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 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.
7、1.3 4.1.4 5 6 6.1 6.2 6.3 6.4 . . Symbols _._. Required characteristics, Configuration - Dimensions “ Tokrances 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 an
8、d 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 diameter 3 I 50; maximum run-out tolerance Y = 0,025 Groove diameter d3 50; maximum run-out tolerance Y = 0,051 Figure I STD-AECMA PREN 37YB-ENGL 2000 W LOL231L 0017BOL1 L1b7 Page 5 prEN 3748: 2000 C
9、ode 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 = 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. A036
10、5 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 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
11、 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 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
12、4 17,OO 17,66 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
13、 I BO069 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
14、BO800 1 80,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. 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
15、 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 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 102,8
16、2 108,30 108,30 112,oo 115,12 120,60 120,60 CI150 CI220 C1320 11 500 118,22 123,70 123,70 122,oo 125,32 130,80 130,80 132,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
17、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 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-ri
18、ngs, according See IS0 286-2. 236,OO 242,32 247,80 247,80 250,OO 256,62 262,l O 262,l O 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 STD-AECMA PREN 37LiB-ENGL 2000 W LIIL2311 0037808 O02 W Page 9 prEN 3748: 2000 , E3150 I 315,
19、OO I 323,36 I 334,70 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,
20、80 I 180,801 E2800 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 1
21、95,16 206,50 206,50 200,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,
22、30 319,30 E3250 E3350 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 STD.AECMA PREN 37LiA-ENGL 2000 m L0123L1 0017809 T49 m Page 10 prEN 3748: 2000 Surface
23、 Side s u rfa ces Inside diameter Groove 4.1.2 This configuration (not recornrnanded) corresponds to radial grooves in static 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 pres
24、sure pressure variation press u re variation s5MPa 5MPa 15MPa 5MPa r5MPa 5MPa s5MPa 5MPa max. 12,5 3,2 1,6 . 6,3 116 196 693 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-o
25、ut tolerance Y = 0,05 Figure 2 Table 8 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. 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,
26、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 11,7 I 8s 18,OO 17,86 20,70 17,94 20,oo 19,86 22,70 19,94 22,40 22,16 25,OO 22,2
27、4 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 to the codification of O-rings, according See IS0 286-2. I A0400 1 40,0-9,36
28、1 425 1 39,44 STD-AECMA PREN 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,O
29、O BO280 BO325 BO140 14,OO 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
30、,OO I 44,42 1 48,72 I 44,58 I a to aerospace series EN standards. Size code corresponding to the codification of O-rings, according See IS0 286-2. b 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
31、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 CO560 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 CO
32、900 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 aerospace series EN standards. Size code corresponding to the codification of O-rings, according See IS0 286-2. STD-AECMA PREN 37iB-ENGL ZOO0 LOL231L 0017813 47T M Page 14 dl
33、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 -70,05 1 61,67 DI120 DI 150 DO71 O 71 ,O0 72,13 80,85 72,47 112,oo
34、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 132,67 DI600 DI 800 1 DI400 I 140,OO I 140,23 1 148,95 1 140,57 160,O
35、O 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. STD-AECMA PREN 3748-ENGL 2000 = 10123LL 0017814 30b W Page 15 prEN 3748: 2000 El O90 E1250
36、 4.1 2.5 109,oo 109,98 121,76 1 10,42 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 24
37、8,98 260,76 249,42 I E1400 I 140,OO 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.
38、to aerospace series EN standards. STD-AECMA PREN 37riB-ENGL 2000 E LOL23LL 0017815 242 M Page 16 prEN 3748: 2000 continuous pressure s5MPa 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
39、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 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
40、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 STD-AECMA PREN 37qB-ENGL 2000 W LOL231L 001781b 187 W Page 17 prEN 3748: 2000 dl d7 Codea I nom. HI1 4.1 3.1 Section diameter c
41、f2 = 1,80 Table i7 dl d7 Codea I nom. HI1 A0069 I A0056 1 560 I 9,2 II A0200 1 20,OO I 23,60 6,90 10,5 A0250 25,OO 28,60 I A0067 I 6,70 I 10,3 II A0236 I 23,60 I 27,20 A0075 A0080 7,50 11,lO A0265 26,50 30,lO 8,OO 1 1,60 A0280 28,OO 31,60 I A0071 I 7,lO I 10,7 II A0258 I 25,80 I 29,40 A0087 8,75 12,
42、35 A031 5 3130 35,lO FA0085 I 8,50 I 12,lO II A0300 I 30,OO 1 33,60 A0140 AO1 50 A041 2 41,20 44,80 14,OO 17,60 15,OO 18,60 I A0090 I 9,OO I 12,60 II A0325 I 3230 I 36,lO - A0425 42,50 46,lO I A0095 I 9,50 I 13,lO II A0335 I 3330 1 37,lO AO1 70 A01 80 I AO100 I 10,OO I 13,60 II A0345 I 34,50 1 38,lO
43、 17,OO 20,60 A0450 45,OO 48,60 18,OO 21,60 A0475 47,50 51,lO A0118 A0375 37,510 41,lO A0190 I A0125 I 12,50 I 16,lO II A0387 I 38,70 I 42,30 19,oo 22,60 A0500 50,OO 53,60 I A0132 I 13,20 I 16,80 II A0400 I 40,OO I 43,60 FA0160 1- 16,OT 19,60( A0437 I 43,70 I 47,30 STDmAECMA PREN 3748-ENGL 2000 = 101
44、23LL 0017817 015 Page 18 prEN 3748: 2000 BO31 5 BO325 BO335 60345 BO355 4.1 3.2 Section diameter d2 = 2,65 31,50 36,80 BO580 58,00 63,30 32,50 37,80 BO600 60,00 65,30 33,50 38,80 BO61 5 61,50 66,80 34,50 39,80 BO630 63,00 68,30 35,50 40,80 BO650 65,00 70,30 Table 18 BO365 60375 I I II - 36,50 41,80
45、BO670 67,00 72,30 37,50 42,80 BO690 69,00 74,30 I dl I d7 Il dl I d7 I BO400 BO412 1 Code I nom. I HI1 1 Codea 1 nom. 1 HI1 I BO250 25,OO 30,30 BO500 50,00 55,30 BO258 25,80 31,lO BO515 5130 56,80 40,OO 45,30 BO730 73,00 78,30 41,20 46,50 BO750 75,00 80,30 1 BO265 1 26,50 1 31,80 I BO530 i 1 58,30 1
46、 BO280 28,OO 33,30 BO545 54,50 59,80 BO300 30,OO 35,30 BO560 61,30 BO425 BO437 BO450 BO462 BO475 42,50 47,80 BO800 80,00 85,30 43,70 49,OO BO850 85,00 90,30 45,OO 50,30 BO900 90,00 95,30 46,20 5130 BO950 95,00 100,30 47,50 52,80 BI000 100,oo 105.30 I BO387 I 38,70 I 44,OO II BO710 I 71,OO I 76Fl I B
47、O487 I 48,70 I 54,OO 1) I 1 1 a Size code corresponding to the codification of O-rings, according to aerospace series EN standards. See IS0 286-2. b STD.AECMA PREN 374-ENGL 2000 I 1012311 001781 T51 Page 19 prEN 3748: 2000 dl Codea I nom. 4.1.3.3 d7 dl d7 HI1 Codea 1 nom. HI1 Section diameter d2 = 3
48、,55 Table I9 CO850 CO900 85,OO 92,l o CI400 140,OO 147,lO 90,OO 97,lO C1450 145,OO 152,lO I CO800 I 80,OO I 87,lO II CI360 I 136,OO I 143,lO c1000 C1030 100,oo 107,lO CI 550 155,OO 162,lO 103,OO 110,10 CI600 160,OO 167,lO I CO950 I 95,OO I 102,lO (1 CI500 I 150,OO I 157,lO CI 060 CI O90 106,OO 113,l
49、O CI650 165,OO 172,lO 109,oo 116,lO Ci700 170,OO 177,lO CI 120 112,oo 119,lO CI750 17500 182,IO I CI150 I 115,OO I 122,lO II CI800 I 180,OO I 187,lO CI280 C1320 -CI180 I 118,OO I 125,lO I C1850 I 185,OO I 192,lO 128,OO 135,lO c2000 200,oo 207,l O 132,OO 139,lO I CI220 I 122,OO I 129,lO II C1900 I 190,OO I 197,lO r-c1i50 125,00 I 132,10 II CI950 I 195,OO I 202,10 4.1.3.4 Section diameter d2 = 5,30 Table 20 DI 220 D1250 DI 280 DI 320 dl 122,oo 132,60 DI 900 190,oo 200,60 125,OO 13560 DI 950 19500 205,60 128,OO 138,60 D2000 2
