1、 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledelle 94 - B-1200 BRUXELLES - Tel. (+32) 2 775 81 10 - Fax. (+32) 2 775 81 11 ICs: Descriptors: Y ENGLISH VERSION Aerospace series Bearings, spherical plain, in corrosion resisting steel Narrow series Dimensions and loads In
2、ch series Srie arospatiale Rotules lisses en acier rsistant la corrosion Srie troite Dimensions et charges Srie en inches Luft- und Raumfahrt Gelenklager aus korrosionsbestndigem Stahl Schmale Reihe Mae und Belastungen Inch Reihe This “Aerospace Series“ Prestandard has been drawn up under the respon
3、sibility of AECMA (The European Association 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 P
4、restandard, the technical content shall not 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
5、 the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. STD-AECMA PREN bOib-ENGL L998 LOL23Ll 0034727 184 M AECMA STANDARD prEN 6046 NORME AECMA Edition P 1 AECMA NORM August 1998 aecma 1998 Nota - Extra copies can be s
6、upplied 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 to I Edition approved for publication 1998-08-31 AECMA Gulledelle 94 B-1200 BRUXELLES AIBITF3 Chairman Mr J. LUCK - Page
7、3 prEN 6046 : 1998 STD-AECMA PREN bOLib-ENGL 3998 1012311 0034730 7Tb 6 1 scope This standard specifies the characteristics of inch based spherical plain bearings, metal to metal, in corrosion resisting steel, narrow series. They are intended for use in fixed or moving parts of the aircraft structur
8、e and their control mechanisms. They shall be used in the temperature range -54C to +150C. However being lubricated with the following greases: - grease as per MlL-G-23827 (Code A): operating temperature range -73C to +121 “C or - grease as per MlL-G-81322 (Code B): operating temperature range -54C
9、to +177“C. Their field of application when lubricated with grease Code A is limited to +121 “C. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These norma- tive references are cited at the appropriate places in the text an
10、d the publications are listed hereafter. For dated referen- ces, subsequent amendments to or revisions of any of these publications apply to this European Standard oniy when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to ap- plie
11、s. IS0 1132 IS0 8075 EN 2030 EN 2337 EN 2424 EN 2539 MI L-G-23827 MIL-G-81322 MI L-L-4601 O Rolling bearings - Tolerances - Definitions Aerospace - Surface treatment of hardenable stainless steel parts Steel FE-PM43 - Hardened and tempered - Bars D I 150 mm - Aerospace Series Aerospace series - Sphe
12、rical plain bearings - Technical specification Aerospace series - Marking of aerospace products Aerospace series - Steel FE-PM61 - Solution annealed and precipitation hardened - Rm r!J6OMPa-Bar-De120mrn1) Grease, Aircraft and Instrument, Gear and Actuator Screw, NATO code No. G-354, Metric 2, Grease
13、, Aircraft, General Purpose, Wide Temperature Range 2, Lubricant, Solid Film, Heat-Cured, Corrosion Inhibiting 2) 3 Symbols Symbols of tolerances are in accordance with definitions as per IS01132. Ca cs A ds A dmp A Ds A Dmp a permissible ( limit ) static axial load permissible ( limit ) static radi
14、al load deviation of a single bore diameter single plane mean bore diameter deviation deviation of a single outside diameter single plane mean outside diameter deviation angle of tilt of the outer ring with respect to the inner ring, the spherical surface of the outer ring being completely in contac
15、t with the inner ring. 4 Requirements 4.1 Configuration - Dimensions - LimR deviations - Tolerances - Masses See figure 1 and 2 and table 1. Dimensions, limit deviations and tolerances are expressed in millimetres (inches). 4.2 Surface roughness See figure 1 and 2. Values in micrometres (microinches
16、) apply before passivation. 1) 2) Published as AECMA standard at the date of publication of this standard Published by: Department of Defense (DoD), the Pentagon, Washington, D.C. 200054922 Page 4 prEN 6046 : 1 998 Break sharp edges and corners and remove all burrs and slivers Z mp-5.J W .o10 Z W t
17、I 1) For the inner ring 2) For the outer ring Figure 1: Bearing without swaging grooves, code S S S - 0,25 -c y - (.010) 1) For the inner ring 2) For the outer ring /1 V _II_ P Figure 2: Bearing with swaging grooves, code R _ Page 5 prEN 6046 :1998 STD-AECMA PREN b04b-ENGL 1998 LOL231L 0014732 777 F
18、igure 3: Code E: Without grease hole and lubricating groove -i 1) Three holes 0 e distributed over the circumference at distance of 120“ Figure 4 Code F: With grease holes on inner ring and lubricating groove on: - Bore of inner ring - Spherical surface of the outer ring f t 1) Three holes 0 e distr
19、ibuted over the circumference at distance of 120“ Figure 5: Code G: With grease holes on inner ring and lubricating groove on: - Outer surface of outer ring - Spherical surface of the outer ring STD-AECMA PREN b04b-ENGL 1998 = 1OL23LL 0034733 b05 Page 6 prEN 6046 : 1998 4 8.5 =a, o O Cu u? O +I - J.
20、 Y .- E C In- iu 05 8 E Oui 90, u u) o o386 k I UI + OS $3 V OS In- 8 NI c I gp W.W. “5 bs c E .- a I I I I O Cu5 In. *- 8 I 3 I l E .aI a B- ci a C O G U U c .- E 3 SZ 89 o8 88 II E D a O0 88 I Al 4 STD-AECMA PREN b04b-ENGL 3778 LO123LL 0034734 541 O5 Page 7 prEN 6046 :1998 7,937 57 23 (.3125) 4.3
21、Loads and clearances See table 2. 35 41 53 76 103 138 21 o 270 366 51 8 81 5 1100 Table 2 Dimensions in millimetres (inches 0,Ol O to 0,030 l5 (.0004to ,0012) 17 21 29 41 55 79 1 o9 0,Ol O to 0,050 (.O004 to .0020) 143 203 31 3 425 Radial clearance 3, I I Permissible ( limit ) static loads kN 24 Nom
22、. dia Ode 363 38,100 963 (1.5000) O9 I 1 144 1 47 with lubrication groove Normal Code N 1545 I 594 1 Red u c e d Code P 0,002 to 0,010 (.O001 to .0004) 0,003 to 0,012 (.O001 to .0005) 0,004 to 0,015 (.O0015 to .0006) 0,005 to 0,020 (.O002 to .0008) hiai clearance 3) Normal Code N max. 0,120 (. 0047)
23、 0,229 (. 0090) Reduced Code P max. 0,035 (.0014) 0,040 (.O01 6) 0,050 (.0020) 0,060 (.0024) I) Definition and testing for ultimate static loads according to EN 2337, Annex B. 2) These values apply to loose spherical bearings. For installed bearings, the push-out loads may be smaller than these valu
24、es. 3) Definition and testing according to EN 2337, Annex A. STD.AECflA PREN bOqb-ENGL 1778 W LOL23Ll 0034735 488 = Page 8 prN 6046 :1998 4.4 Materials Inner ring: Outer ring: 4.5 Surface treatment EN 2030,55 HRC to 62 HCR EN 2539,28 HRC to 38 HCR, before swaging 4.5.1 Outer ring Dry-film lubricant
25、in the spherical surface (antiscoring treatment) according to MlL-L-4601 O 4.5.2 Inner ring Passivation according to IS08075 5 Designation EXAMPLE: Description block Identity block Spherical Plain Bearing I ENril Number of this standard Code for grease (see 1) Code for clearance (see table 2) Code f
26、or diameter (see table 1) Code for grease holes and lubricating groove (see figures 3,4 and 5) Code for swaging groove (see figures 1 and 2) NOTE: If necessary, the code 19005 shall be placed between the description block and the identity block. 6 Marking Each spherical plain bearing shall be marked at least in accordance with EN2424, style A. In addition, the bearing may I be marked with manufacturers part number. Marking position and method are at manufacturers option. 7 Technical specification See EN 2337
