1、STD-AECMA PREN 37LiB-ENGL ZOOU 18 1012311 OOL7800 811 Edition approved for publication Comments should be sent within six months after the date of publication to 2000-02-29 AECMA Mr Feltham Gulledelle 94 C8 Chairman 8-1200 BRUXELLES 0 aecma 20( AECMA STANDARD NORME AECMA AECMA NORM prEN 3748 Edition
2、 P I February 2000 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledelle 94 - 8-1200 BRUXELLES - Tel. (+32) 2 775 8110 - Fax. (+32) 2 775 811 1 ICs: 49.080 Descriptors: Hydraulic fluid power, fluid circuits, hydraulic component, sealing joint, dimension, designation ENGLIS
3、H VERSION Aerospace series O-ring grooves Dimensions Srie arospatiale Gorges pour joints toriques Dimensions Luft- und Raumfahrt Nuten fr O-Ringe Mae This Xerospace Series” Prestandard has been drawn up under the responsibility of AECMA (The European Association of Aerospace Industries). It is publi
4、shed on green paper for the needs of AECMA- Members. It has been technically approved by the experts of the concerned Technical Committee following commenf by the Member countries. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interch
5、angeabilify 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 submitfed as a draft European Standard to CEN (
6、European Committee for Standardization) for formal vofe. Nota -Extra copies can be supplied by B.N.A.E. - Technopolis 54 - 199, rue Jean-Jacques Rousseau - 92138 ISSY-LES-MOULINEAUX CEDEX Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AEC
7、MANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-AECMA PREN 37rld-ENGL 2OOU H LOL23LL 0017801 758 Page 2 prEN 3748: 2000 Con tents 1 2 3 4 4.1 4.1.1 4.1.2 4.1.3 4.1.4 5 6 6.1 6.2 6.3 6.4 . . Symbols _._. Required characteristics, Configuration - Dimensions “ T
8、okrances 5MPa s5MPa 5MPa s5MPa 5MPa 15MPa 5MPa max. 3,2 123 116 63 1,6 1,6 683 6,3 1,6 63 08 32 This configuration corresponds to radial grooves in static applications, rod mounted. See figure I and tables I to 7. Key 1 O“ to 5“ 2 Bore 3 Rod 4 a See table 1. No burrs permitted in this area Groove di
9、ameter 3 I 50; maximum run-out tolerance Y = 0,025 Groove diameter d3 50; maximum run-out tolerance Y = 0,051 Figure I Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without licen
10、se from IHS-,-,-STD-AECMA PREN 37YB-ENGL 2000 W LOL231L 0017BOL1 L1b7 Page 5 prEN 3748: 2000 Code a nom. Table 2 Vb O + 0,06 - 0,04 O 4.1 .I .I A0040 A0050 I d2 I 4,OO 4,24 7,OO 7,00 5,OO 5,27 8,03 8,03 b A0060 A0069 ;i 0% 7,OO 9,40 9,20 6,OO 6,30 9,06 9,06 6,90 7,24 10,oo 10,00 Section diameter d2
11、= 1,80 AO1 40 A0160 Table 3 14,OO 14,54 17,30 17,30 16,OO 16,64 19,40 19,40 R max. I min. A0365 A0375 36,50 37,64 40,40 40,40 37,50 38,64 41,40 41,40 A0387 A0400 38,70 39,84 42,60 42,60 40,OO 41,24 44,OO 44,00 A0106 I 10,60 I 11,02 I 13,78 1 13,78 A0125 I 12,50 1 12,97 I 15,73 I 15,73 A0180 I 18,OO
12、1 18,64 1-21,40 I 21,4 A0212 I 21,20 1 21,94 1 24,70 I 24,70 I A0236 I 23,60 I 24,44 I 27,20 I 27,20 I I A0280 I 28,OO 1 28,94 I 31,70 1 31,70 I I A0315 1 31,50 I 32,54 I 35,30 1 35,30 I I I I I A0355 I 35,50 I 36,64 I 39,40 I 39,40 Copyright Association Europeene des Constructeurs de Materiel Aeros
13、patial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-AECMA PREN 3748-ENGL 2000 H 30323LL 0037805 3T3 = Page 6 prEN 3748: 2000 BO1 70 BO200 BO224 BO265 BO300 BO345 BO387 4.1.1.2 Section diameter d2 = 2,65 Table 4 17,OO 1
14、7,66 21,80 21,80 20,oo 20,66 24,80 24,80 22,40 23,16 27,30 27,30 26,50 27,36 31,50 3130 30,OO 30,96 35,lO 35,l O 34,50 35,56 39,70 39,70 38,70 39,86 44,OO 44,00 ffb O + 0,07 Codea 1 nom. - 0,05 O BO437 BO500 I BOO53 1 5,30 1 5,58 I 9,72 1 9,72 43,70 45,06 49,20 49,20 50,OO 51,46 55,60 55,60 I BO069
15、I 6,90 1 7,25 I 11,39 I 11,39 BO600 BO650 BO71 O BO750 I BO112 I 11,20 1 11,66 I 15,80 -1 15,80 60,OO 61,76 65,90 65,90 6500 66,86 71 ,O0 71 ,O0 71 ,O0 73,06 77,20 77,20 75,OO 77,16 81,30 81,30 BO132 13,20 13,76 17,90 17,90 BOI 50 1500 1536 19,70 19,70 I BO560 I 56,OO I 57,66 161,801 61,80 BO800 1 8
16、0,OO 1 82,26 I 86,40 1 86,40 a to aerospace series EN standards. Size code corresponding to the codification of O-rings, according See IS0 286-2. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or network
17、ing permitted without license from IHS-,-,-STD-AECMA PREN 37LiB-ENGL 2000 6 1012311 001780b 23T Page 7 prEN 3748: 2000 CO355 CO425 4.1.1.3 Section diameter d2 = 3,55 35,50 36,62 42,lO 42,l O 42,50 43,82 49,30 49,30 Table 5 CO545 CO61 5 4 54,50 56,12 61,60 61,60 6130 63,32 68,80 68,80 I I l I CO250 I
18、 2500 I 25,82 I 31,30 I 31,30 CO710 CO800 COOO I G,OO 1 31,02 1 36,50 T 36F 72 ,O0 73,02 78,50 78,50 80,OO 82,32 87,80 87,80 c1000 CI 120 CO487 I 48,70 I 50,12 I 55,60 I 55,60 100,oo 102,82 108,30 108,30 112,oo 115,12 120,60 120,60 CI150 CI220 C1320 11 500 118,22 123,70 123,70 122,oo 125,32 130,80 1
19、30,80 132,OO 13562 141,lO 141,lO CO900 I 9,OO I 92,512 I 98,OO I 98,OO C 1400 CI 500 140,OO 143,82 149,30 149,30 150,OO 154,12 159,60 159,60 C1600 C1700 160,OO 164,32 169,80 169,80 170,OO 174,62 180,lO 180,lO C1800 Ci 900 180,OO 189,92 195,40 195,40 190,oo 195,12 200,60 200,60 C2000 I 200,OO 1?05,32
20、 I 210,80 I 210,80 c2120 C2240 212,oo 217,62 223,l O 223,l O 224,OO 229,92 235,40 235,40 C2360 C2500 a to aerospace series EN standards. Size code corresponding to the codification of O-rings, according See IS0 286-2. 236,OO 242,32 247,80 247,80 250,OO 256,62 262,l O 262,l O Copyright Association Eu
21、ropeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD=AECMA PREN 3745-ENGL ZU00 1012311 0017807 L7b D Page 8 prN 3748: 2000 4.1 .I .4 Section diameter d2 = 5,30 Table 6 Copyrigh
22、t Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-AECMA PREN 37LiB-ENGL 2000 W LIIL2311 0037808 O02 W Page 9 prEN 3748: 2000 , E3150 I 315,OO I 323,36 I 334,
23、70 I 334,70 4.1.1.5 Section diameter d2 = 7,OO I E3870 I 387,OO I 397,16 I 408,50 I 408,50 Table 7 E1360 I 136,OO I 139,76 I 151,lO 751,14 4 d3 d4 O + 0,l I Codea I nom. - 0,09 O E1450 145,OO 148,96 160,30 160,30 1 EI 550 155,OO 159,26 170,60 170,60 , E1650 I 165,OO I 169,46 I 180,80 I 180,801 E2800
24、 I 280,OO I 287,46 1 298,80 1298,80- E1150 E1250 11 5,OO 1 18,26 129,60 129,60 125,OO 128,46 139,80 139,80 El 750 El 850 175,OO 179,76 191,lO 191,lO 185,OO 189,96 201,30 201,30 E2120 I 212,OO I 217,66 I 229,OO I 229,OO EI 900 E2000 E2240 I 224,OO 1 229,86 I 241,20 I 241,20 190,oo 195,16 206,50 206,5
25、0 200,oo 205,36 216,70 216,70 E2300 I 230,OO I 236,16 I 247,50 1 247,50 E2430 E2500 243,OO 249,46 260,80 260,80 250,OO 256,66 268,OO 268,OO E2580 I 258,OO I 264,86 I 276,20 I 276,20 E2900 E3000 E2720 1 272,OO I 279,26 I 290,60 1 290,60 290,OO 297,66 309,OO 309,OO 300,OO 307,96 319,30 319,30 E3250 E3
26、350 325,OO 333,56 344,90 344,90 335,OO 343,86 355,20 355,20 E3450 E3550 345,OO 354,06 365,40 365,40 355,OO 364,36 375,70 375,70 E3650 E3750 365,OO 374,56 385,90 385,90 375,OO 384,86 396,20 396,20 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license
27、with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- STD.AECMA PREN 37LiA-ENGL 2000 m L0123L1 0017809 T49 m Page 10 prEN 3748: 2000 Surface Side s u rfa ces Inside diameter Groove 4.1.2 This configuration (not recornrnanded) corresponds to radial grooves in s
28、tatic applications, bore mounted. See figure 2 and tables 8 to 14. Radial sealing - Bore housing: Configuration code B Rough ness Ra R continuous with pressure continuous with pressure pressure variation press u re variation s5MPa 5MPa 15MPa 5MPa r5MPa 5MPa s5MPa 5MPa max. 12,5 3,2 1,6 . 6,3 116 196
29、 693 63 Key 1 O“to5“ 2 Rod 3 Bore 4 a See table 8. No burrs permitted in this area Groove diameter d6 5 50; maximum run-out tolerance Y = 0,025 Groove diameter d6 50; maximum run-out tolerance Y = 0,05 Figure 2 Table 8 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provide
30、d by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-AECMA PREN 3748-ENGL 2000 D ZUL23LL OOL7810 7b D Page 11 prEN 3748: 2000 A0048 A0056 Table 9 4,87 5,15 7,99 5,23 560 5,84 8,68 5,92 I d2 I b IZI r1 I R 1 A0067 A0080 I I nom. 1 max
31、. I min. 1 min. I max. I min. 6,70 6,86 9,70 6,94 8,OO 8,16 I I ,o0 8,24 I 7,OO I 9,45 1 9,20 I 3,6 I 1,2 I 0,8 I AO100 A0118 4.1.2.1 Section diameter d2 = I ,80 Table IO 10,oo 10,06 12,90 10,14 11,80 11,86 14,70 11,94 dl I A0140 14,OO i 3,96 16,80 14,04 A01 80 A0200 A0224 I A00877 8,75 1 8,86 I 11,
32、7 I 8s 18,OO 17,86 20,70 17,94 20,oo 19,86 22,70 19,94 22,40 22,16 25,OO 22,24 A0250 A0280 25,OO 24,66 2750 24,74 28,OO 27,66 30,50 27,74 I A0160 I 16,OO I 15,96 I 18,80 I 16,04 A0325 A0365 32,50 32,06 34,90 32,14 36,50 36,06 38,90 36,14 . a to aerospace series EN standards. Size code corresponding
33、to the codification of O-rings, according See IS0 286-2. I A0400 1 40,0-9,36 1 425 1 39,44 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-,-,-STD-AECMA PR
34、EN 37118-ENGL 2000 M LOL231L 001781L bT7 M Page 12 BO045 prN 3748: 2000 4,50 5,07 9,37 5,23 4.1.2.2 Section diameter d2 = 2,65 Table II BO060 BO069 6,OO 6,48 10,78 6,64 6,90 7,33 1 I ,63 7,49 BO224 BO250 BO080 BO090 22,40 22,42 26,72 22,58 25,OO 24,92 29,22 25,08 BOI00 10,OO BO280 BO325 BO140 14,OO
35、28,OO 27,92 32,22 28,08 32,510 32,12 36,42 32,28 BO1 50 15,OO -I- BOI 80 18,OO BO365 BO400 BO200 I 2000 36,50 36,12 40,42 36,28 40,OO 39,52 43,82 39,68 12,12 1 16,42 I 12,28 BO500 BO560 14,22 1 18,52 I 14,38 50,OO 49,32 53,62 49,48 56,OO 55,12 59,42 55,28 I I I I BO450 1 45,OO I 44,42 1 48,72 I 44,5
36、8 I a to aerospace series EN standards. Size code corresponding to the codification of O-rings, according See IS0 286-2. b Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without l
37、icense from IHS-,-,-Page 13 prEN 3748: 2000 STDmAECMA PREN 37Li8-ENGL 2000 W LO1231L 0017812 533 Code a nom. 4.1.2.3 nb O + 0,08 - 0,06 O Section diameter d2 = 3,55 CO250 CO300 Table 12 25,OO 25,29 30,99 25,51 30,OO 30,19 35,89 30,41 CO355 CO400 35,50 35,49 41,19 35,71 40,OO 39,89 4539 40,11 CO500 C
38、O560 CO450 I 45,OO I 44,79 I 50,49 I 45,Ol I 50,OO 49,69 55,39 49,91 56,OO 5549 61 ,I 9 5571 CO630 63,OO 62,29 67,99 62,51 CO710 I 71,OO I 70,19 I 75,89 I 70,41 I CO800 CO900 80,OO 78,89 84,59 79,11 90,OO 88,69 94,39 88,91 CI120 112,oo 109,99 1 1569 110,21 CI250 125,OO 122,69 128,39 122,91 a to aero
39、space series EN standards. Size code corresponding to the codification of O-rings, according See IS0 286-2. 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
40、-,-,-STD-AECMA PREN 37iB-ENGL ZOO0 LOL231L 0017813 47T M Page 14 dl Codea I nom. prN 3748: 2000 d5 d6 d10 Vb O + 0,09 - 0,07 O 4.1.2.4 Section diameter d2 = 5,30 Table 13 DO900 DI O00 DI O90 _ 90,oo 90,93 99,65 90,27 100,00 100,73 109,45 1 O1 ,O7 109,oo 109,63 118,35 109,97 I DO600 I 60,OO I 61,33 I
41、 -70,05 1 61,67 DI120 DI 150 DO71 O 71 ,O0 72,13 80,85 72,47 112,oo 112,53 121,25 112,87 115,OO 11 5,533 124,25 I 15,87 DI 220 DI 250 122,oo 122,43 131,15 122,77 125,OO 125,43 134,15 125,77 I 01180 I 118,OO I 118,53 I 127,251 I 118,87 DI 280 DI 320 128,OO 128,33 137,05 128,67 132,OO 132,33 141 ,O5 1
42、32,67 DI600 DI 800 1 DI400 I 140,OO I 140,23 1 148,95 1 140,57 160,OO 159,93 168,65 160,27 180,OO 179,63 188,35 179,97 1 D2000 I 200,OO I 199,33 1 208,05 I 199,67 Size code corresponding to the codification of O-rings, according See IS0 286-2. to aerospace series EN standards. Copyright Association
43、Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-AECMA PREN 3748-ENGL 2000 = 10123LL 0017814 30b W Page 15 prEN 3748: 2000 El O90 E1250 4.1 2.5 109,oo 109,98 121,76 1 10,
44、42 12500 125,78 137,56 126,22 Section diameter dz = 7,OO Table 14 E1600 El 800 dl I 160,OO 160,28 172,06 160,72 180,OO 179,98 191,76 180,42 O + 0,11 I Codea I nom. I -0,09 I o I nb E2000 E2240 E2500 200,oo 199,68 21 1,46 200,12 224,OO 223,48 235,26 223,92 250,OO 248,98 260,76 249,42 I E1400 I 140,OO
45、 I 140,58 I 152,36 I 141,02 E2800 E3250 280,OO 278,48 290,26 278,92 325,OO 322,98 334,76 323,42 1 E3650 I 365,OO I 362,48 I 374,26 I 362,92 I E4000 I 400,OO I 396,78 I 408,56 I 397,22 Size code corresponding to the codification of O-rings, according See IS0 286-2. to aerospace series EN standards. C
46、opyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-AECMA PREN 37riB-ENGL 2000 E LOL23LL 0017815 242 M Page 16 prEN 3748: 2000 continuous pressure s5MPa
47、 I 5MPa I I with pressure variation s5MPa I 5MPa 4.1.3 This configuration corresponds to axial grooves in static applications, with internal pressure source. See figure 3 and tables 15 to 21. Axial sealing for internal pressure: Configuration code C 5,25 7,55 5,OO 2,85 2,75 7,30 4,34 4,24 7,OO 9,65
48、9,40 5,82 5,72 I 7 R 1 n I 1 ti- Key I O“t5 a See table 15. See table 15 for the homologous pressed on the seal. Figure 3 Table 15 Surface c Roughness continuous pressure 15MPa I 5MPa with pressure variation s5MPa I 5MPa Side surfaces Inside diameter Groove L Homologous surface Table 16 I d2 I 6 h I- min. / 4,05 1 3,80 I 2,07 I 1,97 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-,-,-STD-AECMA PREN 37qB-ENGL 2000 W LO
