ASD-STAN PREN 2016-1982 Bearings Airframe Rolling Double Row Self Aligning Ball Bearings in Steel Cadmium Plated Diameter Series 2 Dimensions and Loads Aerospace Series (Edition 3).pdf

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1、A.E.C.M.A. STANDARD prEN2Ol6 NORME A.E.C.M.A. Edition 3 February 1982 Supersedes edition 2 September 1975 A. E.C.M.A. NORM ENGLISH VERSION DO BEARINGS AIRFRAME ROLLING JBLE ROW SELF ALIGNING BALL BEAR IN STEEL CADMIUM PLATED DIAMETER SERIES 2 DIMENSIONS AND LOADS AEROSPACE SERIES D NGS ROULEMENTS PO

2、UR STRUCTURES DAERONEFS LUFT- UND RAUMFAHRT ROULEMENTS EN ACIER, CADMIES, A ROTULE, SUR DEUX RANGEES DE BILLES DIMENSIONS ET CHARGES SERIE AEROSPATIALE F LUG WERK LAG ER ZWEI RE I H I G E PENDE LKUG E L LAG E R DURCHMESSER R E I H E 2 M ASZ E UND BE ANSP RU CH UN G EN SERIE DE DIAMTRES 2 AUS STAHL-V

3、ERKADMET This industrial standard for the aerospace sector has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published on yellow paper in three equivalent versions (English, French, German). It will be submitted to CEN (Europea

4、n Committee for Standardization) as a draft European Standard. ,- 1 - -_-I Approved by The equivalent versions in French and German languages 1. COMIT DE NORMALISATION can be supplied by B.N.A.E., 8, rue Moreau-Vauthier Of A.E.C.M.A. 1981-06-30 92100 BOULOGNE-BILLANCOURT - FRANCE, , a ,CEN PREN20Lb

5、82 3Li04587 0007700 8 W cr. prEN 2016 Page 2 CONTENTS . - 1 SCOPE AND FIELD OF APPLICATION 2 REFERENCES 3 DEFINITIONS 4 SYMBOLS 5 MATERIALS 6 PROTECTION 7 LUBRICATION 8 REQUIRED CHARACTERISTICS 9 DESIGNATION 10 MARKING 11 TECHNICAL SPECIFICATION 1 2 3 4 5 6 7 CEN PREN201b 82 3904584 0007701i T - - p

6、rEN2016 Page 3 A.E.C.M.A. STANDARD prEN2016 BEARIKGS AIRFRAME ROLLING DOUBLE ROW SELF ALIGNING BALL BEARINGS IN STEEL CADMIUM PLATED-DIAMETER SERIES 2- DIMENSIONS AND LOADS SCOPE AND FIELD OF APPLICATION This standard specifies the characteristics, ci double row self aligning ball bearings of diamet

7、er series 2 1)designed to withstand only slow rotations and oscillations under load. They are intended for use between fixed and moving parts of the aircraft structure and their control mechanisms. They shall be used in the temperature range -54 to 4-121 “C (grease code A) or -54 to 4-177 “G (grease

8、 code B). REFERENCES ISO/R ISO/R EN2 03 EN2 14 5/1- 1968, Rolling bearings - Radial bearings - Boundary dimensions - General plan - Part 1 : Diameter series 8,9,0,1,2,3 and 4. 201- 1961, Rolling bearings - Radial internal clearance in unloaded radial groove type ball bearings with cylindrical bore -

9、Values. , Sheel FE-PL31, Hardened and tempered, Bars. , Cadmium plating of steels RmX450 MPa 2). EN2063 Bearings, airframe rolling - Technical Specification. DEFINITIONS Self aligning ball bearings, full complement (without cage), double row. SY mo LS _- - Ads ADs Admp ADmp CS Fa Fa max Fr Por YS =

10、the deviation of a single bore diameter = the deviation of a single outside diameter = single plane mean bore diameter deviation = single plane mean outside diameter deviation = permissible static radial load = bearing axial load = axial component of actual bearing load = permissible static axial lo

11、ad = static radial load = static equivalent radial load = coefficient of axial load. MATERIALS Inner ring : Steel EN 2031?), 59 to 64 HRC Outer ring : Steel EN 20313), 59 to 64 HRC Balls : Steel EN 20313), 59 to 64 HRC Shields : Corrosion resisting material Seals : Polytetraf luoroethylene (PTFE); o

12、r polytetrafluoroethylene (PTFE) - glass fibre reinforced plastic ma teria 1. PROTECTION Cadmium plating (passivation optional) EN21412), 5 to 12 um of the inner and i outer rings; the bore and raceways- are not cadmium plated. LUBRICATION Ester type extreme pressure grease (Code A), or Synthetic hv

13、drocarbon type extreme pressure grease, general use (Code B), see EN263. . J I 1-J-see- ISO/R i/l. - -7 - - - 2) in preparation ,- 3) Por new designs, bearings in corrosion resisting steel should be used for preference; see EN2017 15 17 20 15 35 17 40 20 47 - CEN PREN20Lb 82 m 340Lt587 0009902 L m p

14、rEN2016 Page 4 8 REQUIRED CHARACTERISTICS 8. 1 - Dimensions - Tolerances - Clearances - Loads - Mass. Configuration shall correspond with the figure. Dimensions shall correspond with the table and apply after cadmium plating, Bearings can be assembled with either seals or shields, 8.2 - Surface roug

15、hness, Ra = 0,2 pm for the raceway and rolling elements. Ra = 0,8 prn for the bore side faces and cylindrical outer surface. These values apply prior to cadmium plating, with Bearing - shields Code P C I Detail W of chamfer applicable to bore and outer surface Bearing with seals Code E FIGURE TABLE

16、Dimensions in millimetres Tolerances pm l. Permissible static radial load CS kN Radial internal clearance normal group 3 group Pm pm 1) 1) dl * -. I -. Mass kg/100C parts N rv B O - 0,12 C O - 0,12 a D - 16 19 Ads ADS - +2 - 10 12 14 15 t 10 to 20 30 14.1 57 4-2 - 10 2 to 13 3 to 18 5 to 20 10 4-2 -

17、 11 08 1 8 124 10 12 +3 - 11 16,l 62 1 8,8 75 24.3 110 14 16 .18 20 22 24 13 to 23 +3 - 14 - i- 3 - 13 I I I CS YS Fa max. - - where Ys = 3,2 Equivalent static radial load Por . Load Por resulting from radial and axial loads is calculated according to formula por = Fr f 3,2 Fa and shall be less than

18、 or equal to load C, given in the table, see EN2063. For ultimate static loads, see EN2063. 7- -. 1) See ISO/R 201 prEN 2016 Page 5 9 DESIGNATION Each bearing shall only be designated as in the following example : Des cript: ion block BEARING Identity block Number of EN standard I A = code for ester

19、 type grease N = code for internal radial clearance, normal group with seals 08 = Diameter .code for d (see table -1 - where the following codes are applied : Greases : A = ester type grease B synthetic hydrocarbon type grease Types : E = with seals P = with shields Clearances: L = internal radial c

20、learance, group B N = internal radial clearance, normal group Note : If necessary, the originator code S 9005 may be introduced between the description block and the identity block. 10 MARKING In addition to the manufacturers own marking, each bearing shall be marked, on one side face only using the identity block as defined in clause 9 of this standard. Marking position and method are at the manufacturers option. 11 TECHNICAL SPECIFICATION Bearings supplied to this standard shall conform with the requirements of EN2 063, 7, y-=- -

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