 4042). Other coatings as agreed between customer and supplier. All tolerances shall apply prior to the application of a plating or coating. Workmanship Pins shall be free of irregularities or detrimental defects. Sh
39、ear strength test The test shall be in accordance with ISO8749. Acceptability The acceptance procedure is covered in ISO 3269. a Other materials as agreed between customer and supplier.EN ISO 8743:1997 4 BSI 04-1999 Annex ZA (normative) Normative references to international publications with their r
40、elevant European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or rev
41、isions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. Publication Year Title EN Year ISO 8749 1986 Pins and grooved pins Shear test EN 28749 19925 bl
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