Unknown raising standards worldwide™ NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication BS EN 4538 003 2010 Aerospace series — Bearings, spherical plain,[.]
BS EN 4538-003:2010 BSI Standards Publication Aerospace series — Bearings, spherical plain, in corrosion resisting steel with selflubricating liner elevated load under low oscillations — Narrow series — Dimensions and loads Part 003: Inch series with low friction coefficient NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW raising standards worldwide™ `,,```,,,,````-`-`,,`,,`,`,,` - Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy No reproduction or networking permitted without license from IHS Not for Resale BS EN 4538-003:2010 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 4538-003:2010 The UK participation in its preparation was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © BSI 2010 ISBN 978 580 58635 ICS 49.035 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2010 Amendments issued since publication Date `,,```,,,,````-`-`,,`,,`,`,,` - Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy No reproduction or networking permitted without license from IHS Text affected Not for Resale BS EN 4538-003:2010 EN 4538-003 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM November 2010 ICS 49.035 English Version Aerospace series - Bearings, spherical plain, in corrosion resisting steel with self-lubricating liner elevated load under low oscillations - Narrow series - Dimensions and loads - Part 003: Inch series with low friction coefficient Luft- und Raumfahrt - Gelenklager, aus korrosionsbeständigem Stahl mit selbstschmierender Beschichtung Hohe Belastung ohne Montagenut - Schmale Reihe - Maße und Belastungen - Teil 003: Inch Reihe mit niedrigen Reibungskoeffizienten Série Aérospatiale - Rotules, en acier résistant la corrosion garniture autolubrifiante charge élevée sous faibles oscillations - Série étroite - Dimensions et charges Partie 003 : Série en inches avec coefficient bas de friction This European Standard was approved by CEN on 30 July 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 standards 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 notified 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, 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: Avenue Marnix 17, B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members `,,```,,,,````-`-`,,`,,`,`,,` - Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy No reproduction or networking permitted without license from IHS Not for Resale Ref No EN 4538-003:2010: E BS EN 4538-003:2010 EN 4538-003:2010 (E) Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Symbols and definitions .4 4 Required characteristics .5 5 Designation 11 6 Marking 11 7 Technical specification 11 `,,```,,,,````-`-`,,`,,`,`,,` - Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy No reproduction or networking permitted without license from IHS Not for Resale BS EN 4538-003:2010 EN 4538-003:2010 (E) Foreword This document (EN 4538-003:2010) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-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 ASD, 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 May 2011, and conflicting national standards shall be withdrawn at the latest by May 2011 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 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 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 `,,```,,,,````-`-`,,`,,`,`,,` - Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy No reproduction or networking permitted without license from IHS Not for Resale BS EN 4538-003:2010 EN 4538-003:2010 (E) Scope This standard specifies the characteristics of bearings, spherical plain in corrosion resisting steel with self-lubricating liner, elevated load under low oscillations, with low friction coefficient, narrow series, inch series They shall be used in the temperature range – 54 °C to 120 °C 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 EN 2030, Steel FE-PM43 — Hardened and tempered — Bars D ≤ 150 mm — Aerospace series 1) EN 2133, Aerospace series — Cadmium plating of steels with specified tensile strength ≤ 450 MPa, copper, copper alloys and nickel alloys EN 2424:2008, Aerospace series — Marking of aerospace products EN 3161, Aerospace series — Steel FE-PM3801 (X5CrNiCu17-4) — Air melted — Solution treated and precipitation treated — Bar — a or D ≤ 200 mm — Rm ≥ 930 MPa EN 4540, Aerospace series — Bearings, spherical plain, in corrosion resisting steel with self-lubricating liner — Elevated load under low oscillations — Technical specification 2) ISO 1132-1:2000, Rolling bearings — Tolerances — Part 1: Terms and definitions TR 4475, Aerospace series — Bearings and mechanical transmissions for airframe applications — Vocabulary 3) AMS-QQ-C-320, Chromium Plating (Electrodeposited) 4) Symbols and definitions For the purposes of this document, the symbols and definitions given in ISO 1132-1:2000 and the following apply α = Maximum angle of tilt of the outer ring with respect to the inner ring, with the spherical surface of the outer ring being completely in contact with the inner ring Ca = Permissible static axial load Cs = Permissible static radial load 1) Published as ASD-STAN Standard at the date of publication of this standard by Aerospace and Defence Industries Association of Europe-Standardization (ASD-STAN) (www.asd-stan.org) 2) Published as ASD-STAN Prestandard at the date of publication of this standard by Aerospace and Defence Industries Association of Europe-Standardization (ASD-STAN) (www.asd-stan.org) 3) Published as ASD-STAN Technical Report at the date of publication of this standard by Aerospace and Defence Industries Association of Europe-Standardization (ASD-STAN) (www.asd-stan.org) 4) Published by: Society of Automotive Engineers (SAE) (www.sae.org) `,,```,,,,````-`-`,,`,,`,`,,` - Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy No reproduction or networking permitted without license from IHS Not for Resale BS EN 4538-003:2010 EN 4538-003:2010 (E) C250 = Permissible dynamic radial load by 250 000 cycles ∆dmp = Single plane mean bore diameter deviation ∆Dmp = Single plane mean outside diameter deviation ∆ds = Deviation of a single bore diameter ∆Ds = Deviation of a single outside diameter The definition and vocabulary, see TR 4475 4.1 Required characteristics Configuration, dimensions, tolerances and mass 4.2 Surface roughness See Figures and The values are expressed in micrometres and apply before surface treatment Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy No reproduction or networking permitted without license from IHS `,,```,,,,````-`-`,,`,,`,`,,` - See Figures and and Table The dimensions are expressed in millimetres and apply after surface treatment Not for Resale BS EN 4538-003:2010 EN 4538-003:2010 (E) a TFE liner b Cadmium plated c Set back d Spherical diameter Figure — Bearing without swaging grooves, code “S” `,,```,,,,````-`-`,,`,,`,`,,` - Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy No reproduction or networking permitted without license from IHS Not for Resale BS EN 4538-003:2010 EN 4538-003:2010 (E) a Set back b Swaging groove c TFE liner d Cadmium plated e Spherical diameter Figure — Bearing with swaging grooves, code “R” `,,```,,,,````-`-`,,`,,`,`,,` - Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy No reproduction or networking permitted without license from IHS Not for Resale BS EN 4538-003:2010 EN 4538-003:2010 (E) Table — Dimensions, tolerances and mass Diameter Diameter code a d Limit deviation D ∆dmp ∆ds ∆Dmp ∆Ds B C d1 K N − 0,06 ± 0,1 Ref + 0,1 − 0,2 03 4,826 14,287 7,14 5,54 7,442 10,31 12,70 04 6,350 16,667 8,71 6,35 9,245 12,70 15,09 05 7,937 19,050 9,53 7,14 10,642 14,28 16,51 06 9,525 20,637 10,31 7,93 12,065 15,88 18,08 07 11,113 23,017 11,10 8,71 13,462 17,50 20,47 08 12,700 25,400 12,70 9,91 15,240 19,84 22,25 09 14,288 27,780 14,28 11,10 17,018 22,23 24,64 10 15,875 30,163 15,88 12,70 18,770 24,59 27,00 12 19,050 36,513 19,05 15,06 23,368 30,15 33,35 14 22,225 39,687 22,23 17,86 24,892 33,30 36,53 16 25,400 44,450 25,40 20,24 28,397 38,10 41,30 20 31,750 50,800 27,76 23,93 36,703 45,24 47,70 24 38,100 61,912 33,32 28,83 47,500 57,15 58,85 28 44,450 71,437 38,89 33,45 50,710 64,00 68,33 Diameter code a U r1 − 0,013 − 0,013 − 0,013 + 0,003 − 0,015 r2 r3 r4 max max 0,13 to 0,25 03 04 05 0,254 to 0,508 b θ1 θ2 P T Mass g/piece ± 0,5° ± 0,5° − 0,25 max ≈ 20° 0,70 08 0,12 0,127 to 0,381 0,25 to 0,43 0,508 to 0,762 0,8 0,90 18 0,9 0,12 8° 30° 1,0 30° 1,40 54 122 16 0,25 To 0,51 0,762 to 1,016 9° 6° 28 1,1 1,50 176 240 405 658 a The diameter code corresponds to bore diameter d in 1/16 inch b The acceptance value is the maximum value for the user `,,```,,,,````-`-`,,`,,`,`,,` - Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy No reproduction or networking permitted without license from IHS 40 95 14 24 22 31 12 20 14 9° 07 10 α 10° 06 09 + 0,003 − 0,015 Not for Resale BS EN 4538-003:2010 EN 4538-003:2010 (E) 4.3 Loads and starting torques See Table Table — Loads and starting torques Static limit loads a Diameter code kN Radial d Cs Axial e, f Ca Dynamic radial loads 250 000 cycles b Projected surface area c kN mm Starting torques Nm 0,06 to 0,56 `,,```,,,,````-`-`,,`,,`,`,,` - 03 11,1 f 0,6 4,6 44,5 04 21,1 1,9 6,3 61,3 05 29,0 3,1 8,7 84,5 06 33,6 4,9 10,0 97,6 07 41,6 6,2 12,5 121,0 08 55,5 9,3 16,6 161,2 09 69,3 13,3 20,7 201,5 10 93,3 17,4 27,9 270,9 12 139,7 24,5 41,7 405,6 14 183,0 34,5 54,7 531,3 16 245,3 44,3 73,4 712,4 20 337,2 61,9 100,8 978,9 24 522,6 89,9 156,3 517,3 28 687,1 121,0 205,5 994,8 0,11 to 0,90 a Definition and testing for permissible and ultimate static loads according to EN 4540 b Permissible surface pressure 100 MPa c The projected surface area values are given to determine for each bearing size the duty cycle loads d Permissible surface pressure 344 MPa 0,23 to 1,50 e These values apply to bearings without swaging groove For installed bearings with swaging groove, the push-out loads may be smaller than these values f Permissible surface pressure 138 MPa Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy No reproduction or networking permitted without license from IHS Not for Resale BS EN 4538-003:2010 EN 4538-003:2010 (E) 4.4 Materials Inner ring: steel EN 2030, hardness 55 HRC to 62 HRC Outer ring: steel EN 3161, hardness 28 HRC to 37 HRC before swaging Liner: 4.5 self-lubricating low friction, wear resistant material consistent with the requirements of EN 4540 Surface treatment Without code: ball (inner ring) chrome plated on spherical diameter per AMS-QQ-C-320 class Code Z: cadmium plating on outer race per EN 2133 Without swaging groove Code S: ball (inner ring) chrome plated on spherical diameter per AMS-QQ-C-320 class 2, µm to 13 µm thick Cadmium plating of outer ring: µm to µm (0,2 µin to 0,3 µin) according to EN 2133 Cylindrical surface area and chamfers and both end surfaces at manufacturer’s option, followed by chromating Swaging groove 4.6 `,,```,,,,````-`-`,,`,,`,`,,` - Code R: ball (inner ring) chrome plated on spherical diameter per AMS-QQ-C-320 class 2, µm to 13 µm thick Cylindrical surface area, broken angles and radii, respectively, as well as both end surfaces up to the swaging grooves, followed by chromating Low friction coefficient See Table Table — Low friction coefficient Friction coefficient a Temperature range Bearing pressure range µ max °C MPa 0,18 − 54 to 120 10 to 120 a The proof of the value of friction coefficient has to be furnished for the new bearing and after completion to lead the life time test 10 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy No reproduction or networking permitted without license from IHS Not for Resale BS EN 4538-003:2010 EN 4538-003:2010 (E) Designation EXAMPLE Description block Identity block BEARING EN4538-003R04AZ Number of this standard Swaging groove code (see Figures and 2) Diameter code (see Table 1) Technology code Surface treatment code (see 4.5) (Code or without code) Where the following technology codes are applied: – Code A, bonded liner technology; – Code B, injected or moulded liner technology; – Without code, both technologies can be used at user’s convenience NOTE If necessary, the code I9005 shall be placed between the description block and the identity block Marking EN 2424:2008, style A Technical specification EN 4540 11 `,,```,,,,````-`-`,,`,,`,`,,` - Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy No reproduction or networking permitted without license from IHS Not for Resale `,,```,,,,````-`-`,,`,,`,`,,` - Copyright British Standards Institution Provided by IHS under license with BSI - 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