SIST EN 4265:2014
(Main)Aerospace series - Bearing spherical plain, metal to metal in corrosion resisting steel - Wide series - Dimensions and loads - Inch series
Aerospace series - Bearing spherical plain, metal to metal in corrosion resisting steel - Wide series - Dimensions and loads - Inch series
This European Standard specifies the characteristics of spherical plain bearings, metal to metal, in corrosion
resisting steel, passivated, wide series, inch series for aerospace applications.
They are intended for use in fixed or moving parts of the aircraft structure and their control mechanisms.
They shall be used in the temperature range - 54 °C to 150 °C. As they are lubricated by means of the
following greases:
Code A: Grease as per MIL-PRF-23827C, operating temperature range -73 °C to 121 °C.
Code B: Grease as per MIL-PRF-81322G, operating temperature range - 54 °C to 177 °C.
The range of application for bearings lubricated with grease per code A is limited to 121 °C.
In both cases the spherical surface of the outer or inner ring have to be provided with a dry-film lubricant as
per MIL-PRF-46010G or equivalent (anti-seizing protection).
The slide hole treatment either at the outer ring or inner ring.
Luft- und Raumfahrt - Gelenklager, Metall auf Metall aus korrosionsbeständigem Stahl - Breite Reihe - Maße und Belastungen - Inch Reihe
Diese Norm legt die Eigenschaften von Gelenklagern, Metall auf Metall, aus korrosionsbeständigem Stahl, passiviert, breite Reihe, Inch-Reihe für die Anwendung in der Luft und Raumfahrt fest.
Sie sind für die Verwendung an starren oder beweglichen Flugwerkteilen und deren Betätigungsvorrichtungen bestimmt.
Sie sind im Temperaturbereich von 54 °C bis 150 °C zu verwenden. Da sie mit den folgenden Schmierfetten geschmiert werden:
Kennbuchstabe A: Schmierfett wie MIL-PRF-23827C, Betriebstemperaturbereich 73 °C bis 121 °C.
Kennbuchstabe B: Schmierfett wie MIL-PRF-81322G, Betriebstemperaturbereich 54 °C bis 177 °C.
Der Anwendungsbereich für Lager, die mit Schmierfett mit dem Kennbuchstaben A geschmiert werden, ist auf 121 °C begrenzt.
In beiden Fällen muss die Kugeloberfläche (sphärische Laufbahn) des Außen- oder Innenringes mit einem Trockenfilmschmierstoff wie MIL PRF 46010G oder ähnlich geschützt werden (Schutz vor Festfressen).
Die Gleitbahnbehandlung erfolgt entweder auf dem Außen- oder Innenring.
Série aérospatiale - Rotules lisses, métal à métal en acier résistant à la corrosion - Série large - Dimensions et charges - Séries en inches
La présente Norme européenne spécifie les caractéristiques des rotules lisses, métal à métal, en acier résistant à la corrosion, passivé, série large, séries en inches, applications aérospatiales.
Elles sont conçues pour être utilisées dans les parties fixes ou mobiles de la structure des aéronefs ou dans les mécanismes de commande.
Elles doivent être utilisées dans une plage de températures de - 54 °C à 150 °C. Elles sont lubrifiées au moyen des graisses suivantes :
Code A : Graisse suivant la MIL-PRF-23827C, utilisées dans une plage de températures de - 73 °C à 121 °C.
Code B : Graisse suivant la MIL-PRF-81322G, utilisées dans une plage de températures de - 54 °C à 177 °C.
La gamme d'application pour des rotules lubrifiées avec la graisse code A est limitée à 121 °C.
Dans les deux cas, la surface sphérique de la bague extérieure ou intérieure doit être protégée avec un film lubrifiant sec selon la MIL-PRF-46010G ou un équivalent (protection anti-grippage).
Le trou de coulisse est traité soit sur la bague extérieure ou la bague intérieure.
Aeronavtika - Ležaj, krogelni, drsni, kovina na kovino, iz korozijsko odpornega jekla - Široki tip - Mere in obremenitve - Colske serije
General Information
Relations
Overview
EN 4265:2013 defines the characteristics, dimensions and load ratings for aerospace spherical plain bearings (metal-to-metal) made from corrosion resisting steel - passivated, wide series, inch series. Intended for use in fixed or moving aircraft structure parts and control mechanisms, the standard covers configuration, tolerances, materials, surface treatment, lubrication and marking for bearings used in the aerospace temperature band −54 °C to 150 °C.
Key search terms: EN 4265:2013, spherical plain bearings, corrosion resisting steel, aerospace bearings, inch series, dimensions and loads.
Key topics and requirements
- Scope & temperature: Bearings qualified for −54 °C to 150 °C service.
- Lubrication: Two grease codes:
- Code A: MIL‑PRF‑23827C (operating −73 °C to 121 °C) - application limited to ≤121 °C.
- Code B: MIL‑PRF‑81322G (operating −54 °C to 177 °C).
In both cases the spherical surface (outer or inner ring) must have a dry‑film lubricant per MIL‑PRF‑46010G (anti‑seize).
- Materials & hardness:
- Inner ring: steel per EN 2030, hardness 55–62 HRC.
- Outer ring: steel per EN 3161, hardness 28–38 HRC (before swaging).
- Dimensions, tolerances & units: Detailed dimensions, tolerances, surface roughness and mass are provided in the standard (values expressed in millimetres and inches). The diameter code corresponds to bore diameter in 1/16 inch.
- Loads & clearances: Permissible and ultimate static radial/axial loads, clearances (normal/reduced) and permissible surface pressures are specified (see tables in the standard). Definitions/testing reference EN 2337 and TR 4475.
- Configuration options: Grease‑hole and swaging groove codes (Figures) and designation format (example: EN4265BP16ER).
- Marking & technical spec: Marking per EN 2424; technical specifications aligned with EN 2337.
Practical applications
- Use for bearings in aircraft airframe structure, hinges, control linkages and other fixed or articulated joints where corrosion resisting, metal‑to‑metal spherical plain bearings are required.
- Important for part selection, procurement, qualification, manufacturing and maintenance of aerospace bearings to ensure interchangeability and flightworthiness.
Who uses this standard
- Aerospace designers and stress engineers
- Bearing manufacturers and suppliers
- Procurement and quality assurance teams (aerospace OEMs & MROs)
- Regulatory/standards bodies and test laboratories
Related standards
- EN 2337 (spherical plain bearings - technical specification)
- EN 2030, EN 3161 (material specifications)
- ISO 8075 (surface treatment)
- EN 2424 (marking)
- TR 4475, ISO 1132-1
- MIL‑PRF‑23827C, MIL‑PRF‑81322G, MIL‑PRF‑46010G (lubricants)
This summary helps engineers and procurement professionals quickly assess whether EN 4265:2013 applies to their aerospace bearing design, manufacture or maintenance needs.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aeronavtika - Ležaj, krogelni, drsni, kovina na kovino, iz korozijsko odpornega jekla - Široki tip - Mere in obremenitve - Colske serijeLuft- und Raumfahrt - Gelenklager, Metall auf Metall aus korrosionsbeständigem Stahl - Breite Reihe - Maße und Belastungen - Inch ReiheSérie aérospatiale - Rotules lisses, métal à métal en acier résistant à la corrosion - Série large - Dimensions et charges - Séries en inchesAerospace series - Bearing spherical plain, metal to metal in corrosion resisting steel - Wide series - Dimensions and loads - Inch series49.035Sestavni deli za letalsko in vesoljsko gradnjoComponents for aerospace constructionICS:Ta slovenski standard je istoveten z:EN 4265:2013SIST EN 4265:2014en01-februar-2014SIST EN 4265:2014SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4265
January 2013 ICS 49.035 English Version
Aerospace series - Bearing spherical plain, metal to metal in corrosion resisting steel - Wide series - Dimensions and loads - Inch series
Série aérospatiale - Rotules lisses, métal à métal en acier résistant à la corrosion - Série large - Dimensions et charges - Séries en inches
Luft- und Raumfahrt - Gelenklager, Metall auf Metall aus korrosionsbeständigem Stahl - Breite Reihe - Maße und Belastungen - Inch-Reihe This European Standard was approved by CEN on 10 March 2011.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4265:2013: ESIST EN 4265:2014
Aerospace series - Steel FE-PM3501 (X105CrMo17) - Hardened and tempered - Bars D ≤ 150 mm1) EN 2337, Aerospace series — Spherical plain bearings — Technical specification
EN 2424, Aerospace series — Marking of aerospace products EN 3161, Aerospace series — Steel FE-PM3801 (X5CrNiCu17-4) — Air melted — Solution treated and precipitation treated — Bar — a or D ≤ 200 mm — Rm ≥ 930 MPa ISO 1132-1, Rolling bearings — Tolerances — Part 1: Terms and definitions ISO 8075, Aerospace — Surface treatment of hardenable stainless steel parts TR 4475, Aerospace series — Bearings and mechanical transmissions for airframe applications — Vocabulary 1) MIL-PRF-23827C, Grease — Aircraft and instrument — Gear and actuator screw — NATO code number G-354 2) MIL-PRF-46010G, Lubricant — Solid film — Heat cured — Corrosion inhibiting 2
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Frequently Asked Questions
SIST EN 4265:2014 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Bearing spherical plain, metal to metal in corrosion resisting steel - Wide series - Dimensions and loads - Inch series". This standard covers: This European Standard specifies the characteristics of spherical plain bearings, metal to metal, in corrosion resisting steel, passivated, wide series, inch series for aerospace applications. They are intended for use in fixed or moving parts of the aircraft structure and their control mechanisms. They shall be used in the temperature range - 54 °C to 150 °C. As they are lubricated by means of the following greases: Code A: Grease as per MIL-PRF-23827C, operating temperature range -73 °C to 121 °C. Code B: Grease as per MIL-PRF-81322G, operating temperature range - 54 °C to 177 °C. The range of application for bearings lubricated with grease per code A is limited to 121 °C. In both cases the spherical surface of the outer or inner ring have to be provided with a dry-film lubricant as per MIL-PRF-46010G or equivalent (anti-seizing protection). The slide hole treatment either at the outer ring or inner ring.
This European Standard specifies the characteristics of spherical plain bearings, metal to metal, in corrosion resisting steel, passivated, wide series, inch series for aerospace applications. They are intended for use in fixed or moving parts of the aircraft structure and their control mechanisms. They shall be used in the temperature range - 54 °C to 150 °C. As they are lubricated by means of the following greases: Code A: Grease as per MIL-PRF-23827C, operating temperature range -73 °C to 121 °C. Code B: Grease as per MIL-PRF-81322G, operating temperature range - 54 °C to 177 °C. The range of application for bearings lubricated with grease per code A is limited to 121 °C. In both cases the spherical surface of the outer or inner ring have to be provided with a dry-film lubricant as per MIL-PRF-46010G or equivalent (anti-seizing protection). The slide hole treatment either at the outer ring or inner ring.
SIST EN 4265:2014 is classified under the following ICS (International Classification for Standards) categories: 49.035 - Components for aerospace construction. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 4265:2014 has the following relationships with other standards: It is inter standard links to oSIST prEN 4265:2024. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
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