1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 4538-003:2010Aerospace series Bearings,spherical plain, in corrosionresisting steel with self-lubricating liner elevatedload under low oscillations Narrow series Dimensions
2、and loadsPart 003: Inch series with low frictioncoefficientBS EN 4538-003:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 4538-003:2010.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/12, Aerospace fasteners and fastening sys
3、tems.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 58635 4ICS 49.035Compliance with a Br
4、itish Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 November 2010.Amendments issued since publicationDate Text affectedBS EN 4538-003:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE N
5、ORM EN 4538-003 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 Srie Arosp
6、atiale - Rotules, en acier rsistant la corrosion garniture autolubrifiante charge leve sous faibles oscillations - Srie troite - Dimensions et charges -Partie 003 : Srie en inches avec coefficient bas de frictionLuft- und Raumfahrt - Gelenklager, aus korrosionsbestndigem Stahl mit selbstschmierender
7、 Beschichtung Hohe Belastung ohne Montagenut - Schmale Reihe - Mae und Belastungen - Teil 003: Inch Reihe mit niedrigen Reibungskoeffizienten 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 cond
8、itions 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 thr
9、ee 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
10、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.
11、EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR 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. Ref. No. EN 4538-003:2010: EBS EN 45
12、38-003:2010EN 4538-003:2010 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Symbols and definitions .44 Required characteristics .55 Designation . 116 Marking 117 Technical specification 11BS EN 4538-003:2010EN 4538-003:2010 (E) 3 Foreword This document (EN 4538-003:2010) has been p
13、repared 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 cou
14、ntries 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. Attentio
15、n 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
16、 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,
17、 Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 4538-003:2010EN 4538-003:2010 (E) 4 1 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
18、friction coefficient, narrow series, inch series. They shall be used in the temperature range 54 C to 120 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,
19、 the latest edition of the referenced document (including any amendments) applies. EN 2030, Steel FE-PM43 Hardened and tempered Bars D 150 mm Aerospace series1)EN 2133, Aerospace series Cadmium plating of steels with specified tensile strength 1 450 MPa, copper, copper alloys and nickel alloys EN 24
20、24:2008, 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
21、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)
22、3 Symbols and definitions For the purposes of this document, the symbols and definitions given in ISO 1132-1:2000 and the following apply. = 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
23、 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
24、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-Standar
25、dization (ASD-STAN) (www.asd-stan.org). 4) Published by: Society of Automotive Engineers (SAE) (www.sae.org). BS EN 4538-003:2010EN 4538-003:2010 (E) 5 C250 = Permissible dynamic radial load by 250 000 cycles. dmp = Single plane mean bore diameter deviation. Dmp = Single plane mean outside diameter
26、deviation. ds = Deviation of a single bore diameter. Ds = Deviation of a single outside diameter. The definition and vocabulary, see TR 4475. 4 Required characteristics 4.1 Configuration, dimensions, tolerances and mass See Figures 1 and 2 and Table 1. The dimensions are expressed in millimetres and
27、 apply after surface treatment. 4.2 Surface roughness See Figures 1 and 2. The values are expressed in micrometres and apply before surface treatment. BS EN 4538-003:2010EN 4538-003:2010 (E) 6 aTFE liner bCadmium plated cSet back dSpherical diameter Figure 1 Bearing without swaging grooves, code “S”
28、 BS EN 4538-003:2010EN 4538-003:2010 (E) 7 aSet back bSwaging groove cTFE liner dCadmium plated eSpherical diameter Figure 2 Bearing with swaging grooves, code “R” BS EN 4538-003:2010EN 4538-003:2010 (E) 8 Table 1 Dimensions, tolerances and mass Diameter code aDiameter d D Limit deviation B C d1K N
29、dmp ds Dmp Ds 0 0,06 0,1 min. Ref. + 0,1 0,2 03 4,826 14,287 0 0,013 0 0,013 0 0,013 + 0,003 0,015 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,
30、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 + 0,003 0,015 25,40 20,24 28,397 38
31、,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 aMass g/piece U r1r2 r3 r4 b1 2 P T max. max. min. 0,5 0,5 0 0,25 max. 03 0,12 0,127 to 0,381 0,13 to 0,25 0,254 to 0,508 0,12 10 30
32、 20 0,70 0,8 9 04 05 0,25 to 0,43 30 0,90 14 06 0,508 to 0,762 9 0,9 18 07 8 22 08 1,40 31 09 1,0 40 10 54 12 0,762 to 1,016 1,1 95 14 122 16 0,25 To 0,51 9 17620 6 1,50 240 24 405 28 658 aThe diameter code corresponds to bore diameter d in 1/16 inch. bThe acceptance value is the maximum value for t
33、he user. BS EN 4538-003:2010EN 4538-003:2010 (E) 9 4.3 Loads and starting torques See Table 2. Table 2 Loads and starting torques Diameter code Static limit loads akN Dynamic radial loads 250 000 cycles bProjected surface area c Starting torques Radial dCsAxial e, fCakN mm2Nm 03 11,1 f0,6 4,6 44,5 0
34、,06 to 0,56 04 21,1 1,9 6,3 61,3 0,11 to 0,90 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 0,23 to 1,50 24
35、522,6 89,9 156,3 1 517,3 28 687,1 121,0 205,5 1 994,8 aDefinition and testing for permissible and ultimate static loads according to EN 4540. bPermissible surface pressure 100 MPa. cThe projected surface area values are given to determine for each bearing size the duty cycle loads. dPermissible surf
36、ace pressure 344 MPa. eThese values apply to bearings without swaging groove. For installed bearings with swaging groove, the push-out loads may be smaller than these values. fPermissible surface pressure 138 MPa. BS EN 4538-003:2010EN 4538-003:2010 (E) 10 4.4 Materials Inner ring: steel EN 2030, ha
37、rdness 55 HRC to 62 HRC. Outer ring: steel EN 3161, hardness 28 HRC to 37 HRC before swaging. Liner: self-lubricating low friction, wear resistant material consistent with the requirements of EN 4540. 4.5 Surface treatment Without code: ball (inner ring) chrome plated on spherical diameter per AMS-Q
38、Q-C-320 class 2. 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, min. 8 m to 13 m thick. Cadmium plating of outer ring: 5 m to 8 m (0,2 in to 0,3 in) according to EN 2133. Cylindrical su
39、rface area and chamfers and both end surfaces at manufacturers option, followed by chromating. Swaging groove Code R: ball (inner ring) chrome plated on spherical diameter per AMS-QQ-C-320 class 2, min. 8 m to 13 m thick. Cylindrical surface area, broken angles and radii, respectively, as well as bo
40、th end surfaces up to the swaging grooves, followed by chromating. 4.6 Low friction coefficient See Table 3. Table 3 Low friction coefficient Friction coefficient a Temperature range Bearing pressure range max. C MPa 0,18 54 to 120 10 to 120 aThe proof of the value of friction coefficient has to be
41、furnished for the new bearing and after completion to lead the life time test. BS EN 4538-003:2010EN 4538-003:2010 (E) 11 5 Designation EXAMPLE Description block BEARING Identity block EN4538-003R04AZ Number of this standard Swaging groove code (see Figures 1 and 2) Diameter code (see Table 1) Techn
42、ology 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 users convenience. NOTE If necessary, the code I9005 shal
43、l be placed between the description block and the identity block. 6 Marking EN 2424:2008, style A. 7 Technical specification EN 4540. This page deliberately left blankThis page deliberately left blankBSI is the independent national body responsible for preparing British Standardsand other standards-
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