ASD-STAN PREN 2755-2008 Aerospace Series Bearings Spherical Plain in Corrosion Resisting Steel with Self-Lubricating Liner Elevated Loads at Ambient Temperature Technical Specifica.pdf
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1、ASD STANDARD NORME ASD ASD NORM prEN 2755 Edition P 3 January 2008 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONAvenue de Tervuren, 270 - B-1150 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 763 3565 - www.asd-stan.orgICS: Supersedes edition P 2 September
2、1995 Descriptors: ENGLISH VERSION Aerospace series Bearings, spherical plain in corrosion resisting steel with self-lubricating liner Elevated load at ambient temperature Technical specification Srie arospatiale Rotules, en acier rsistant la corrosion garniture autolubrifiante Srie charge leve tempr
3、ature ambiante Spcification technique Luft- und Raumfahrt Gelenklager, aus korrosionsbestndigem Stahl mit selbstschmierender Beschichtung Reihe hohe Belastungen bei Raumtemperatur Technische Lieferbedingungen This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN
4、(The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the
5、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 review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (Eur
6、opean Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Editi
7、on approved for publication 31 January 2008 Comments should be sent within six months after the date of publication to ASD-STAN Mechanical Domain Copyright 2008 by ASD-STAN prEN 2755:20082 Contents Page Foreword2 1 Scope 3 2 Normative references 3 3 Terms and definitions .4 4 Requirements characteri
8、stics, inspection and test method .5 5 Quality assurance16 5.1 Production qualification16 5.2 Acceptance conditions .17 6 Packaging.17 7 Certificate of compliance17 Annex A (normative) Verification of permissible and ultimate static loads .22 A.1 Permissible radial static load (Cs)22 A.2 Ultimate ra
9、dial static load .22 A.3 Permissible axial static load (Ca)23 A.4 Ultimate axial static load.23 Annex B (normative) Verification of dynamic radial load (C25).26 B.1 Principle26 B.2 Method 26 Annex C (normative) Fluids Essential characteristics.28 C.1 Fuel for turbine aero engine .28 C.2 Fluids for d
10、e-icing circuit28 C.3 Hydraulic fluids28 Annex D (normative) Measurement of the peel strength of the liner.29 D.1 Principle29 D.2 Method 29 Annex E (normative) Simplified qualification procedure30 E.1 Rules for application .30 E.2 Choice of references .30 E.3 Rules for qualification .31 E.4 Plain be
11、aring distribution .32 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Mechanical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publicati
12、on. prEN 2755:2008 3 1 Scope This standard specifies the required characteristics, inspection and test methods, qualification and acceptance conditions for spherical plain bearings in corrosion resisting steel, with self-lubricating liner, for elevated loads at ambient temperature intended for use i
13、n fixed or moving parts of the aircraft structure and control mechanisms. This standard applies whenever referenced. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated ref
14、erences, the latest edition of the referenced document (including any amendments) applies. ISO 11078, Aerospace Aircraft de-icing/anti-icing non-Newtonian fluids, ISO type II. EN 2064, Aerospace series Bearings spherical plain in corrosion resisting steel with self lubricating liners Technical speci
15、fication. EN 2584, Aerospace series Bearings, spherical plain in corrosion resisting steel with self-lubricating liner Narrow series Elevated load at ambient temperature Dimensions and loads. EN 2585, Aerospace series Bearings, spherical plain in corrosion resisting steel with self-lubricating liner
16、 Wide series Elevated load at ambient temperature Dimensions and loads. EN 3048, Aerospace series Bearings, spherical plain in corrosion resisting steel with self-lubricating liner Light series Elevated load at ambient temperature Dimensions and loads. EN 4037, Aerospace series Bearings, spherical p
17、lain in corrosion resisting steel with self-lubricating liner reduced starting torque Light series Dimensions and loads. 1)EN 4038, Aerospace series Bearings, spherical plain in corrosion resisting steel with self-lubricating liner reduced starting torque Normal narrow series Dimensions and loads. 1
18、)EN 4039, Aerospace series Bearings, spherical plain in corrosion resisting steel with self-lubricating liner reduced starting torque Normal wide series Dimensions and loads. 1)EN 4040, Aerospace series Bearings, spherical plain in corrosion resisting steel with self-lubricating liner with wide inne
19、r ring Elevated loads at ambient temperature Dimensions and loads. EN 4613, Aerospace series Bearings, spherical plain, in corrosion resisting steel, with self-lubricating liner Narrow series Dimensions and loads Inch series. 1)EN 4614, Aerospace series Bearings, spherical plain, in corrosion resist
20、ing steel, with self-lubricating liner Wide series Dimensions and loads Inch series. 1)EN 6096, Aerospace series Bearings, spherical plain, in corrosion resisting steel, with self-lubricating liner and extra wide inner ring Dimensions and loads Inch series.2) 1) Published as ASD Prestandard at the d
21、ate of publication of this standard. 2) In preparation at the date of publication of this standard. prEN 2755:20084 EN 9100, Aerospace series Quality management systems Requirements (based on ISO 9001:2000) and Quality systems Model for quality assurance in design, development, production, installat
22、ion and servicing (based on ISO 9001:1994). EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts. EN 10204, Metallic products Types of inspection documents. TR 4475, Aerospace series Bearings and mechanical transmissions for airframe applications
23、Vocabulary. 3)3 Terms and definitions For the purposes of this document, the terms and definitions given in TR 4475 and the following apply. 3.1 spherical plain bearings with self-lubricating liner a spherical plain bearing consisting of two concentric rings between which is interposed a self-lubric
24、ating liner which is bonded or moulded onto the spherical inner surface or the spherical outer surface 3.2 Surface discontinuities 3.2.1 score, scratch open surface defect 3.2.2 lap surface defect where particles of metal or sharp edges are folded over and then rolled or forged into the surface 3.2.
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