1、A.E.C.M.A. STANDARD prEN 3426 NORME A.E.C.M.A. Issue P 1 A.E.C.M.A. NORM September 1991 DLT PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATERIEL 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 external type retaining rings Srie arospatiale Dimensions des gorges pour anneaux darrt, type extrieur, montage axial Luft- und Raumfahrt Nuten fr axial auf Wellen montierbare Sicherungcringe Mae This .Aerospace Series pre-standard has been drawn up u
3、nder the responsibility of AECMA (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 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、Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for StandardizationJ 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 CEDEX Edition appr
6、oved for publication Comments should be sent within six months C3 Chairman after the date of publication decision 1991 -09-27 A.E.C.M.A. Mr. ARENA Technopolis - 75. rue Jean-Jacques Rousseau 921 38 Issy-les-Moulineaux Cdex - FRANCE 0 aecma 1991 1 Scope and field of application This standard defines
7、the dimensions of grooves for axial mounting, external type, retaining rings. 2 Required characteristics 2.1 Configuration - Dimensions See figure 1 and table. AECIA REN83426 91 10i1231L 0007200 T W prEN 3426 Page 4 /-x Figure Table ml 1 2,05 I 1 0.25 I 075 07.5 Square a side. - edge on Dimensions r
8、 D, 1) . I D2 n; I TOI. O80 80 76.5 082 82 78.5 085 81.5 087 I 87 I 83.5 H12 138 138 140 140 3 133 H13 147 150 153 157 160 millir - M 2 H11 H13 2.65 3.15 4,15 7 Itres N min. 4.5 - - 0.4 - 1) The tolerance is left to tho manufacturers option. 2) - H11 when the axial load is to both directions ; - H13 when the axial load is to one direction only. nd sharp the beating AECMA PREN*342b 91 M 1012311 0007201 L prEN 3426 Page 5 3 Designation Example : Number of this standard Diameter code (see table)
