1、AECMA STANDARD prEN 4041 NORME AECMA Edition P 1 1 1 AECMA NORM August 1997 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) I Gulledelle 94 - 8-1 200 BRUXELLES - Tel. I+32) 2 775 81 10 - Fax. (+321 2 775 81 11 I ICs : Descriptors : J Nota - Extra copies can be supplied by B.N.A
2、.E. - Technopolis 54 199, rue Jean-Jacques Rousseau - 921 38 ISSY-LES-MOULINEAUX CEDEX Edition approved for publication Comments should be sent within six months CI Chairman after the date of publication to ENGLISH VERSION Aerospace series Bearings, airframe rolling Rigid single row ball bearings in
3、 corrosion resisting steel, with extended inner ring and flanged alignment bush Dimensions and loads Srie arospatiale Roulements pour structures daronefs Roulements en acier rsistant la corrosion, rigides, une range de billes, avec bague intrieure jupe et bague dalignement collerette Dimensions et c
4、harges Luft- und Raumfahrt Flugwerklager Einreihige Rillenkugellager aus korrosionsbectndigem Stahl mit einseitig verlngertem Innenring und selbsteinstellendem Flansch Mae und Belastungen This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA (The European Associatio
5、n of Aerospace Industries). It is published on green paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned Technical Committee following comment by the Member countries. Subsequent to the publication of this Prestandard, the technical content shall no
6、t be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and signature of the AECMA Standard Checking Centre (NPS) and formal agreement of the Official Services of the Member countries it will be submitted
7、 as a draft European Standard to CEN (European Committee for Standardization) for formal vote. 1997-08-29 AECMA Gulledelle 94 6-1 200 BRUXELLES Mr streicher I l I I aecma 1997 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for Re
8、saleNo reproduction or networking permitted without license from IHS-,-Page 3 prEN 4041 : 1995 1 Scope This standard specifies the character.istics of rigid single row ball bearings in corrosion resisting steel, with an extended inner ring and a solid or lightweight flanged alignment bush, designed
9、to withstand only slow rotations and slight oscillations under load. They are intended for use in airframe fixed and moving elements and in flight control linkages. The bearings defined in this standard shall be used in the temperature range -54 OC to 150 “c. However, as they are lubricated with the
10、 following greases (see EN 2337): - ester type extreme pressure grease (code AI, operating range -73 OC to 121 OC or - synthetic hydrocarbon type extreme pressure grease (code BI, operating range -54 OC to 177 OC, their field of application when lubricated with code A grease shall be limited to 121
11、aC. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or re
12、visions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. IS0 11 32 Rolling bearings - Tolerances - Definitions IS0 8075 Aerospace - Surface treatment o
13、f hardenable stainless steel parts EN 2030 Aerospace series - Steel FE-PM43 - Hardened and tempered - Bars D I 150 mm) EN 2226 Aerospace series - Steel FE-PM43 - Hardened and tempered - Hand and die forgings D, I 150 mm) EN 2424 Aerospace series - Marking of aerospace products EN 2502 Aerospace seri
14、es - Steel FE-PM66 - 930 MPa 5 R, I 1080 MPa - Bars D, 5 150 mm) EN 2503 Aerospace series - Steel FE-PM66 - 930 MPa 5 R, I 1080 MPa - Forgings D, 5 150 mm) EN 2539 Aerospace series - Steel FE-PM61 - Solution annealed and precipitation hardened - R, 2 960 MPa - Bars D, I 120 mm2) EN 3727 Aerospace se
15、ries - Bearing, airframe rolling, rigid single row bail bearings with flanged alignment bush - Technical specification2) 3 Definition Bearing, full complement of balls (without retainer), with filling slot. 1 Published as an AECMA Standard at the date of publication of this standard. 1 Published as
16、an AECMA Prestandard at the date of publication of this standard. Previous page is blank Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,- STDmAECMA PREN
17、404L-ENGL 1777 1012311 0013337 73T Page 4 prEN4041 : 1995 4 Symbols The tolerance definitions are given in IS0 1 132. single plane mean bore diameter deviation deviation of a single bore diameter axial internal clearance radial internal clearance assembled bearing inner ring face runout with raceway
18、 assembled bearing outer ring face runout with raceway radial runout of assembled bearing inner ring radial runout of assembled bearing outer ring permissible static axial load permissible static radial load 5 Required characteristics 5.1 Configuration, dimensions, limit deviations, clearances, torq
19、ues and masses See figures 1 to 4 and table 1. The dimensions are expressed in millimetres, apply after surface treatment. The bearings are fitted either with seals or shields; the flanged alignment bush is either solid or lightweight. 5.2 Loads See tables 2 and 3. 5.3 Surface roughness Raceways and
20、 balls: R, = 0,2,um Bore, side faces of bearing and bearinglbush swivelling surfaces: R, = 0,8 ,um Embedding diameter and support face of the bush: i?, = 1,6 prn General state: R, = 3,2 ,um The values apply prior to surface treatment. 5.4 Materials Bush: Inner ring: Outer ring: Balls: EN 2030, 1 58
21、HRC Shields: corrosion resisting material Seals: EN 2502 or EN 2503 or EN 2539, 29 HRC to 37 HRC EN 2030 or EN 2226, on the side with raceway 2 58 HRC, on the side with fixing holes 20 HRC to 30 HRC EN 2030 or EN 2226, 2 58 HRC polytetrafluoroethylene (PTFE) or polytetrafluoroethylene (PTFE) reinfor
22、ced with glass fabric. 5.5 Surface treatment Passivation according to IS0 8075: code T Without surface treatment: without code Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted witho
23、ut license from IHS-,-Page 5 prEN 4041 : 1995 00 I I I- I I 0 dl I I OJ CI I st In both positions al 180 from the bearing NOTE: Break sharp edges 0.1 to 0,4; the edges of spherical surfaces shall be carefully rounded off. Figure 1 O 12 x 05.1 -0.05 I Ei “ Figure 2 - Solid flanged alignment bush, cod
24、e C 1) Transition area at the manufacturers discretion Figure 3 - Lightweight flanged alignment bush, code D Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IH
25、S-,- STD-AECMA PREN 4041-ENGL L777 LOL2333 0033337 502 O -0.1 35 38 43 48 53 67 Page 6 prEN 4041 : 1995 JH nrao Num- ber o min. 10.15 holes ) i10 19 12“ 2 o 30 2020 4 0,3 15 to 2O . ora - 20 1 O40 6 21 130 22 Type with shields Code P Type with seals Code E NOTE 1 - The process for installation of se
26、als and shields is at the manufacturers option. NOTE 2 - The shields shall not extend beyond width C. Figure 4 Table 1 ) Maximum values for the user 1 See EN 3727 H2LK Y14.FIYIQIBiI - Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANo
27、t for ResaleNo reproduction or networking permitted without license from IHS-,-1,3 1,27 f,2 0.92 1,75 2,13 1,78 2.48 3,18 1,72 2,08 I ,75 2,44 3,13 1.67 2 1,68 2.37 3,03 1,ll 1,29 1,16 1,46 1.78 32 35 40 0.84 45 50 63 0,99 1,1 1 ,O6 1,3 1.17 1.18 Page 7 prEN 4041 : 1995 Table 2: Loads for bearings w
28、ith code C alignment bush Permissible static loads) kN Axial A F. rnax. F. max. L I U d Code for a rnax. disolacement of: I for a rnax. disolacernent of: 0.1 mm I 0.15 mrn I 0.2 mm I 0,1 mm I 0.15 mrn I 0.2 rnm 1 I I I I 24,5 32 35 25.5 29,5 40 45 32,4 35.3 50 63 39,2 1 Axial and radial loads may be
29、 applied simultaneously. For ultimate static loads, see EN 3727. Table 3: Loads for bearings with code D alignment bush I I Permissible static loads) r Axial kl F8 mar. F8 max. r=! d Code Radial cs k“ I I I for a max. displacement of: 1 for a max. displacement of: I 0,l mm I 0,15 rnm 1 0.2 rnrn I 0.
30、1 mrn I 0.15 mrn 0.2 mm 24.5 25.5 29,5 32.4 1,37 1,57 35.3 39.2 H 2LK (Y 14.FIY IQIB) Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-Page 8 prEN 4041 :
31、1995 Description Block 6 Designation Identity Block EXAMPLE: NOTE: If necessary, the originator code 19005 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 EN 3727 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-
