1、EUROPEAN STANDARD EN 2286 NORME EUROPENNE EUROPISCHE NORM. December 1989 UDC : 629.7.02+05:621.887-408.2-72.004.1:669.71. Key words : Aeronautical industry, bush, aluminium alloy, liner, self-lubricating piece, dimension, English Version Aerospace series Bushes, flanged aluminium alloy wi.h self-lub
2、ricating liner Dimensions and loads Srie arospatiale Bagues paulement en alliage daluminium garniture autolubrifiante Dimensions et charges Luft- und Raumfahrt Buchsen mit Flansch aus Aluminium-Legierung mit selbstschmierender Beschichtung Mape und Belastungen ThisEuropeanStandardwasacceptedby CEN o
3、n 1988-1 1-03. CENmembersare bound to comply with the requirements of CEN Internal Regulations which stipulate the conditionsfor giving this European Standard the status of a national standard without any alteration. Up-k-date lists and bibliographicai references concerning such national standards m
4、ay be obtained on application to the CEN Central Secretariat or to any CEN member. This European Standard exists in three official versions(English, French, German). Aversion in any other language made bytranslation under the responsibility of a GEN member into its own language and notified to GEN C
5、entral Secretariat has the same status as the official versions. CEN members are the national standards organizations of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemburg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN
6、European Committee for.Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat : Rue Brderode 2, B-1000 Bruxelles CEN 1989 Copyright reserved to all CEN members Ref. Nr EN 2286 : 1989 E - CEN *EN*2286 89 3404589 O036352 8 mi .- EN 2286 Page 2 Brief history T
7、his European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After inquiries and votes carried out in accordance with the rules of this Association, this Standard has successively received the approval of the National Associations and the Official Services
8、of the member countries of AECMA, prior to its presentation to CEN. According to the Common CEN/CENELEC Rules, the following countries are bound to implement this European Standard : Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemburg, Netherlands, Norway,
9、 Portugal, Spain, Sweden, Switzerland and United Kingdom. ZN 2286 ?age 3 1 Scope This standard speci fFes the characteristics of flanged bushes f.n i-luminiiim alloy with self-lubricat.ng liner and the design recornmendation of shafts and housjcqs. a 3 Field of application The bushes are intended fo
10、r operation within the temperature range of -55 OC, to +150 OC and assembly with an interference fit into fixed and moving aerospace parts, 3 References EN 2085, A!.uminium alloy 2618A-T851 !Al-Pll-T851) - Forged bars and slabs a 150 mm - Aerospace series 1) - EN 2101, Aerospace series - Chromic aci
11、d anodlzing of aluminium and wrought aluminium alloys 1) Aerospace series - Sulphuric acid anodizing of aluminium and wrought aluminium alloys 1) EN 2284, O EN 2311, Aerospace series - Rushes with self lubricating liners - Technical specification 4 Required characteristics 4.1 Configuration - Dimens
12、lons - Tolerances - Masses Configuration : see figure 1. Dimeilsions, tolerances and masses : see figure 1 and table 1, Dimensions and tolerances apply after surface treatment. 4.2 Surface roughness 8 See fipure 1. 4.3 Materials Rush : Al.uminium alloy EN 3086. Ltner : Self-lubrj cating wear resista
13、nt materia!. consistent with the requirements of EN 2311. 4.4 Surface tretment Chronic acid anodizing EN 2101A. Sulphuric acid anodizing ER 32WA. 0 1) Published as AECMA standard. 89 I 3404589 O036354 L EN 2286 Page4 OS + X (2,5:1) Il Y (2,5:1) Break sharp corner R rnax. 0,2 Figure 1 Table 1 Dimensi
14、ons in millimetres d D - 0.1 - 0.4 6 8 10 12 15 16 18 20 22 25 28 30 32 A O -0.25 - 12 E O -0,l 1.5 - 2.5 Es - 7 24 i 15 i 29 * 18 - - 35 - 22 - + 42 - 26 - i 51 + 32 Mass in kg/l O00 pieces = I 1.1 1,O. Ilil 10 1.3 1.6 III 1.4 1.5 1.9 I 2.3 I !Il + 27 i5 14 16 - 22 25 26 - - ,i ., 2.3 2.7 3.2 3,7 1
15、: 3.4 4.1 4.7 5.7 6.0 1: 3.3 3.8 4.5 5.0 -!- 33 r6 - t 40 7 + 48 +9 28 30 - 4.6 5.3 I 6.3 I I I 7.4 - 5.9 6.9 I 8.4 I 11.0 Ilil 32 35 40 - 42 44 - 47 52 51 - 62 Only bushes whose masses Ce wilhin lhe bold lines are slandard The recommended sizes are innkcaled by . 10 8 10.1 I 8,4 88 6 6.2 I 52 I 10
16、14.2 I 11.9 16 l8 12 28,O I 23.4 41,3 15 37,9 I 31,6 16 41,2 34,3 10 24.1 I 20.1 12 31.5 26.3 15 42.6 i 35.5 18 53.8 44,8 10 26.8 I 22,4 45.1 40 25 I 168.9 I 141.0 1 30 I 210,l 1 175.4 i 119 22 12 83.8 I 70.0 43.8 I 28.0 30 35 40 45 50 262,7. 219.3 i 314.2 262.3 i 365.7 305.3 . 41 7.2 391.3 468.7 39
17、1.3 144,6 EN 2286 Page5 Table 2 d- kN mm mm 1 1 6 3.6 1 3.0 1 6,1 7.4 6 I 4.8 4. O 8 1 8.1 6.8 6 I 6.0 I 5.0 I 20 I 89.4 I 74.6 I .28 1 22 I 100.9 I 84.3 1 25 11 8.2 98.5 88,3 30 I 22 I 198,2 1 90.3 1 93.4 25 126,7 105.8 33,6 13.4 12 21,o 17.6 12 I 30 I 157.6 I 131.6 I I 20 I 102.2 I 85.3 39.4 26,3
18、21.9 15 I 22 I 115.4 I 96.3 I I 32 I 25 .i 135.1 i 112.8 1 98.6 15 I 35.5 I 29.7 81 14.8 1 12.4 I 30 I 168,l I 140.1 1 +j-%-+y 1262 I 105.4 , 35 I 30 I 147,8 I 123.4 106,2 183,9 1 153.5 1 -35 I 219.9 I 183.6 1 I I I 20 I 127,7 I 106.6 i 8 35 I 251,3 I 209.8 i 20 1-1 49 I k ! 40 I 292,5 . I 244.2 I I
19、 20 I 68.0 I 56.8 I 1 :! 1 190.0 i 158.7 i 236.4 I 197.4 45 35 282.7 236.1 : 131,8 I l I I I 12 I 38.5 I 32.2 I 52.8 62.4 22 I : I 329,l 1 274.8 375,4 I 313.5 . I 25 I 211.2 1 176.3 i 25 20 85.0 71.0 58.6 I I 22 I 95.3 I 79,6 I 25 I 110.7 I 92,4 I 1) Cs = 0.206d (L - 1.2 - R max. - E max.l kN. Value
20、s of R max. and E max. derived from the values of R and E given in table 1. 2) Definitions for C25 and ultimate static loads. see EN 2311. 3) Ca = 0.16 (A - 1.512 - id i 2.512 kN. CEN *EN*E!28b 89 E 3qOl.1589 OOLbi15b 5 E - EN 2286 ?age 6 5 Designation Each bush shall only be designated 2s in the fo
21、llowing example : Description block Identity block I BUSH Il Number of EN standard .12 = diameter d in mm (see tabie 1) 08 = length L in mm (see table 1) 1 Notes : 1 The number of characters is constant, zero (O) is inserted at the left of the figure when the diameter d or length L is less than 10.
22、2 If necessary the originators code I9CC5 may be introduced between the description block and the identity block, 6 Marking In addition to the manufacturers own marking each bush and its package shall be marked with the identity block specified in clause 5 of this standard. Marking position and meth
23、od are at manufacturers option, and shall not have any detrimental effect on the bush. 7 Technical specification Bushes supplied to this standard shall conform with the requirements of techni- cal specification EN 2311. The loads given in table 2 of this standard are only applicable under the condit
24、ions given in EN 2311. 8 Design recommendation Bushes defined by this standard are intended to be installed by interference fit methods (see figure 2). Therefore, the loads given in table 2 can only be insured if the following mounting is applied. Hardnes s I I Figure 2 shaft : 45 HRC Surface roughness of the shaft : See figure 2 The reduction in bore diameter d (see figure 1) due to interference fit of the bush in the housing has been taken into account when selecting tolerances for the shaft : f6 (clearance fit) or j6 (transition fit).
