1、 - - STDmAECMA PREN IClbL-ENGL 3977 LUL23LL 0033328 727 = AECMA STANDARD NORME AECMA AECMA NORM prEN 3061 Edition P 1 August 1997 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMAI Gulledelle 94 - 8.1200 BRUXELLES - Tel. (+32) 2 775 81 10 - Fax. (+32) 2 775 81 11 ICs : ENGLISH VER
2、SION Aerospace series Bearings, airframe rolling Rigid single row ball bearings in corrosion resisting steel, with 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 dali
3、gnement collerette Dimensions et charges Luft- und Raumfahrt Flugwerklager Einreihige Rillenkugellager aus korrosionsbestndigem Stahl mit selbsteinstellendem Flansch Mae und Belastungen This “Aerospace Series “ Prestandard has been drawn up under the responsibility of AECMA (The European Association
4、 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 not
5、 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
6、as a draft European Standard to CEN (European Committee for Standardization for formal vote. Nota - Extra copies can be supplied by B.N.A.E. - Technopolis 54 - 199. rue Jean-Jacques Rousseau - 921 38 ISSY-LES-MOULINEAUX CEDEX I Comments should be sent within six months after the date of publication
7、to I Edition approved for publication I 1997-08-29 AECMA Gulledelle 94 B-1200 BRUXELLES C1 Chairman Mr streicher - aecma 19! - STD-AECMA PREN IObL-ENGL 1777 m 1012311 0013329 bb3 m Page 3 prEN 3061 : 1995 1 Scope This standard specifies the characteristics of rigid single row ball bearings in corros
8、ion resisting steel, with a solid or lightweight flanged alignment bush, designed to withstand only slow rotations and slight oscillations under load. They are intended for use in the hubs of torsion levers and in separated supports. The bearings defined in this standard shall be used in the tempera
9、ture range - 54 C to 150 C. However, as they are lubricated with the following greases (see EN 2337): - ester type extreme pressure grease (code A), operating range -73 C to 121 C or - synthetic hydrocarbon type extreme pressure grease (code 6). operating range - 54 C to 177 C, their field of applic
10、ation when lubricated with code A grease shall be limited to 121 C. 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
11、 hereafter. For dated references, subsequent amendments to or revisions 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 1132 Rolling bearings - To
12、lerances - Definitions IS0 8075 Aerospace - Surface treatment of 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, 5 150 mrn) EN 2424 Aerospa
13、ce series - Marking of aerospace products EN 2502 Aerospace series - Steel FE-PM66 - 930 MPa I R, I 1 080 MPa - Bars D, 5 150 mm) EN 2503 Aerospace series - Steel FE-PM66 - 930 MPa 5 R, 5 1 080 MPa - Forgings D, I 150 mrn) EN 2539 Aerospace series - Steel FE-PM61 - Solution annealed and precipitatio
14、n hardened - R, 1 960 MPa - Bars D, s 120 mm? EN 3727 Aerospace series - Bearings, airframe rolling, rigid single row ball bearings with flanged alignment bush - Technical specification2) 3 Definition Bearing, full complement of balls (without retainer), with filling slot. 1 Published as an AECMA St
15、andard at the date of publication of this standard. 2l Published as an AECMA Prestandard at the date of publication of this standard. Previous page is blank HZLK (YI5.FNIBIBIB)I Page 4 prEN 3061 : 1995 4 Symbols The tolerance definitions are given in IS0 1 132 = single plane mean bore diameter devia
16、tion = deviation of a single bore diameter = axial internal clearance = radial internal clearance = assembled bearing inner ring face runout with raceway = assembled bearing outer ring face runout with raceway = radial runout of assembled bearing inner ring = radial runout of assembled bearing outer
17、 ring = permissible static axial load = permissible static radial load 5 Required characteristics 5.1 Configuration, dimensions, limit deviations, clearances, torques and masses See figures 1 to 4 and table 1. The dimensions are expressed in millimetres, apply after surface treatment. The bearings a
18、re 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 balls: R, = 0.2pm Bore, side faces of bearing and bearing/bush swivelling surfaces: R, = 0,8 pm Embedding diameter and support face of t
19、he bush: R, = 1,6 pm General state: Ra = 3,2 pm The values apply prior to surface treatment. 5.4 Materials Bush: EN 2502 or EN 2503 or EN 2539, 29 HRC to 37 HRC Inner ring: EN 2030 or EN 2226, e 58 HRC Outer ring: EN 2030 or EN 2226, 2 58 HRC Balls: EN 2030, 2 58 HRC Shields: corrosion resisting mat
20、erial Seals: polytetrafluoroethylene (PTFE) or polytetrafluoroethylene (PTFE) reinforced with glass fabric. 5.5 Surface treatment Passivation according to IS0 8075: code T Without surface treatment: without code STD-AECMA PREN 30bL-ENGL 1997 1012311 0013331 211 Page 5 prEN 3061 : 1995 In both positi
21、ons at 180 from the bearing NOTE: Break sharp edges O, 1 to 0,4; the edges of spherical surfaces shall be carefully rounded off. Figure 1 -tt I w. 1) Transition area at the manufacturers discretion Figure 3: Lightweight flanged alignment bush, code D Figure 2: Solid flanged alignment bush, code C Pa
22、ge 6 prEN 3061 : 1995 d Limit deviations A B C D ti, /Jm O Code nom. Ail, Ad, nom. -+0,15 -0,12 t0.2 c0.05 l6 l6 -8 O +3 -11 47 8 6 58 33 52 63 38 20 20 o +3 25 25 -lo -13 57 68 43 9 7 66 77 52 32 32 35 35 69 80 55 40 40 -12 O -15 +3 75 86 61 45 45 80 10 8 91 66 50 50 86 97 72 63 63 -15 O -19 + 100
23、11 9 111 86 Type with shields Code P Code E Type with seals NOTE 1 : The process for installation of seals and shields is at the manufacturers option. NOTE 2: The shields shall not extend beyond width C. Figure 4 Table 1 E E, r a 11 i1 1) *l. 35 35 4 O 43 42 3 30 7 46 46 3 56 55 0,3 230 min. 12 59 5
24、8 to 220 66 64 71 68 15“ 77 74 1 40 97 90 1 30 22 2 Internai Runout tolerances clearances2) max.2) Starting torque Mass max.2) z d Pm Pm Tilting torque mN.m glpiece N.m Axial Radial Code Code Code Code Code Axial Radial max. P E C D Ga Gr s, I se, K, I Kc, I ri 120 63 0.8 to 3 70 58 33 44 39 1.3 to
25、4.5 _ 1,5 to 5 48 68 155 129 2 to 6 83 113 210 178 Maximum values for the user I *) See EN 3727 HZLK (Y15.FIYIEIEIE) STD.AECMA PREN 30bL-ENGL 1777 1012311 0013333 OLi W 2.48 2.44 2.37 I 3,18 29,5 3.13 32.4 3.03 35,3 Page 7 prEN 3061 : 1995 Table 2: Loads for bearings with code C alignment bush Permi
26、ssible static loads) kN Axial I nax. I d Code I for a max. disolacement of: 1 for a I x. displacement of: 1 I I 0.15 mm I 0,2 mm I 0,l rnm 0,15 mm 0.2 mm 21 0.1 mm 16 20 25 32 35 2.5 32 FI 25.5 1.32 # 1.16 40 45 50 63 1,3 1.27 1,2 0,92 1 Axial and radial loads may be applied simultaneously. For ulti
27、mate static loads. see EN 3727. Table 3: Loads for bearings with code D alignment bush Permissible static loads) kN Axial d Code Radial c, for a max. displacement of: 0,l mm I 0,15 mm 1 0,2 mm I 1 for a max. displacement of: 0.1 mm 0.15 mm 0.2 mm 1.32 1,71 2,06 16 20 25 32 35 40 45 50 15,2 18,7 20,6
28、 1 I 1,22 I 1.58 I 1.91 24,5 25,5 O, 84 29,5 32,4 35.3 39.2 0.99 I 1.17 I 63 1 Axial and radial loads may be applied simultaneously. For ultimate static loads, see EN 3727. HZLK (YIS.FNIB/B/BIl Page 8 orEN 3061 : 1995 Description Block BEARING 6 Designation Identity Block EN3061 -AlGPCT EXAMPLE: Dia
29、meter code d (see table 1) Type code (see figure 4) Alignment bush code (see figures 2 and 31 Surface treatment code (see 5.5) NOTE: If necessary, the originator code I9005 shall be placed between the description block and the identity block. 7 Marking EN 2424, style A. The marking position is at the manufacturers option. 8 Technical specification EN 3727
