Aerospace series - Bearings, precision ball in corrosion resisting steel for instruments and equipment - Technical specification

This standard specifies the required characteristics, inspection and test methods, qualification and acceptance conditions for precision ball bearings, in corrosion resisting steel, with a nominal bore
diameter £ 8 mm, used for aerospace instruments and equipment.
It is applicable whenever referenced.

Luft- und Raumfahrt - Präzisionskugellager aus korrosionsbeständigem Stahl für Instrumente und Geräte - Technische Lieferbedingungen

Diese Norm legt die Anforderungen, Prüfverfahren, Qualifikations- und Annahmebedingungen für Präzisions-kugel-lager aus korrosionsbeständigem Stahl mit einem Bohrungs-Nenndurchmesser £ 8 mm fest, die für Instrumente und Geräte der Luft- und Raumfahrt verwendet werden.
Sie ist immer dann anzuwenden, wenn auf sie verwiesen wird.

Série aérospatiale - Roulements à billes de précision en acier résistant à la corrosion pour instruments et équipements - Spécification technique

La présente norme spécifie les caractéristiques requises, les méthodes de contrôle et d'essai, les conditions de qualification et de réception des roulements à billes de précision, en acier résistant à la corrosion, de diamètre nominal d'alésage £ 8 mm, pour instruments et équipements aéronautiques.
Elle s'applique chaque fois qu'elle est citée en référence.

Aerospace series - Bearings, precision ball in corrosion resisting steel for instruments and equipment - Technical specification

General Information

Status
Published
Publication Date
23-Oct-2001
Technical Committee
Drafting Committee
Current Stage
9093 - Decision to confirm - Review Enquiry

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Standard
EN 2130:2004
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Bearings, precision ball in corrosion resisting steel for instruments and equipment - Technical specificationLuft- und Raumfahrt - Präzisionskugellager aus korrosionsbeständigem Stahl für Instrumente und Geräte - Technische LieferbedingungenSérie aérospatiale - Roulements a billes de précision en acier résistant a la corrosion pour instruments et équipements - Spécification techniqueAerospace series - Bearings, precision ball in corrosion resisting steel for instruments and equipment - Technical specification49.035Sestavni deli za letalsko in vesoljsko gradnjoComponents for aerospace constructionICS:Ta slovenski standard je istoveten z:EN 2130:2001SIST EN 2130:2004en01-maj-2004SIST EN 2130:2004SLOVENSKI

STANDARD
SIST EN 2130:2004

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 2130October 2001ICS 49.035English versionAerospace series - Bearings, precision ball in corrosion resistingsteel for instruments and equipment - Technical specificationSérie aérospatiale - Roulements à billes de précision enacier résistant à la corrosion pour instruments etéquipements - Spécification techniqueLuft- und Raumfahrt - Präzisionskugellager auskorrosionsbeständigem Stahl für Instrumente und Geräte -Technische LieferbedingungenThis European Standard was approved by CEN on 15 January 2001.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 any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36

B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 2130:2001 ESIST EN 2130:2004

EN 2130:2001 (E)2ForewordThis European Standard has been prepared by the European Association of Aerospace Manufacturers(AECMA).After inquiries and votes carried out in accordance with the rules of this Association, this Standard hasreceived the approval of the National Associations and the Official Services of the member countries ofAECMA, prior to its presentation to CEN.This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, at the latest by April 2002, and conflicting national standards shall be withdrawn atthe latest by April 2002.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark,Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal,Spain, Sweden, Switzerland and the United Kingdom.SIST EN 2130:2004

EN 2130:2001 (E)31ScopeThis standard specifies the required characteristics, inspection and test methods, qualification andacceptance conditions for precision ball bearings, in corrosion resisting steel, with a nominal borediameter

8 mm, used for aerospace instruments and equipment.It is applicable whenever referenced.2Normative referencesThis 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 listedhereafter. For dated references, subsequent amendments to or revisions of any of these publications apply tothis European Standard only when incorporated in it by amendment or revision. For undated references, thelatest edition of the publication referred to applies (including amendments).ISO 1132-1Rolling bearings – Tolerances – Part 1: Terms and definitionsISO 2859-1Sampling procedures for inspection by attributes – Part 1 : Sampling schemes indexed byacceptance quality limit (AQL) for lot-by-lot inspectionISO 3290Rolling bearings – Balls – Dimensions and tolerancesEN 2079Aerospace series – Bearings, precision ball, with flange in corrosion resisting steel, forinstruments and equipment – Dimensions and loadsEN 3042Aerospace series – Quality assurance – EN aerospace products – Qualification procedureEN 3446Aerospace series – Bearings, precision ball without flange in corrosion resisting steel, forinstruments and equipment – Dimensions and loadsEN 10204Metallic products – Types of inspection documents3DefinitionsFor the purposes of this standard, the following definitions apply:3.1Precision ball bearing3.1.1Shielded rolling bearingA bearing whose rolling elements and raceways are protected with shields attached to one of the rings andseparated from the other by a small space.3.1.2Sealed rolling bearingA bearing whose rolling elements and raceways are completely enclosed by seals attached to the outer ringand rubbing on the other.SIST EN 2130:2004

EN 2130:2001 (E)43.2Torques3.2.1Starting torqueMaximum torque required to start the rotation of one ring, with the other ring held stationary.3.2.2Average torqueArithmetical average of torque values recorded during the test cycle.3.2.3Test loadDuring the test, it is the specified axial load applied in the bearing rotational axis.3.3Load ratings3.3.1Basic dynamic radial load ratingThat constant stationary radial load which a rolling bearing can theoretically endure for a basic rating life of1 000 000 revolutions.3.3.2Basic static radial load ratingThat static radial load which corresponds by calculation to a stress of 4 200 MPa at the most heavily stressedrolling element/raceway contact centre.3.4Delivery batchThis consists of bearings with the same identity block, which may come from different production batches.3.5Dimensional and geometrical parametersAccording to ISO 1132-1SIST EN 2130:2004

EN 2130:2001 (E)54Required characteristics, inspection and test methodsSee table 1Table 1ClauseCharacteristicsRequirementsInspection and test methodsQ aA b4.1MaterialsIn accordance with theproduct standards ordesign documentationChemical analysis or certificate3.1 according to EN 10204,issued by semi-finished productmanufacturer.XX4.2DimensionsIn accordance with theproduct standards ordesign documentationThe measurements shall becarried out at a temperaturebetween 20 C and 25 C, with arelative humidity less than 55 %.Bearings shall be placed in thisatmosphere at least 1 h beforethe beginning of measurements.On bearings with shields or seals,the measurement of the externaldiameter shall be done aftershields or seals have been fitted.XX4.3MassesIn accordance with theproduct standards ordesign documentationSuitable methodsX4.4MarkingIn accordance with theproduct standards ordesign documentationIt shall be legible andshall not adversely affectthe material or the func-tioning of the bearing.Bearings may have nomarking. In this event allthe marking informationshall be marked on thepackaging.Visual examinationXX4.5HardnessIn accordance with theproduct standards ordesign documentationSuitable processes and measur-ing instrumentsXX4.6SurfaceroughnessIn accordance with theproduct standards ordesign documentationSuitable measuring instrumentsor visual-tactile samples cXX4.7BallsIn accordance with thegrade 5 requirements ofISO 3290According to ISO 3290X(continued)SIST EN 2130:2004

EN 2130:2001 (E)6Table 1 (continued)ClauseCharacteristicsRequirementsInspection and test methodsQ aA b4.8LubricationLubricant shall conformwith annex A.Certificate of compliance issuedby lubricant manufacturerX4.9Seals(for sealedbearings)and shields(for shieldedbearings).4.9.1RetentionShields may or may notbe removable. Theirinstallation on the outerring shall not affect itslimiting dimensions.When shields and sealsare submitted to normalloading and functioningconditions:– They shall notprotrude beyondlateral faces of therings;– They shall not be incontact with the cageor the balls;– They shall remainfastened at the outerring.Visual examinationXX4.9.2SealingSeals shall:– rub on the inner ringand retain thelubricant;– prevent the intro-duction of foreign par-ticles.Visual examinationXX(continued)SIST EN 2130:2004

EN 2130:2001 (E)7Table 1 (continued)ClauseCharacteristicsRequirementsInspection and test methodsQ aA b4.10MagnetismAfter demagnetization,residual magnetism shallnot exceed 200 µwhatever the angularpo

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