1、CEN PREN*3060 94 II 3404589 0062393 383 AECMA STANDARD NORME AECMA AECMA NORM prEN 3060 Edition P 1 April 1994 DIT PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATRIEL AROSPATIAL Technopolis - 175, rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cedex - Tl. (1) 47.36.98.76 UDC : Descripto
2、rs : ENGLISH VERSION Aerospace series Bearings, airframe rolling Rigid single row ball bearings in steel, cadmium plated, with flanged alignment bush, cadmium plated Dimensions and loads Srie arospatiale Roulements pour structures daronefs Roulements en acier, cadmis, rigides, une range de billes, L
3、uft- und Raumfahrt Flugwerklager Einreihige Rillenkugellager aus Stahl, verkadmet, avec bague dalignement collerette cadrn.,r Dimensions et charges mit selbsteinstellendem Flansch, vet Mae und Belastungen This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA (Assoc
4、iation 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 Technical Committee following comment by the Member countries. Subsequent to the publication of this prestandard,
5、 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 Member
6、 countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. Nota - Extra copies can be supplied by B.N.A.E. - Technopoiis 54 - 199, rue Jean-Jacques Rousseau - 921 38 ISSY-LES-MOULINEAUX CEDEX C 1 Chairman I Comments should be sent wi
7、thin six months after the date of Dublication to I Edition approved for publication 1994-04-29 AECMA Technopolis - 175, rue Jean-Jacques Rousseau 921 38 Issy-les-Moulineaux Cedex - FRANCE Mr. Oestreicher aecrna 1994 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided b
8、y IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEN PREN*30bO 94 3404589 OOb2392 238 Page 3 prEN 3060 : 1994 1 Scope This standard specifies the characteristics of rigid single row ball bearings in steel, cadmium plated l) with cadmium
9、-plated flanged alignment bush designed to withstand only slow rotations and oscillations under load. They are intended for use in the hubs of torsion lever and in separated supports. The airframe rolling bearings defined in this standard shall be used from - 54OC to + 15OOC. However, being lubricat
10、ed with the following greases : - very high pressure grease, ester type (Code A) operational range - 73OC to + 121 OC, or - very high pressure grease, synthetic hydrocarbons, general purpose (Code B) operational range - 54OC to + 177“C, their field of application when lubricated with code A grease s
11、hall be limited to + 121 OC. 2 References This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amend
12、ments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. IS0 11 32 EN 2031 EN 2133 EN 2221 EN 2222 EN 2249 EN 2424 EN 3061 EN 3727 Rollin
13、g bearings - Tolerances - Definitions Steel FE-PL31 - Hardened and tempered - Bars - Aerospace series 2, Cadmium plating of steels with maximum specified tensile strength equal to or less than 1450 MPa and copper and copper alloys - Aerospace series 2, Steel FE-PL31 - Hardened and tempered - Hallow
14、bars 3.5 mm S a S 55 mm - Aerospace series 2, Steel FE-PL31 - Hardened and tempered - Hand and die forgings - Aerospace series 21 Aerospace series - Steel FE-PL52S - Rm 2 690 MPa - Bars De 5 250 mm 3, Aerospace series - Marking of aerospace products 2, Aerospace series - Bearings-airframe rolling -
15、Rigid single row ball bearings in corrosion-resisting steel, with flanged alignment bush - Dimensions and loads 3, Aerospace series - Bearings-airframe rolling, rigid, with flanged alignment bush - Technical specification 3, 3 Definitions For the purposes of this standard, the following definitions
16、apply : Bearing : Full complement of balls (without cage) with filling slot. 4 Symbols The definitions of tolerances and of clearances are given in IS0 1 132. single plane mean bore diameter deviation deviation of a single bore diameter axial internal clearance radial internal clearance assembled be
17、aring inner ring face runout with raceway assembled bearing outer ring face runout with raceway radial runout of assembled bearing inner ring radial runout of assembled bearing outer ring permissible static axial load permissible static radial load 5 Required Characteristics 5.1 Dimensions - Toleran
18、ces - Clearances - Masses Configuration : Values : see figures 1 and 2 ; the bearings can be assembled with either seals or shields. see figure 1 and table 1 ; the dimensions and tolerances are expressed in millimetres and apply after surface treatment. 1) For new design, bearings in corrosion resis
19、ting steel should be used preferably, see EN 3061. 2) Published as AECMA Standard at the date of publication of this standard 3) In preparation at the date of publication of this standard Previous page is blank Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS
20、 under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEN PRENb30bO 94 3404589 0062193 154 Page 4 prEN 3060 : 1994 In the 2 positions at 1 80 from the bearing i =I= NOTE : - Break sharp edges O, 1 to 0,4 ; edges of spherical surfaces shall be car
21、efully rounded off. Figure 1 Type with shields, Code P Type with seals Code E NOTE 1 : The installation of seals and shields is at the manufacturers option. NOTE 2 : - The shields shall not extend beyond “C“. Figure 2 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided
22、 by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEN PRENr3060 Y m 3404589 00b2194 O90 m Table 1 B Runout tolerances max. Pm Tilting Page 5 prEN 3060 : 1994 Starting torque max. 1) mN.m I I internai clearances 1) Code 16 20 25 32 35 4
23、0 45 50 63 Idl Axial max. Radial Gr Ga 3 to 11 120 5 to 13 2 to 6 -I 3 O 30 83 113 Masses kg/l O00 parts N 47 62 2 O30 2020 1 O0 1 1 Axial Sia 40 Sea 40 Radial Kia 25 Kea 40 torque 2) N .m 0,8 to 3 1 to 4 1,3 to 4,5 1,5 to 5 Code P Code E 7- 39 I 53 48 I 68 Copyright Association Europeene des Constr
24、ucteurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEN PREN*3060 74 m 3404589 O062395 T27 m for a displacement max. of : 0,l mm I 0.15 mm I 0,2 mm Page 6 prEN 3060 : 1994 for a di 0.1 mm 5.2 Loads
25、 See table 2. 112 0,92 5.3 1,67 2 1,68 1,ll 1,29 1,16 d Code 16 20 25 32 35 40 45 c Table 2 Permissible static loads ) kN Axial ilacement max. of oismm7ozmm( Radial CS 2,5 32 24,5 2.44 I 3.13 I 32.4 2,37 I 3,03 I 35,3 50 63 1) Axia For ultimate static loads see EN 3727. Surface roughness 1,46 i ,7a
26、39,2 Raceways and rolling elements : Ra = 0,2 pm Bore, side faces of the bearing and bearing/bush swivelling surface : Ra = 0,8 pn Embedding diameter and support face of the bush : Ra = 1,6 pm General state : Ra = 3,2 pm The values apply prior to cadmium plating. 5.4 Materials Bush : EN 2249, 900 MP
27、a to 11 O0 MPa Inner ring Outer ring Balls : EN 2031, 59 HRC to 64 HRC Shields : Corrosion resisting material Seals : Polytetrafluoroethylene (PTFE) or polytetrafluoroethylene (PTFE) reinforced with f ibreglass. : : EN 2031 or EN 2221 or EN 2222, 59 HRC to 64 HRC EN 2031 or EN 2221 or EN 2222, 59 HR
28、C to 64 HRC 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-,-,-CEN PRENx30bO 94 m 3404589 0062376 963 m Page 7 prEN 3060 : 1994 5.5 Surface treatment EN 2
29、133. 5.5.1 Bush Thickness 1 O pm to 20 pm ; internal spherical diameter is not cadmium plated. 5.5.2 Inner and outer rings Thickness 5 pm to 12 pm ; the bore and raceways are not cadmium plated. As soon as possible after plating, and within 16 h, de-embrittlement heat treatment shall be carried out
30、at a temperature and for a time (compatible with the performance requirements of the bearing) which shall be subject to written approval of the qualifying authorities. 6 Designation EXAMPLE : Description block BEARING Identity block Number of the present standard Code for grease type (see 1) Diamete
31、r code of d (see table 1) Type code (see figure 2) NOTE : If necessary, the code I9005 shall be placed between the description block and the identity block. 7 Marking EN 2424, category A. Marking position and method are at the manufacturers option. 8 Technical specification See EN 3727. 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-,-,-
