1、BRITISH STANDARDBS EN 4033:2007Aerospace series Bearings, airframe rolling Rigid single row ball bearings in corrosion resisting steel Diameter series 8 and 9, reduced internal radial clearance Dimensions and loadsThe European Standard EN 4033:2007 has the status of a British StandardICS 49.035g49g5
2、0g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 4033:2007This British Standard was published under the authority of the Standards Policy and Strate
3、gy Committee on 31 July 2007 BSI 2007ISBN 978 0 580 56302 7National forewordThis British Standard is the UK implementation of EN 4033:2007.The UK participation in its preparation was entrusted to Technical Committee MCE/7, Rolling bearings.A list of organizations represented on this committee can be
4、 obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No
5、. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 4033June 2007ICS 49.035English VersionAerospace series - Bearings, airframe rolling - Rigid single rowball bearings in corrosion resisting steel - Diameter series 8 and9, reduced internal radial clearance - Dimensions and loadsSrie aro
6、spatiale - Roulements pour structures daronefs- Roulements en acier rsistant la corrosion, rigides unerange de billes - Sries de diamtres 8 et 9, jeu radialrduit - Dimensions et chargesLuft- und Raumfahrt - Flugwerklager - EinreihigeRillenkugellager aus korrosionsbestndigem Stahl -Durchmesserreihen
7、8 und 9, reduzierte radiale Lagerluft -Mae und BelastungenThis European Standard was approved by CEN on 16 March 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without an
8、y alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by
9、 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germ
10、any, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGMana
11、gement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 4033:2007: E2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Symbols and abbreviations 5 4 Required characteristics
12、.5 5 Designation 7 6 Marking .8 7 Technical specification .8 EN 4033:20073 Foreword This document (EN 4033:2007) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this As
13、sociation, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endors
14、ement, at the latest by December 2007, and conflicting national standards shall be withdrawn at the latest by December 2007. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for iden
15、tifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Gre
16、ece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 4033:20074 1 Scope This standard specifies the characteristics of rigid single row ball bearings, in
17、corrosion resisting steel, reduced internal radial clearance, diameter series 8 and 9 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 are intended to be us
18、ed in the temperature range: 54 C to 150 C. However, being lubricated with the following greases: very high pressure grease, ester type (code A), operational range 73 C to 121 C or very high pressure grease, synthetic hydrocarbons, general purpose (code B), operational range 54 C to 177 C (see EN 32
19、80), their field of application when lubricated with code A grease is limited to 121 C. 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 references, the latest edition o
20、f the referenced document (including any amendments) applies. ISO 15, Rolling bearings Radial bearings Boundary dimensions, general plan. ISO 1132-1, Rolling bearings Tolerances Part 1: Terms and definitions. ISO 8075, Aerospace Surface treatment of hardenable stainless steel parts. EN 2030, Steel F
21、E-PM43 Hardened and tempered Bars D 150 mm Aerospace series. 2)EN 2226, Steel FE-PM43 Hardened and tempered Hand and die forgings De 150 mm Aerospace series. 2)EN 2424, Aerospace series Marking of aerospace products. EN 3280, Aerospace series Bearings, airframe rolling, rigid or self-aligning Techni
22、cal specification. 1) See ISO 15. 2) Published as ASD Standard at the date of publication of this standard. EN 4033:20075 3 Symbols and abbreviations The definitions of tolerances and clearances are given in ISO 1132-1. dmp= single plane mean bore diameter deviation Dmp= single plane mean outside di
23、ameter deviation Cs= permissible static radial load Famax. = permissible static axial load Ga= axial internal clearance Gr= radial internal clearance Kea= radial runout of assembled bearing outer ring Kia= radial runout of assembled bearing inner ring 4 Required characteristics 4.1 Dimensions Tolera
24、nces Masses Configuration : see Figure 1; the bearings are fitted with either seals or shields. Values : see Figure 1 and Table 1: values after surface treatment. 4.2 Surface roughness Rolling elements and raceways: Ra= 0,2 m Bore, side faces and cylindrical outer surface: Ra= 0,8 m For code T, valu
25、es prior surface treatment 4.3 Materials Inner ring : Steel EN 2030 or EN 2226, 58 HRC Outer ring : Steel EN 2030 or EN 2226, 58 HRC Balls : Steel EN 2030, 58 HRC Shields : Corrosion resisting material Seals : Polytetrafluoroethylene (PTFE) or glass fabric reinforced polytetrafluoroethylene (PTFE) 4
26、.4 Surface treatment Passivated ISO 8075: Code T With no surface treatment: no code EN 4033:20076 Type with shields Code P Type with seals Code E NOTE 1 The installation of seals and shields is at manufacturers option. NOTE 2 The seals shall not extend beyond “B“. Figure 1 Table 1 Dimensions in mill
27、imetres Diameter d B D d1r Mass Code Nominal Tolerance m g/pieces dmpDmp0 0,12min. 10 10 22 13,0 11 12 12 6 24 15,0 13 15 15 28 17,6 16 17 17 0 8 0 9 30 19,6 18 20 20 32 23,0 20 25 25 37 28,1 23 30 30 0 10 42 33,1 26 35 35 0 11 47 38,3 30 40 40 52 43,3 38 50 50 0 12 7 65 53,0 55 60 60 0 15 0 13 10 7
28、8 63,5 0,3 to 0,8 100 EN 4033:20077 4.5 Loads, starting torques and clearances See Table 2. Table 2 Permissible static loads kN Clearance bm Runout tolerances max. m Starting torque bmax. mN.m Axial load aRadial load aAxialmax. Radial Axial Radial With shields With seals Diameter code Famax. CsGaGrS
29、iaSeaKiaKea10 4,8 10,6 4,5 12 12 5,6 12,3 5,0 13 15 7,4 16,2 5,5 14 17 8 17,6 2 to 7 6,0 15 20 7,9 17,3 6,5 16 25 9,8 21,5 8,5 18 30 11,1 24,5 14,0 20 35 12,9 28,4 18,0 23 40 14,5 31,8 100 22,0 29 50 19,6 43,1 120 32,0 47 60 31,8 70,0 150 2 to 9 40 40 25 40 55,0 77 aDefinition and testing for ultima
30、te static loads as per EN 3280, Annex F. bDefinition and testing as per EN 3280. 5 Designation EXAMPLE Description block BEARING Identity block EN4033A10PT Number of this standard Code letter for grease type (see 1) Diameter code (see Table 1) Code for shields or seals (see Figure 1) Surface treatme
31、nt (see 4.4) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. EN 4033:20078 6 Marking EN 2424, style A Marking position and method are at manufacturers option. 7 Technical specification See EN 3280 EN 4033:2007blankBS EN 4033:2007BSI389 Chiswick
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