1、 STD-AECMA PREN LiU3h-ENGL L79b 30L23LL O033730 12Li 0 Edition approved for publication 1996-06-28 AECMA STANDARD NORME AECMA AECMA NORM Comments should be sent within six months after the date of publication to AECMA Gulledelle 94 B-1200 BRUXELLES prEN 4036 Edition P 1 June 1996 PUBLISHED BY THE EU
2、ROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledelle 94 - 8-1200 BRUXELLES - Tel. (321 2 775 81 10 - Fax. (32) 2 775 81 11 ICs : ENGLISH VERSION Aerospace series Rod ends, adjustable with self-aligning double row ball bearing and threaded shank in corrosion resisting steel, reduced internal
3、 radial clearance Dimensions and loads Srie arospatiale Luft- und Raumfahrt Embouts rglables Einstellbare senkpfe rotule sur deux ranges de billes et tige filete en acier rsistant la corrosion, jeu radial rduit Dimensions et charges mit zweireihigem Pendelkugellager und Gewindeschaft aus korrosionsb
4、estndigem Stahl, reduzierte radiale Lagerluft MaBe und Belastungen This “Aerospace Series” Prestandard has been drawn up under the responsibility of AECMA (The European Association of Aerospace Industries). It is published on green paper for the needs of AECMA-Members. It has been technically approv
5、ed by the experts of the concerned Technical Committee following comment by the Member countries. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re- identification of
6、the standard. After examination and signature of the AECMA Standard Checking Centre INPS) and formal agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardiza tionl for formal vote. t Nota - Extra copies ca
7、n be supplied by B.N.A.E. - Technopolis 54 - 199, rue Jean-Jacques Rousseau - 921 38 ISSY-LES-MOULINEAUX CEDEX CI Chairman Mr Oestreicher 0 aecma 1996 - STD-AECMA PREN LiOjb-ENGL L99b LL2311 0011731 Ob Page 3 prEN 4036 : 1996 1 Scope This standard specifies the characteristics of adjustable rod ends
8、 with self-aligning double row ball bearing with reduced internal radial clearance and threaded shank in corrosion resisting steel, designed to withstand only slow rotations and oscillations under load. They consist of: - a rod end comprising: - circumferential groove to identify location; - either
9、seals or shields; - an optional longitudinal groove for locking purpose; - an inner ring with balls. These rod ends are intended for use with flight control rods or rods for aerospace structures. They are intended to be used in the temperature range: - 54 OC to + 150 OC. However, being lubricated wi
10、th the following greases: - very high pressure grease, ester type (code A), operational range - 73 OC to + 121 OC or - very high pressure grease, synthetic hydrocarbons, general purpose (code E), operational range - 54 OC to + 177 OC (see EN 20671, their field of application when lubricated with cod
11、e A grease is limited to + 121 OC. 2 Normative 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,
12、subsequent amendments 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 1132 IS0 3353 IS0 5855-2 IS0 8074 IS0 8075 EN 2030 EN 2067 E
13、N 2136 EN 2226 Rolling bearings - Tolerances - Definitions Aerospace - Rolled threads for bolts - Lead and runout requirements Aerospace - MJ threads - Part 2: Limit dimensions for bolts and nuts Aerospace - Surface treatment of austenitic stainless steel parts Aerospace - Surface treatment of harde
14、nable stainless steel parts Steel FE-PM43 - Hardened and tempered - Bars D I 150 mm - Aerospace series Aerospace series - Rod ends with self-aligning ball bearings - Technical specification Steel FE-PM42 - 900 MPa I R, I 1100 MPa - Bars De I 100 mm - Aerospace series l) Steel FE-PM43 - Hardened and
15、tempered - Hand and die forgings De I 150 mm - Aerospace series l) EN 2424 TR 3775 Aerospace series - Marking of aerospace products Aerospace series - Bolts and pins - National materials 2, 1) Published as AECMA Standard at the date of publication of this standard 2) Published as AECMA Technical Rep
16、ort at the date of publication of this standard Previous page is blank STD-AECMA PREN 403b-ENGL L77b LOL23LL CIOLL732 TT7 Page 4 prEN 4036 : 1996 3 Symbols The definitions of tolerances and clearances are given in IS0 11 32. Ads = deviation of a single bore diameter Adrnp = single plane mean bore di
17、ameter deviation CS = permissible static radial load Fa max. = permissible static axial load 4 Required characteristics 4.1 Dimensions - Tolerances - Masses Configuration : see figure 1; the bearings are fitted with either seals or shields. Values : see figure 1 and table 1: values after surface tre
18、atment. 4.2 Surfaces roughness Rolling elements and raceway: Ra = 0,2 pm Bore, side faces and cylindrical outer surface: Ra = 0,8 pm For code T values prior to the surface treatment 4.3 Materials Rod ends : steel EN 2136 or TR 3775; heat treated to obtain: - by case hardening, hardening and temperin
19、g a surface hardness of 2 58 HRC on the raceway; - by hardening and tempering to a strength of R, 830 MPa on the whole rod end. Bearing : Inner ring : Steel EN 2030 or EN 2226, 2 58 HRC Balls : Steel EN 2030 or EN 2226,2 58 HRC Seals : Polytetrafluoroethylene (PTFE) or glass fabric reinforced polyte
20、trafluoro- ethylene (PTFE) Shields : Corrosion resisting material 4.4 Surface treatment Rod end Bearing : passivation IS0 8074 : passivation IS0 8075: code T with no surface treatment: no code 4.5 Thread MJ thread to IS0 5855-2, rolled Right hand thread, code R Left hand thread, code L - STDWAECMA P
21、REN LI03b-ENGL 177b LO12311 0011733 933 Page 5 prEN 4036 : 1996 Break sharp edges and corners and remove all burrs and slivers B ,I s - t D I .o) O A-A / _ - Conforms to IS0 3353 r, - Y So*“ Thread Longitudinal groove TYP? 1 Code K Type 2 Code M Type 3 without groove Code N Type with shields Code P
22、Type with seals Code E 1) The acceptance value is the maximum value for the user Figure 1 6“ min. ) x (3 : 1) Break sharp corner NOTE 1 : The circumferential groove and the longitudinal groove over the distance F shall be painted red. NOTE 2 : The installation of seals and shields is at the manufact
23、urers option. S f 0,2 W Mass gipiece REF B H + 0,5 O 33 37 42 48 LMN +Oll o IO,5 o -0,l 48 1,6 6,6 54 8,O 10,2 2f4 62 73 3,2 12,2 6 1,4 7 2,o 10 35 60 85 130 8,90 14,OO 2,78 16 10,6 4,38 19 12,5 Page 6 prEN 4036 : 1996 Table 1 Dimensions in millimetres dl F 2, Thread min. min. 7,6 MJ 8 x Il00-4h6h 1
24、8 Diameter d Code Nominal Tolerance i- 12 10 I 10 13,6 1 MJ 14 x 1,50:4h6h 1 31 (continued) (concluded) - r2 I0,5 6,5 :ode I G 3, 4-T min. 07 37 1) See IS0 5855-2. 2) F = minimum length of engaged thread: included thickness of lock washer and height of nut. 3) G = minimum length of useful thread. -
25、4.6 Loads, starting torques and clearances See table 2. Table 2 Starting Permissible static loads torque 2) Swivelling torque 21 max. Clearance 2) Diameter code max. Radial load Axial load Radial Axial $ N.m 4,70 I 1,47 I 6,5 I 4,3 05 0,15 06 6,75 I 2,11 I 7 I 4,6 08 10 1) Definition and testing for
26、 ultimate static loads as per EN 2067, annex E. 2) Definition and testing as per EN 2067. STD-AECMA PREN Li03b-ENGL L77b LOL23LL 0033735 70b Description block ROD END Page 7 prEN 4036 : 1996 Identity block EN4036L05PKAT 5 Designation EXAMPLE: t- Number of this standard Code letter for thread (see 4.
27、5) Diameter code (see table 1) Code letter for shields or seals (see figure 1) 1 NOTE: If necessary, the originator code 19005 shall be placed between the description block and the identity block. 6 Marking EN 2424, style A Marking position and method are at manufacturers option. 7 Technical specification EN 2067
