BS EN ISO 8741-1998 Grooved pins - Half-length reverse-taper grooved《带槽销 半长倒锥槽型销》.pdf

1、BRITISH STANDARD BS EN ISO 8741:1998 Grooved pins Half-length reverse-taper grooved The European Standard EN ISO 8741:1997 has the status of a British Standard ICS 21.060.50BSEN ISO8741:1998 This British Standard, having been prepared under the direction of the Engineering Sector Board, was publishe

2、d under the authority of the Standards Board and comes into effect on 15 May 1998 BSI 04-1999 ISBN 0 580 29068 9 National foreword This British Standard is the English language version of ENISO8741:1997. It is identical with ISO8741:1997. It supersedes BSEN28741:1992 which is withdrawn. The UK parti

3、cipation 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

4、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 subcommittee can be obtained on request to its secretary. Cross-referen

5、ces 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 found i

6、n 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 Standards ar

7、e 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, page ii, pages 1

8、 to 4 andaback 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 CommentsBSENISO8741:1998 BSI 04-1999 i Contents Page National

9、 foreword Inside front cover Foreword 2 Foreword ii Text of EN ISO 8741 1ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8741 November 1997 ICS 21.060 Supersedes EN 28741:1992 Descriptors: See ISO document English version Grooved pins Half-length reverse-taper grooved (ISO 8741:1997

10、) Goupilles canneles cannelures progressives renverses sur la moiti de la longueur non dbouchantes (ISO8741:1997) Steckkerbstifte (ISO 8741:1997) This European Standard was approved by CEN on18October1997. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the

11、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 European Standard exists in t

12、hree 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 national standards bodies of

13、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 Europisches Komitee fr Normung Cent

14、ral 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 8741:1997 EENISO8741:1997 BSI 04-1999 2 Foreword The text of the International Standard ISO8741:1997 has been prepared by

15、 Technical Committee ISO/TC2 “Fasteners” in collaboration with Technical Committee CEN/TC185 “Threaded and non-threaded mechanical fasteners and accessories”, the secretariat of which is held by DIN. This European Standard supersedes EN28741:1992. This European Standard shall be given the status of

16、a national standard, either by publication of an identical text or by endorsement, at the latest by May1998, and conflicting national standards shall be withdrawn at the latest by May1998. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countr

17、ies 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 The text of the International Stand

18、ard ISO8741:1997 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 5 Requirements and reference intern

19、ational standards 3 6 Designation 3 Annex ZA (normative) Normative references tointernational publicationswiththeir relevantEuropeanpublications 4 Figure 1 1 Table 1 Dimensions 2 Table 2 Requirements and reference International Standards 3ENISO8741:1997 ii BSI 04-1999 Foreword ISO (the International

20、 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 has been est

21、ablished 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 standardiz

22、ation. 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 least75% of the member bodies casting a vote. International Standard ISO 8741 was prepared by Technical Committee

23、ISO/TC2, Fasteners. This second edition cancels and replaces the first edition (ISO8741:1986), which has been technically revised. Descriptors: Fasteners, steel products, pins (mechanics), grooved pins, specifications, characteristics, dimensions, designation.ENISO8741:1997 BSI 04-1999 1 1 Scope Thi

24、s International Standard specifies the characteristics of half-length reverse taper 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 1 , from1,5mm to25mm inclusive. The displa

25、ced material to each side of the grooves forming an expanded diameter d 2which 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 clause4). 2 Normative references The following stan

26、dards 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 on this International Standard are encouraged to

27、 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, Corrosion-resistant stainless steel fasteners Par

28、t1: 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 Table 1. 1) To be published. (Revision of ISO 4042:1

29、989) 1)Chamfer permissible 2)The grooving angle 70 applies only to grooved pins made from steel as shown in clause 5. The grooving angle may be modified depending on resilience of material. Figure 1 ENISO8741:1997 2 BSI 04-1999 Table 1 Dimensions Dimensions in millimetres d 1 nom. 1,5 2 2,5 3 4 5 6

30、8 10 12 16 20 25 tol. h9 h11 a 0,2 0,25 0,33 0,4 0,5 0,63 0,8 1 1,2 1,6 2 2,5 3 Minimum shear strength, double aKN 1,6 2,84 4,4 6,4 11,3 17,6 25,4 45,2 70,4 101,8 181 283 444 l b Expanded diameter, d 2 cd nom. min. max. 0,05 0,1 8 7,75 8,25 1,6 10 9,75 10,25 2,6 3,1 4,15 5,15 12 11,5 12,5 2,1 14 13,

31、5 14,5 3,15 6,15 16 15,5 16,5 1,63 4,2 5,2 8,2 18 17,5 18,5 2,65 20 19,5 20,5 6,25 10,2 22 21,5 22,5 3,2 24 23,5 24,5 2,15 8,25 26 25,5 26,5 2,7 4,25 5,25 28 27,5 28,5 8,3 12,25 16,25 30 29,5 30,5 3,25 6,3 10,3 20,25 25,25 32 31,5 32,5 35 34,5 35,5 8,35 12,3 16,3 40 39,5 40,5 20,3 25,3 45 44,5 45,5

32、10,4 50 49,5 50,5 4,3 5,3 12,4 16,4 20,4 25,4 55 54,25 55,75 60 59,25 60,75 8,4 65 64,25 65,75 6,35 70 69,25 70,75 10,45 75 74,25 75,75 80 79,25 80,75 12,5 16,5 85 84,25 85,75 20,5 25,5 90 89,25 90,75 8,35 95 94,25 95,75 100 99,25 100,75 120 119,25 120,75 10,4 140 139,25 140,75 160 159,25 160,75 12,

33、45 16,45 180 179,25 180,75 20,45 25,45 200 199,25 200,75 a Applies only to grooved pins made from steel as shown in clause5. b The range of commercial lengths is between the stepped lines. c The expanded diameter d 2applies only to pins made from steel as shown in clause5. For other materials, for e

34、xample stainless steel, a reduction amount shall be subtracted from the given values and should be agreed between customer and supplier. d For testing d 2 , a GO/NO GO ring gauge should be used. 0,05 + 0ENISO8741:1997 BSI 04-1999 3 4 Application The diameter of the hole into which the groove pin is

35、to be inserted shall be equal to the nominal diameter d 1of the mating pin and to tolerance class H11. 5 Requirements and reference International Standards SeeTable 2. 6 Designation EXAMPLE 1 A half-length reverse taper grooved steel pin with nominal diameter d 1 =6mm and nominal lengthl =50mm is de

36、signated as follows: Grooved pin ISO87416 50St EXAMPLE 2 A half-length reverse taper grooved austenitic stainless steel pin of grade A1, with nominal diameter d 1 =6mm and nominal lengthl =50mm is designated as follows: Grooved pin ISO87416 50A1 Table 2 Requirements and reference International Stand

37、ards Steel (St) Austenitic stainless steel Material a Hardness 125 HV30 to 245 HV30 A1 in accordance with ISO 3506-1, hardness 210 HV30 to 280 HV30 Grooves Form of groove at the discretion of the supplier. Surface finish Plain, i.e. pins to be supplied in natural finish treated with a protective lub

38、ricant, unless otherwise specified by agreement between customer and supplier. Plain, i.e. pins to be supplied in natural finish. Preferred coatings are black oxide, phosphate coating or zinc plating with chromate conversion coating (see ISO 9717 and ISO4042). Other coatings as agreed between custom

39、er 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. Shear strength test The test shall be in accordance with ISO 8749. Acceptability The acceptance procedure is covered in ISO 3269. a O

40、ther materials as agreed between customer and supplier.ENISO8741:1997 4 BSI 04-1999 Annex ZA (normative) Normative references to international publications with their relevant European publications This European Standard incorporates by dated or undated reference, provisions from other publications.

41、 These normative references cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undat

42、ed 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 1992blankBS EN ISO 8741:1998 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body re

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