1、AECMA PREN3201 90 1i0123LL 000q9b4 5 m I A.E.C.M.A. STANDARD NORME A.E.C.M.A. A.E.C.M.A. NORM prEN 3201 Issue P 1 August 1990 DIT PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATRIEL AROSPATIAL 88, boulevard Malesherbes, 75008 PARIS -TL. 45-63-82-85 UDC : Key words : ENGLISH VERSION Aerospace ser
2、ies Design standard Holes for metric threaded fasteners Srie arospatiale Trous pour lments de fixation filets mtriques Norme de conception Luft- und Raumfahrt Durchgangslcher fr metrische Schrauben Konstruktionsnorm This .Aerospace Series pre-standard has been drawn up under the responsibility of AE
3、CMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published on green paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned Commission following comment by the Member countries. Subsequent to the publication of this pre-standar
4、d, 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 the Memb
5、er countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for final vote. Nota - Extra copies can be supplied by B.N.A.E. - 8, rue Moreau-Vauthier - 921 O0 BOULOGNE-BILLANCOURT Edition approved for publication Comments should be sent within six mo
6、nths C8 Chairman after the date of Dubiication decision Mr. WILLIAMS I A.E,c. M.A. I 88, Bd. Malesherbes 1990-08-24 75008 PARIS - FRANCE t aecma 7990 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or net
7、working permitted without license from IHS-,-,-IAECMA PREN3201 90 M 1012311 0004765 i M prEN 3201 Page 3 O 1 Scope and field of application This standard provides particulars of hole sizes, chamfer dimensions and positional tolerances to suit metric threaded fasteners with nominal diameters of 3 to
8、20mm. 2 Hole characteristics 2.1 Clearance application 2.1.1 Clearance holes as defined in Table 1 shall be used for all general joint applications using non-fitting fasteners Figure 1. 2.1.2 The PD shank bolts quoted in Table 1 shall comply with the AECMA EN series. 2.2 Close clearance applications
9、 On all rotating components and engine flanges, where it is unnecessary to have a fitted application. The close clearance holes defined in Table 4 with close tolerance shank bolts Figure 2 shall be used. This is required to obtain the good balancing characteristics needed for rotating assemblies and
10、 to ensure that joints cannot twist during assembly and cause misalignment of casings or rotors. O 2.3 Fitted application It is recognised that for mainshaft flanges, bolted discs and similar rotating applications, to ensure correct alignment of components and to enable accurate balancing it will be
11、 necessary to use the close tolerance holes defined in Table 6 with fitted fasteners Figure 3. 2.4 Hole chamfers 2.4.1 The side of the hole on which the bolt head sits shall be provided with a chamfer to ensure sufficient clearance exists to avoid crushing the bolt under head fillet radius. 2.4.2 Wh
12、ere there is a possibility of a bolt being fitted from either direction then the exposed end of the hole in both assembled flanges shall be chamfered. O 2.5 Positional tolerances 2.5.1 Positional tolerances are applicable where two or more parts with the same nominal hole diameters are to be joined
13、together to ensure that the fasteners can be satisfactorily assembled, The details for the positional tolerances for clearance applications are given in clause 4, for close clearance applications in clause 61 and for fitted applications in clause 8. 2.5.2 Clause 10 and Figure 6 detail examples of ty
14、pical applications to which the positional tolerances given in clause 7, clause 8 and clause 9 are to be applied. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license fr
15、om IHS-,-,-prEN 3201 Page 4 3 Holes for clearance applications Table 1 3148 3130 H13 3t30 4158 4140 H13 4140 5168 5t50 H13 5t50 6,82 6t60 H13 6,60 7t92 7170 H13 7170 9t02 8,8O H13 8180 10180 H13 1080 11 I O7 13107 Nom i na1 thread D 2181 2t55 0193 3167 3141 1117 4161 4135 11 33 5,48 5122 1160 6148 6
16、,22 1170 7,48 7122 1180 9t32 9106 , 2,01 6 7 8 10 12 14 16 18 20 0149 0173 O189 1112 li22 1132 1148 1164 i Hole diameter I Bolt PD shank I PD shank dia I Chamfer 1 4130 3t9O 5140 5100 1 6t60 6120 1 1 8,OO 7160 9100 8160 1OtOO 9160 12120 11180 14t40 14100 -16r80 16140 18180 l8,40 21120 20180 23120 22
17、180 diameter B clear 19t13 I FIG 1 50 40 VIEW AT C 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-,-,-I /AECFIA PREN3201 90 I L01231L 0004767 O I- prEN 32
18、01 Page 5 4 Positional tolerances for clearance applications 4.1 Table 2 gives the positional tolerances that shall be used with the hole sizes from Table 1 used in type 1 applications see Figure 61 ie when the components being joined ail have clearance holes. 4.2 Table 3 gives the positional tolera
19、nces that; shall be used with the hole sizes from Table 1 used in type 2 applications see Figure 6, ie when one of the components being fastened contains a tapped hole and insert or a captive nut etc, and shall apply at maximum material condition (MMC). Table 2 Type 1 applications (Nominal bolt dia
20、I 4 5 I !pos it ionai $ 013 $ 014 $ 015 tolerances MMC 6. 1 7 18 Thru 20 t ! I Or* I 016 0,7 I i i Table 3 Type 2 applications Nominal bolt dia 314 l6 7 18 Thru 20 Positional tolerances MMC 1 I 1 l I ! 0115 $ O12 $ 0125 $ 013 fl 0135 4 014 Copyright Association Europeene des Constructeurs de Materie
21、l Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-prEN 3201 Page 6 5 Table 4 Holes for close clearance applications Nominal Hole diameter Bolt fitted Shank dia Chamfer thread shank diameter clearance E $ C max min
22、 max min D OE 5127 41990 5 5115 H12 5115 5,OO f7 41978 0,292 01160 6120 5190 6130 51990 6 6115 H12 6115 6100 f7 51978 O1322 01160 , 7176 7140. 7t30 6 1987 I 7 7115 H12 7115 7100 f7 61972 0,328 0,160 8176 8140 i 8130 7,987 8100 f7 7,972 O1328 01163 9,76 g140 10115 H12 10115 10100 f7 9,972 0,328 0,163
23、 I 12103 11160 10 12 12,15 H12 12,15 12100 f7 11,966 0,364 01166 114123 13180 16,58 16115 14 18,67 18,15 16 18 18,15 H12 18115 18100 f7 17,966 01364 10,166 21102 20,50 20 20,15 H12 20115 20100 f7 19,959 01401 10,170 23102 22150 8 8115 H12 8115 10 I 30 9 1981 12,33 11 I 984 14 133 13 1984 14,15 H12 1
24、4,15 14,OO f7 131966 01364 01166 16,15 Hl2 16,15 l6,OO f7 15,966 0,364 01166 16 , 33 15,984 18133 17 I 984 20136 19 I 980 C FIG 2 VIEW AT G Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking pe
25、rmitted without license from IHS-,-,-w- AECMA PREN3201 90 I 1012311 0004969 4 1 prEN 3201 Page 7 6 Positional tolerance for close clearance applications Table 5 gives the values of positional tolerances that shall be used with hole sizes from Table 4 for close clearance applications and shall apply
26、at maximum material condition (MMC). Table 5 Pitch circle dial 1600 Hole positional tolerance MMC O Op08 o 0,lO O 0115 EX AMPLE. THE POSITION TOLERANCE GIVES THE RELATIONSHIP BETWEEN THE HOLE AND THE OATUM. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS und
27、er license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- Nominal thread Hole diameter D c 3 i O20 3 3100 F8 3,006 4 I O28 4 4100 F8 4,010 5,028 5 5100 F8 51010 61028 prEN 3201 Page 8 7 Holes for fitted applications Table 6 Bolt Fitted shank ,diameter E
28、 2 994 3100 f7 2,984 3,990 4100 f7 3,978 4 1990 5100 f7 4,978 , 5 I 990 8140 9,40 ll,6O 13 i 80 16 , 20 18 , 20 20r60 22 i 60 6 (6,OO F8 6,010 I6,OO f7 5,978 6 i 987 14 16 18 20 12 112100 F8 12,016 112,OO f7 11,966 14,043 I 13 i 984 14100 FE 14,016 14,OO f7 13,966 16,043 15,984 ,l6,00 F8 l6,l6 16,00
29、 f7 15,966 18,oo F8 18,016 18,OO f7 17,966 18,043 17,984 20,053 19 ,980 20,OO F8 20,020 20tOO f7 19,959 C k3 FIG 3 Shank dia 1 Chamfer clearance min max max O i 036 01063 0,077 SO“ 40 o, 012 I: o I020 t- 1 7,76 I VIEW AT G Copyright Association Europeene des Constructeurs de Materiel Aerospatial Pro
30、vided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-JAECMA PREN3201 90 = 101231L 000971 2 1 O prEN 3201 Page 9 a Positional tolerance for fitted applications Table 7 gives the values of positional tolerance that shall be used for fi
31、tted holes and shall apply at the maximum material condition (MMC). Table 7 Pitch Over O 75 250 750 1600 :irele dia 1 Hole positional Upto i including I I tolerance MMc i 75 O 0104 250 O 0105 750 O O108 1600 o O110 o 0112 4 HOLES O5 FB EQUALLY SPACED :l AlSI EXAMPLE THE FINER POSITION TOLERANCE Y GI
32、VES THE RELATIONSHIP BETWEEN THE 4 HOLES. THE WIDER POSITION TOLERANCE X GIVES THE RELATIONSHIP BETWEEN THE WHOLE GROUP OF HOLES AND THE DATUMISI Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or network
33、ing permitted without license from IHS-,-,-prEN 3201 Page 10 9 Examples of positional tolerance to be used in clearance applications Fig 4 TABLE 3 TYPE 2 POSITIONAL TOLERANCES - TABLE 2 TYPE 1 POSITfOML FIGURE 4A FIGURE dB FLOATIffi THROUGH BOLT ANCHOR NUTS F IGRE bc 5K NUT TYPE 2 FIGURE bo STUDS TYPE 2- TAPPIffi POSITIONAL TOlERAHCf /-TABLE 3 TYPE 2 POSITIONAL TOLERANCE FIGURE 4 E INSERTS 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-,-,-
