1、EUROPEAN STANDARD I I-= EN 2022 NORME EUROPENNE EUROPAISCHE NORM January 1988 UDC : 629.7.02 621.822.3-408.2-72.004.1 : 669.14.01 8.89 Key words : Aircraft industry, spherical bearing, corrosion resisting steel, linings, self-lubricating parts, dimensions, loads, English version Aerospace series Bea
2、rings, spherical plain in corrosion resisting steel with self-lubricating liner Light series Dimensions and loads Srie arospatiale Luft- und Raumfahrt Srie lgre Leichte Reihe Rotules en acier rsistant la corrosion 21 garniture autolubrifiante Dimensions et charges Gelenklager aus korrosionsbestndige
3、m Stahl mit selbstschmierender Beschichtung Mae und Belastungen This European Standard was accepted by CEN on 1987-1 1-1 6. CEN members are bound to comply with the requirements of CEN Internal Regulations which stipulate the conditions for giving this European Standard the status of a national stan
4、dard without any alteration. Up-to-date lists and bibliographicai references concerning such national standards may be obtained on application to the CEN Central Secretaria:or to any CEN member. This European Standard exists in three official versions (English, French, German). Aversion in any other
5、 language made by translation under the responsibility of a CEN member into its own language and notified to CEN Central Secretariat has the same status as the official versions. CEN members are the national standards organizations of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Irel
6、and, Italy, Netherlands, Norway, Portugal, Spain. Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat : Rue Brderode 2, 8-1 O00 Bruxelles CEN 1987 Copyright reserved to all CEN members _I
7、 P - _- Ref. Nr EN 2022 : 1987p-, EN 2022 Page 2 Brief history This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After enquiries and votes carried out in accordance with the rules of this Association, this draft has successively received the app
8、roval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to C.E.N. According to the Common CEN/CENELEC Rules, following countries are bound to implement this European Standard: EN 2022 Page 3 1 Scope and field of application This standa
9、rd specifies the characteristics of spherical plain bearings in corrosion resisting steel with self lubricating liner, light series. They are intended for use in fixed or moving parts of the aircraft structure and control mechanisms. They shall be used in the temperature range -55 to +150 OC. 2 Refe
10、rences EN 2030, Steel FE-PM43 - Hardened and tempered - Bars D 150 mm - Aerospace series EN 2064, Bearings, spherical plain in corrosion resisting steel with self lubricating liner - Technical specification - Aerospace series EN 2136, Steel FE-PM42 - 900 MPa 5 Rm 1100 MPa - Bars De 5 100 mm - Aerosp
11、ace series Aerospace series - Steel FE-PM61-Rm EN 2539, 960 MPa - Bars De 5 150 mm 1) 3 Symbols “ds = the deviation of a single bore diameter DS = the deviation of a single outside diameter dmp Dmp 6 single plane mean outside diameter deviation Q single plane mean bore diameter deviation = maximum d
12、isplacement angle which can be formed by the outer ring with the inner ring the spherical track of the outer ring being fully in contact with the inner ring. 4 Required characteristics 4.1 Dimensions - Tolerances - Masses Configuration shall correspond with figures 1 or 2. Dimensions, tolerances and
13、 masses shall correspond with table 1. 4.2 Loads - Starting torques Loads and starting torques shall correspond with table 2. 4.3 Materials Inner ring : steel EN 2030 Outer ring : steel EN 2136 or steel EN 2539 Liner : Self-lubricating low friction wear resisting material consistent with requirement
14、s of EN 2064. i) in preparation - I EN 2022 Page 4 405 66,9 87,4 127,3 21 6,7 2625 348,l 4102 545 #5 695.7 , 16 15 7,1 7,1 28,6 22 2 49 ,O 325 61 2 37 I5 105,6 47 ,o 5,1 5 11 13,7 13,7 38 IO 26,O 81 9 42 ,O figure 1 : without swaging groove Code S Figure 2 : with swaging grooves Code R Table 1 Detai
15、l W Dimensions in millirnetres - Table 2 Permissible static loads kN I d nominal mrn 12 15 17 20 25 30 - 35 40 45 50 axial for I spherical bearings axial I radial with swaging grooves after swaging 1) I I CS Permissible dynamic dial loads 25000 cycles kN 162 26,7 349 50,9 86,7 105 .O 139.0 164,l 218
16、2 278.3 starting torques N.m 0.12 to oso 025 to 1,OO 0,40 to 2po 0,60 to 350 1) These values are given for information. The actual values obtained depend on the method of swaging. . P CEN ENx2022 86 3404589 OOOL220 L = Designation Each spherical plain bearing shall only be designated as in the follo
17、wing example : Identity block I Description block R = Code for type with swaging groove (See figure 2) I 12 = Code diameter d, (See table 1) I Where the following code for type is applied : R = with swaging grooves S = without swaging groove Note : If necessary, the originator code S9005 may be Intr
18、oduced between the description block and the identity block. 6 Marking In addition to the manufacturers own marking, each spherical plain bearing shall be marked, using the Identity block as defined in clause 5 of this standard. Marking position and method are at the manufacturers option. 7 Technical specification Bearings, spherical plain supplied to this standard shall conform with the requirements of Eh 2064.
