BS-EN-2588-2006.pdf

BRITISH STANDARD AEROSPACE SERIES BS EN 2588:2006 Bearings, spherical plain in corrosion resisting steel with assembly slots Dimensions and loads The European Standard EN 2588:2006 has the status of a British Standard ICS 49.035 ? Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 07:57:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2588:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2006 © BSI 2006 ISBN 0 580 48510 2 National foreword This British Standard is the official English language version of EN 2588:2006. It supersedes BS EN 2588:1992 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 9 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 07:57:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 2588 May 2006 ICS 49.035Supersedes EN 2588:1988 English Version Aerospace series - Bearings, spherical plain in corrosion resisting steel with assembly slots - Dimensions and loads Série aérospatiale - Rotules lisses en acier résistant à la corrosion avec encoches d'assemblage - Dimensions et charges Luft- und Raumfahrt - Gelenklager aus korrosionsbeständigem Stahl mit Einführnut - Maße und Belastungen This European Standard was approved by CEN on 13 January 2006. 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 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 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, Cyprus, Czech Republic, 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 United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels © 2006 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2588:2006: E Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 07:57:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 Contents Page Foreword 3 1 Scope.4 2 Normative references .4 3 Terms and definitions.4 4 Symbols and abbreviations5 5 Required characteristics 5 5.1 Configuration, dimensions and masses .5 5.2 Surface roughness5 5.3 Clearances and loads.7 5.4 Materials 8 5.5 Surface treatment8 6 Designation .9 7 Marking9 8 Technical specification.9 EN 2588:2006 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 07:57:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 3 Foreword This European Standard (EN 2588:2006) has been prepared by the European Association of Aerospace Manufacturers - Standardization (AECMA-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2006, and conflicting national standards shall be withdrawn at the latest by November 2006. 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 identifying any or all such patent rights. This European Standard supersedes EN 2588:1988. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, 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. EN 2588:2006 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 07:57:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 1 Scope This standard specifies the characteristics of spherical plain bearings in corrosion resisting steel, with assembly slots, metric series, with or without lubrication holes and groove, intended for use in fixed or moving parts of aircraft structure and control mechanisms. They may be used in the temperature range from 54 °C to 150 °C. However, as they are lubricated with the following greases (see EN 2337): ester type very high pressure grease (code letter A), operating range from 73 °C to 121 °C or, synthetic hydrocarbon type very high pressure grease general purpose (code letter B), operating range from 54 °C to 177 °C. Their field of application when lubricated with grease code letter A is limited to 121 °C. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 1132-1, Rolling bearings Tolerances Part 1: Terms and definitions. ISO 8075, Aerospace Surface treatment of hardenable stainless steel parts. EN 2030, Steel FE-PM43 Hardened and tempered Bars D 150 mm Aerospace series. 1) EN 2337, Aerospace series Spherical plain bearings Technical specification. EN 2424, Aerospace series Marking of aerospace products. EN 2491, Aerospace series Molybdenum disulphide dry lubricants Coating methods. 3 Terms and definitions For the purposes of this standard, the terms and definitions given in ISO 1132-1 apply. 1) Published as AECMA Standard at the date of publication of this standard. EN 2588:2006 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 07:57:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 5 4 Symbols and abbreviations The following symbols for tolerances are used: dmp : single plane mean bore diameter deviation ds : deviation of a single bore diameter Dmp : single plane mean outside diameter deviation Ds : deviation of a single outside diameter : angle of tilt of the outer ring with respect to the inner ring, the spherical surface of the outer ring being completely in contact with the inner ring 5 Required characteristics 5.1 Configuration, dimensions and masses According to Figures 1 and 2 and Tables 1 and 2. The dimensions are expressed in millimetres and apply after surface treatment. 5.2 Surface roughness According to Figure 1. The values are expressed in micrometres and apply before surface treatment. a 0,4 for spherical surface with dry-film lubricant; 0,2 for non-coated surface Figure 1 EN 2588:2006 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 07:57:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 6 Code letter E: Bearing without lubrication holes and groove Code letter F: Bearing with lubrication holes and groove on inner ring Code letter G: Bearing with lubrication holes and groove on outer ring Figure 2 Table 1 d B C D Tolerances µm d1 K r1 r2 ° Mass code number nom. 0 0,06 0 0,25 dmp ds DmpDs min. min.a g 05 5 06 6 6 4 14 8 10 0,3 to 0,6 0,4 to 0,7 13 4 08 8 8 5 16 8 0 13 5 + 10 13 15 7 10 10 9 6 19 10 2 + 13 16 0,5 to 0,8 12 11 12 12 10 7 22 15 18 11 15 15 15 12 9 26 9 0 15 6 + 18 22 0,5 to 0,8 0,6 to 1 8 28 17 17 14 10 30 8 0 11 3 + 20 25 10 44 20 20 16 12 35 24 29 9 60 25 25 20 16 42 29 36 7 105 30 30 22 18 47 10 0 13 3 + 11 0 19 8 + 34 41 145 35 35 25 20 55 39 47 0,7 to 1,1 0,9 to 1,3 6 210 40 40 28 22 62 45 53 285 45 45 32 25 68 50 60 7 420 50 50 35 28 75 12 0 15 3 + 13 0 23 10 + 55 66 515 60 60 44 36 90 66 80 1 050 70 70 49 40 105 77 92 1 510 80 80 55 45 120 15 0 19 4 + 15 0 28 13 + 88 105 1,2 to 1,7 1,4 to 1,8 6 2 250 a Maximum values for the user EN 2588:2006 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 07:57:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 7 Table 2 d E a E1 a F F1 F2 G G1 G2 code number nom. ± 0,2 ± 0,2 ± 0,2 ± 0,2 ± 0,2 + 0,1 0 + 0,1 0 + 0,1 0 05 5 06 6 08 8 10 10 12 12 Without lubrication holes and groove 15 15 1,5 2,2 1,75 17 17 2,8 2,5 20 20 2 2,9 3 3 1 2 25 25 1,5 2 4 2,5 30 30 4,5 35 35 2 2,5 5 40 40 5,5 3 45 45 4 6,2 1,5 3,5 50 50 2,5 2,5 4 5 3 7 2 4 60 60 6 9 2,5 5 70 70 3 4,5 10 5,5 80 80 4 3 5 8 4 12 3,5 7,5 a Three holes at intervals of 120° on the periphery. 5.3 Clearances and loads See Table 3. EN 2588:2006 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 07:57:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 8 Table 3 Internal clearances µm Permissible static loads kN axial radial max. d Code number normal code letter N reduced code letter P normal code letter N normal code letter P radial a Cs axial b Ca 05 12 0,68 06 16 0,9 08 26 1,5 10 45 2,3 12 60 3,2 15 90 5,55 17 110 6,95 20 160 9,85 25 270 18,15 30 30 to 60 1 to 30 15 8 380 25,16 35 500 30 40 630 36,66 45 820 48,1 50 40 to 80 1 to 40 20 10 1 000 60,96 60 1 600 102,76 70 2 000 127,8 80 50 to 100 1 to 50 25 15 2 600 182,8 a These loads can only be applied at 90° with respect to the opening of the slots. b These loads shall be applied to the outer ring from the side opposite to the slots. 5.4 Materials Inner ring: according to EN 2030, 55 HRC to 62 HRC Outer ring: according to EN 2030, 58 HRC to 58 HRC 5.5 Surface treatment Dry-film lubricant on the spherical surface of inner or outer ring (antiscoring treatment) applied according to EN 2491. Passivation according to ISO 8075: code letter T Without surface treatment (passivation): without code letter EN 2588:2006 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 07:57:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 9 6 Designation EXAMPLE Description block PLAIN BEARING Identity block EN2588AP15ET Number of this standard Grease code letter (see Clause 1) Internal clearances code letter (see Table 3) Diameter code number d (see Table 1) Lubrication holes and grooves code letter (see Figure 2) Surface treatment code letter (see 5.5) NOTE If necessary, the code 9005 shall be placed between the description block and the identity block. 7 Marking EN 2424, style A The marking position is at the manufacturer's option. 8 Technical specification See EN 2337. EN 2588:2006 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 07:57:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 2588:2006 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400. 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