ASD-STAN PREN 2067-1989 Aerospace Series Rod-Ends with Self-Aligning Ball Bearings Technical Specification (Issue P 1)《航空航天系列 带自调位滚珠轴承的连杆端 第P1版》.pdf
《ASD-STAN PREN 2067-1989 Aerospace Series Rod-Ends with Self-Aligning Ball Bearings Technical Specification (Issue P 1)《航空航天系列 带自调位滚珠轴承的连杆端 第P1版》.pdf》由会员分享,可在线阅读,更多相关《ASD-STAN PREN 2067-1989 Aerospace Series Rod-Ends with Self-Aligning Ball Bearings Technical Specification (Issue P 1)《航空航天系列 带自调位滚珠轴承的连杆端 第P1版》.pdf(18页珍藏版)》请在麦多课文档分享上搜索。
1、A.E.C.M.A. STANDARD NORME A.E.C.M.A. A.E.C.M.A. NORM Edition approved for publication Comments should be sent within six months after the date of publication decision 88, Bd. Malesherbes 5th December 1989 A.E.C.M.A. 75008 PARIS * FRANCE prEN 2067 Issue P 1 December 1989 C 1 Chairman Mr. MOUTARDE DIT
2、 PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATRIEL AROSPATIAL 88, boulevard Malesherbes, 75008 PARIS - TL. 45-63-82-85 UDC : 629.7.05 : 621.827.1 : 621.85.053 : 621.828 : 658.56 Key words : Aeronautical industry, aircraft control, rod-end, rod- end with self-aligning ball bearing, ball, thread
3、ed shank, specification ENGLISH VERSION Aerospace series Rod-ends with self-aligning ball bearings Technical Specif cat ion Srie arspatiale Embouts rotule sur billes Spcification technique Luft- und Raumfahrt Osenkopfe mit Pendelkugellager Technische Lieferbedingungen This Aerospace Series pre-stand
4、ard has been drawn up under 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 approvedby the experts of the concerned Commission following comment by the Member countries
5、. Subsequent to the publication 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 fo
6、rmal agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for final vote. AECMA PREN2067 89 LOL23Ll OOOL71.19 5 m prES 2067 Page 2 Con tents 1 Scope and field of application 2 References 3 Def ini
7、tions 4 Required characteristics, inspections and test methods 5 Quality assurance 6 Acceptance condi t i ons 7 Packaging 8 Certificate of conformity Annexe A Retent-ion tests for seals and shields Annexe B Sand and dust test Annexe C Temperature test Annexe D Verification of internal clearances Ann
8、exe E Verification of permissible and ultimate static loads Annexe F Lubricants for rod ends with self-aligning ball bearings - essen t i a I ch aracteri st i cs prEN 2067 Page 3 1 Scope and field of application This Standard specifies the required characteristics, Inspections and tests, quality ass
9、urance, and conditions for qual ification, acceptance and del ivery of the rod ends with self-aligning ball bearings designed to withstand (under load) small oscilla- tions and slow rotations only. This Standard appl es to al I rod ends with self-al igning bal I bearings, i.e,EN 2492 and . EN 3541 .
10、 It may be appl icable when mentioned in a product standard or in a design specification. 2 References IS0 5855/1 , Aerospace constructions - MJ Thread - Part 1 : General requirements IS0 5855/2 Aerospace constructions - MJ Thread - Part 2 : Limit dimensions for nuts and bolts EN 2000 and supply of
11、EN standard aerospace products EN 2492 Dimensions and loads - Aerospace series EN 3541 Aerospace series - Rod ends with self-aligning ball bearingSj with threaded shank - Dimensions, torques, clearances and loads. , Aerospace series - Quality assurance requirernTqts for the manufacture , Rod ends wi
12、th self-aligning ball bearing with threaded shank - 9.5 3 Definitions 3.1 Rod ends with self-aligning ball bearings Comprising: - A head containing a self-aligning ball bearing, - A threaded shank with circular safety groove, which may have a longitudinal groove for the locking device. 3.2 Surface d
13、iscontinu it es - Crack: Break in the material which may exten intercrystal I ine or transcrystal I ine - Score or scratch: Open surface defect result - Lap: Surface defect where particles of metal then rolled or forged into the surface. - Seam: Unwelded fold which appears as an open 3.3 internal cl
14、earances 3.3.1 Radia Total value body of the 3.3.2 Axial in all directions and be n character, ng from a tearing of the metal. or sharp edges are folded over and defect in the material. (Gr) of possible radial displacements of the inner ring in relation to the rod end. (Ga) Total value of possible a
15、xil displacements of the inner ring in rela of the rod end. 3.4 Starting torque at zero load Maximum torque required to start. the rotation of the inner ring, with rod end he I d stat onary . 3.5 Del ivery batch ion to the body the body of the This consfsts of rod ends with the same identity block,
16、which may come from different product on batches. 1) Published as AECMA standard at the date of publication of the present standard. 2) In preparation at the date of publication of the present standard, j AECMA PREN20b7 89 1012311 0001951 3 prEN 2067 Page 4 4 Required characteristics, inspections an
17、d test methods See table 1 Table 1 Characteris+ics 4.1 Materials t to I erances 4.3 Masses C.5 Surface appearanc 1.5.1 of rod end body S.2iof the inner ring Iana bal Is I i 4.5 !Hardness I 4.7 Surface rough- 1 ness 4.8 ISurface treat- ment Inspections and test methods Q 1) Requirements Shall conform
18、 with product Chemical analysis or certi- X standards. f cate issued by semi-f ini- shed product manufacturer, Shall conform with product Suitable measuring instru- standards. men ts . Shal I conform with product Suitable methods. standards. Shal I conform with product Visual examination. standards.
19、 It shall be legible and shall not adversely affect the material or the func- tioning of +he i.03 end. ! X - X - X I I I No surface discontinuity Magnetic inspection for except those permitted examp I e in 4.9. X I I No surface discontinuity Magnetic inspection for liable to alter the example. chara
20、cteristics and endurance of these parts. X Shal I confora with product Suitable processes standards. ring insTruments. I Shal I conform with product Suitable measuring instrume or vi sua I-tacti I e sampi es. i standa6ds. I I I Shal I conform with product - Visual examination. standards. - As per su
21、rface treatment standard. X 1) Q = Qualification test A = Acceptance test 2). These inspections shall be made in the absence of surface treatment, which, for the purposes of quai if cation, may be removed by a chemical process. 4.12 .12. ,*12. .12. - Requ irements Thread tapping shal I con- form wit
22、h product stan- dards. - No discontinuity below effective diameter . - Discontinuities not to exceed 20% of height of base thread, al lowed above effective diame- ter (see Fig. 2). - Surf ace irregu i ar i ti es permitted on crest of threads (see Figure 1). Characteri st ics Inspections and test met
23、hods Q Visual examination X Examinati37 of micrographic X section : - for qualification: on finished parts - for acceptance: by sampl ing during manufac- ture rhread di sconti- iuities ,Visual examination after re modal of seals and shields, 3rooves X- -ubr i cati on - The seals and shields shal I b
24、e fitted correctly on the rod end body, in such a way that the func- tioning of the self-ai igning bai I bearing is not affected. Annexe A has been comple- ted, the seals and shield:; shal I not have loosened 01 become deformed. - When the inspection of Seals and shield: ietenti on Vi sua I exami na
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