1、ASD STANDARD NORME ASD ASD NORM prEN 4538-003 Edition P 1 February 2010 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONAvenue de Tervuren, 270 - B-1150 Brussels - Tel. 32 2 775 8126 - Fax. 32 2 775 8131 - www.asd-stan.orgICS: Descriptors: ENGLISH VERSION Aer
2、ospace 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 arospatiale Rotules, en acier rsistant la corrosion garniture autolubrifi
3、ante charge leve sous faibles oscillations Srie troite Dimensions et charges Partie 003: Srie en inches avec coefficient bas de friction Luft- und Raumfahrt Gelenklager, aus korrosionsbestndigem Stahl mit selbstschmierender Beschichtung Hohe Belastung, gering Oszillierend Schmale Reihe Mae und Belas
4、tungen Teil 003: Inch Reihe mit niedrigen Reibungskoeffizienten This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry.
5、 It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of
6、 the standard. After examination and review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to imp
7、lement the EN at national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 28 February 2010 Comments should be sent within six months after the date of publication to ASD-STAN Mechanical Domai
8、n Copyright 2010 by ASD-STAN prEN 4538-003:2010 (E) 2 Contents Page Foreword2 1 Scope 3 2 Normative references 3 3 Symbols and definitions .4 4 Required characteristics.4 5 Designation . 10 6 Marking 10 7 Technical specification 10 Foreword This standard was reviewed by the Domain Technical Coordina
9、tor of ASD-STANs Mechanical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 4538-003:2010 (E) 3 1 Scope This standard specifies the characteristics of bearing
10、s, 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. 2 Normative references The following referenced documents are indis
11、pensable 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 series1)EN 2133, Aerospa
12、ce series Cadmium plating of steels with specified tensile strength 1 450 MPa, copper, copper alloys and nickel alloys EN 2424, 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
13、 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, Rolling bearings Tolerances Part 1: Terms and definitions TR 4475, Aerospace series Bearings and mec
14、hanical transmissions for airframe applications Vocabulary 3)AMS-QQ-C-320, Chromium Plating (Electrodeposited) 4) 1) Published as ASD-STAN Standard at the date of publication of this standard. 2) Published as ASD-STAN Prestandard at the date of publication of this standard. 3) Published as ASD-STAN
15、Technical Report at the date of publication of this standard. 4) Published by: Society of Automotive Engineers (SAE), 400 Commonwealth Drive, Warrendale, PA 15096-0001, USA. prEN 4538-003:2010 (E) 4 3 Symbols and definitions For the purposes of this document, the symbols and definitions given in ISO
16、 1132-1 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 ring. Ca Permissible static axial load. Cs Permissible static radial load. C250 Permissible dynamic radial
17、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 Required characteristics 4.1 Configuration, dimens
18、ions, tolerances and mass See Figures 1 and 2 and Table 1. The dimensions are expressed in millimetres and apply after surface treatment. 4.2 Surface roughness See Figures 1 and 2. The values are expressed in micrometres and apply before surface treatment. prEN 4538-003:2010 (E) 5 0,25 Y0,2X0,8Y1 D0
19、,80,2 3,2B d dCb)0,80,8WTa)r3 x 45 2Wr1 x 45 2c)0,12 X15max.SKd)aTFE liner bCadmium plated cSet back dSpherical diameter Figure 1 Bearing without swaging grooves, code S prEN 4538-003:2010 (E) 6 aSet back bSwaging groove cTFE liner dCadmium plated eSpherical diameter Figure 2 Bearing with swaging gr
20、oove, code R prEN 4538-003:2010 (E) 7 Table 1 Dimensions, tolerances and mass Diameter d D Limit deviation B C d1K N Diameter code admp ds Dmp Ds 0 0,06 0,1 min. 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 14,2
21、8 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 22,22
22、5 39,687 0 0,013 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 0 0,013 0,003 0,015 0 0,013 0,003 0,015 38,89 33,45 50,710 64,00 68,33 U r1r2 r3 r4 b1 2 P
23、T Mass g/piece Diameter code amax. max. min. 0,5 0,5 0 0,25 max. 03 04 0,13 to 0,25 20 0,70 9 05 0,254 to 0,508 10 0,8 14 06 9 18 07 0,90 22 08 0,9 31 09 40 10 0,508 to 0,762 1,0 54 12 95 14 0,25 to 0,43 8 122 16 9 1,40 176 20 240 24 405 28 0,12 0,127 to 0,381 0,25 to 0,51 0,762 to 1,016 0,12 6 30 3
24、0 1,50 1,1 658 aThe diameter code corresponds to bore diameter d in 1/16 inch. bThe acceptance value is the maximum value for the user. prEN 4538-003:2010 (E) 8 4.3 Loads and starting torques See Table 2. Table 2 Loads and starting torques Static limit loads akN Dynamic radial loads 250 000 cycles b
25、Projected surface area c Starting torques Diameter code Radial dCsAxial e, fCakN mm2Nm 03 11,1 f0,6 4,6 44,5 0,06 to 0,56 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 4
26、05,6 14 183,0 34,5 54,7 531,3 16 245,3 44,3 73,4 712,4 0,11 to 0,90 20 337,2 61,9 100,8 978,9 24 522,6 89,9 156,3 1517,3 28 687,1 121,0 205,5 1994,80,23 to 1,50 aDefinition and testing for permissible and ultimate static loads according to EN 4540. bPermissible surface pressure 100 MPa. cThe project
27、ed surface area values are given to determine for each bearing size the duty cycle loads.dPermissible surface 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 surfac
28、e pressure 138 MPa. prEN 4538-003:2010 (E) 9 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: self-lubricating low friction, wear resistant material consistent with the requirements of EN 4540. 4.5 Surface
29、 treatment Without code: ball (inner ring) chrome plated on spherical diameter per AMS-QQ-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 pl
30、ating of outer ring: 5 m to 8 m (0.2 in to 0.3 in) according to EN 2133. Cylindrical surface area and chamfers and both end surfaces at manufatures 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
31、thick. Cylindrical surface area, broken angles and radii, respectively, as well as both 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 MP
32、a 0,18 54 to 120 10 to 120 aThe proof of the value of friction coefficient has to be furnished for the new bearing and after completion to lead the life time test. prEN 4538-003:2010 (E) 10 5 Designation EXAMPLE Description block BEARING Identity block EN4538-003R04AZNumber of this standard Swaging
33、groove code (see Figures 1 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 users convenience. NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. 6 Marking EN 2424, style A. 7 Technical specification EN 4540.
