1、A. E.C. M.A. STANDARD NORME A.E.C.M.A. A.E.C.M.A. NORM Edition approved for publication 14 th September 1987 prEN3286 Issue P 1 September 7987 Comments should be sent within six months CI Chairman after the date of publication decision A.E.C.M.A. 88. Bd. Malesherbes Mr. MOUTARDE 75008 PARIS - FRANCE
2、 DIT PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATERIEL AROSPATIAL 88, boulevard Malesherbes, 75008 PARIS -TEL. 45-63-82-85 UDC : 629.7.02 : 621.822.74.004.1 : 669.14.018.89 Key words : Aircraft industry, airframe bearings, ball bearings, corrosion resisting steel, dimensions, static loads ENG
3、LISH VERSION Aerospace series Bearings-airframe rolling rigid, single row ball bearings in corrosion resisting steel diameter series O and 2 normal clearance category Dimensions, torques, and loads Srie arospatiale Luft- und Raumfahrt Roulements pour structures daronefs Flugwerklager roulements rigi
4、des une range de billes en acier rsistant la corrosion sries de diamtres O et 2 catgorie jeux normaux Dimensions, couples et charges einreihige Rillenkugellager aus korrosionsbestndigem Stahl Durchmesserreihen O und 2 normale Lagerluft Mae, Momente und Belastungen This 58 HRC. Balls : Steel EN2030,
5、7 58 HRC. Shields : Corrosion resisting material. Seals : Polytetrafluoroethylene (PTFE) or polytetrafluoroethylene (PTFE), coated glass fabric material. O Code Nomi- na1 C tolerances pm Axial Radial Ax max . d o The 05 O6 08 10 12 15 17 20 25 30 3 Bearing with shields - Code P Ga c; 5 6 8 10 12 15
6、3 to 18 I7 120 20 25 5 to 20 30 150 100 2 to 13 De tail W applicable to bore and outer surface E process for installation of seals and shields is at the manufacturers option. Figure 1 d I internai I Runout tolerances I Starting torque (Sial 40 I. I I I 1) Definition : see EN3280 where Ys = 2,2 F max
7、.= - CS a Ys 1 e Shields Seals Axial and radial loads may be applied simultaneously. For ultimate static loads, see EN3280. Permissf- ble static radial load 17yO 23,3 26,9 I. n -1 62,6 i i AECMA PREN328b 87 m LOL231L 00052Yb 2 m prEN3286 Page 6 I 7 Designation Each bearing shall only be designated a
8、s in the following example : Description block Identity block BEARING . EN3286AlOP A = Code for ester type grease I I I I 10 = diameter code of d (see table) P = code for type with shields I where the following codes are applied : Greases A = ester type grease B = synthetic hydrocarbon type grease E
9、 = with seals P = with shields Note : If necessary, the originator code S9005 the description block and the identity block. may be introduced between 8 Marking In addition to the manufacturers own marking, each bearing shall be marked, on - - 6 one side face only using the identity block as defined in clause 7 of this standard. Marking position and method are at the manufacturers option. 9 Technical specification Bearings supplied to this standard shall conform with the requirements of EN3280.
