1、A.E.C. M.A. STANDARD NORME A.E.C.M.A. A.E.C.M.A. NORM prEN 3425 Issue P 1 September 1991 DITE PAR LASSOCIATION EUROPEENNE DES CONSTRUCTEURS DE MATRIEL AROSPATIAL Technopolis - 175. rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cdex -Tl. (1) 47.36.98.76 UDC Key words : ENGLISH VERSION Aeros
2、pace series Groove dimensions for axial mounting internal type retaining rings Srie arospatiale Dimensions des gorges pour anneaux darrt, type intrieur, montage axial Luft- und Raumfahrt Nuten fr axial in Bohrungen montierbare Sicherungsringe Mae This .Aerospace Series pre-standard has been drawn up
3、 under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). t is published on green paper for the needs of AECMA-Members. It has been technically approvedby the experts of the concerned Commission following comment by the Member countries. Subsequent to the pu
4、blication of this pre-standard, 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
5、OfficiaServices of the Member countries it willbe submittedas a draft European Standard to CEN (European Committee for Standardization) for final vote. Nota - Extra copies can be supplied by B.N.A.E. - Technopolis 54 - 199, rue Jean-Jacques Rousseau - 92138 ISSY-LES-MOULINEAUX CEOEX Edition approved
6、 for publication I Comments should be sent within six months I 1991 -09-27 after the date of publication decision A.E.C.M.A. Technopolis - 175, rue Jean-Jacques Rousseau 921 38 Issy-les-Moulineaux Cdex - FRANCE C3 Chairman Mr. ARENA 0 aecma 1991 Copyright Association Europeene des Constructeurs de M
7、ateriel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AECMA PREN83425 93 LOI12333 0007395 T prEN 3425 Page 3 1 This standard defines the dimensions of grooves for axial mounting, internal type, retaining rings.
8、Scope and field of application 2 Required characteristics 2.1 Configuration - Dimensions See figure 1 and table. Previous page is blank Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permit
9、ted without license from IHS-,-,-prEN 3425 Page 4 I M 2 H11 H13 2.65 - 3.15 4.15 . iclurers Figure 1 Table millimetres NR min. rnax. 4.5 0.25 - 5,3 0.3 6 0,4 7.5 option. H12 050 062 063 0,12 4.5 ml 1 2.65 1 1 0.25 075 75 78 077 77 80 Dimensions 078 86.5 085 88.5 087 O88 090 93,5 H12 092 92 095 95 09
10、7 87 108 108 110 . 150 150 155 H13 158 163 1-1 170 I II The tolerance is left to the man LSquare and sharp edge on the bearing side. 21 1 H11 when the axial load is to both directions ; - H13 when the axiallosd is to one direction only. Copyright Association Europeene des Constructeurs de Materiel A
11、erospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AECMA PREN*3425 91 1012311 0007197 3 prEN 3425 Page 5 I 3 Designation Example : Diameter code (see table) I 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-,-,-
