SIST EN 2588:2024
(Main)Aerospace series - Bearing, spherical plain in corrosion resisting steel with assembly slots - Dimensions and loads
Aerospace series - Bearing, spherical plain in corrosion resisting steel with assembly slots - Dimensions and loads
This document specifies the characteristics of spherical plain bearings in corrosion resisting steel, with assembly slots, metric series, with or without lubrication holes and groove, intended for use in fixed or moving parts of aircraft structure and control mechanisms, within the temperature range from −54 °C to 150 °C.
It also applies to the following temperature ranges when lubricated with the following greases (see EN 2337):
- ester type very high pressure grease (code letter A), operating range from −73 °C to 121 °C;
- synthetic hydrocarbon type very high pressure grease general purpose (code letter B), operating range from −54 °C to 177 °C.
Their field of application when lubricated with grease code letter A is limited to 121 °C.
Luft- und Raumfahrt - Gelenklager aus korrosionsbeständigem Stahl mit Einführnut - Maße und Belastungen
Dieses Dokument legt die Eigenschaften für Gelenklager aus korrosionsbeständigem Stahl mit Einführnut der metrischen Reihe mit oder ohne Schmierloch und Schmiernut fest, die für starre oder bewegte Flugwerkteile und deren Betätigungseinrichtungen bestimmt sind, innerhalb eines Temperaturbereichs von −54 °C bis 150 °C.
Es ist auch anwendbar für die folgenden Temperaturbereiche, wenn sie mit folgenden Fetten geschmiert sind (siehe EN 2337):
- Hochdruckfett auf Esterbasis (Kennbuchstabe A), Betriebstemperaturbereich von −73 °C bis 121 °C;
- Hochdruckfett auf der Basis von synthetischen Kohlenwasserstoffen zur allgemeinen Verwendung (Kennbuchstabe B), Betriebstemperaturbereich von −54 °C bis 177 °C.
Ihr Anwendungsbereich für Schmierung mit Fett A ist auf 121 °C eingeschränkt.
Série aérospatiale - Rotule lisses en acier résistant à la corrosion avec encoches d’assemblage - Dimensions et charges
Le présent document spécifie les caractéristiques des rotules lisses en acier résistant à la corrosion, avec des encoches d'assemblage, série métrique, avec ou sans trous et rainure de lubrification, destinées à être utilisées dans les éléments fixes ou mobiles de la structure des aéronefs et de leurs mécanismes de commande.
Elles peuvent être utilisées dans une plage de températures de −54 °C à 150 °C.
Cependant, comme elles sont lubrifiées avec les graisses suivantes (voir l’EN 2337) :
- graisse extrême pression, type ester (lettre code A), plage d'utilisation comprise entre −73 °C et 121 °C ou
- graisse extrême pression, type hydrocarbures synthétiques d’usage général (lettre code B), plage d'utilisation comprise entre −54 °C et 177 °C,
en cas de lubrification avec de la graisse code A, leur champ d'application est limité à 121 °C.
Aeronavtika - Ležaj, krogelni, drsni, iz korozijsko odpornega jekla z utorom - Mere in nosilnosti
Ta dokument določa značilnosti krogelnih drsnih ležajev iz korozijsko odpornega jekla z utorom, v metrskih merah, z mazalnimi odprtinami in utori ali brez njih, ki so namenjeni za uporabo v fiksnih ali premikajočih se delih ogrodja letala in nadzornih mehanizmih, v temperaturnem območju od −54 °C do 150 °C.
Uporablja se tudi za naslednja temperaturna območja pri podmazovanju z naslednjimi mastmi (glej standard EN 2337):
– mast pod zelo visokim tlakom, vrste ester (koda A), območje delovanja od –73 °C do 121 °C; ali
– mast pod zelo visokim tlakom, sintetični ogljikovodiki, splošni namen (koda B), območje delovanja od –54 °C do 177 °C.
Njihovo področje uporabe je pri podmazovanju z mastjo kode A omejeno na 121 °C.
General Information
Relations
Overview
EN 2588:2024 - "Aerospace series - Bearing, spherical plain in corrosion resisting steel with assembly slots - Dimensions and loads" (CEN) defines the dimensional, material and performance requirements for metric spherical plain bearings in corrosion‑resisting steel intended for aircraft structures and control mechanisms. Approved September 2024 and superseding EN 2588:2006, this standard covers bearings with or without lubrication holes and grooves, assembly slots, and application temperature ranges from −54 °C to 150 °C (extended ranges when specific greases are used).
Key topics and requirements
- Scope & configuration: Metric series spherical plain bearings with assembly slots; options for lubrication holes and groove (code letters E, F, G). Dimensions, masses and configuration are given in Figure 1/2 and Table 1/2.
- Temperature & lubrication: Base operating range −54 °C to 150 °C. When lubricated:
- Grease A (ester VHLP): −73 °C to 121 °C - application limited to 121 °C.
- Grease B (synthetic hydrocarbon VHLP): −54 °C to 177 °C.
- Dimensions, tolerances & loads: Detailed dimensional tolerances, internal clearances and permissible static loads are specified (see Table 1–3). Slot orientation and loading notes are provided for proper application.
- Surface finish & treatment: Surface roughness limits for spherical surfaces; optional dry‑film anti‑scoring lubricant per EN 2491; passivation per ISO 8075 (code T).
- Materials & hardness: Inner ring per EN 2030, hardened to 55–62 HRC; outer ring per EN 2030 with 58 HRC minimum.
- Designation & marking: Marking according to EN 2424 (style A). Technical specification per EN 2337.
- Normative references & terminology: Uses ISO 1132‑1 for terms and rolling bearing tolerances.
Applications
- Aerospace structural joints, control linkages and moving interfaces where corrosion resistance, precise dimensions and defined load capacity are critical.
- Suitable for bearings used in fixed or moving parts of aircraft structures, flight controls, landing gear linkages and actuator pivots where assembly slots and lubrication options are needed.
Who should use this standard
- Aerospace component manufacturers and bearing producers (design, QA).
- Aircraft structural and mechanical designers specifying bearings for assemblies.
- Procurement teams and suppliers verifying conformity and marking.
- Maintenance, repair and overhaul (MRO) organisations and test laboratories validating material, hardness and load ratings.
Related standards
- EN 2030 (material/hardening of stainless steel rings)
- EN 2337 (spherical plain bearings technical specification)
- EN 2424 (marking of aerospace products)
- EN 2491 (dry‑film lubricants)
- ISO 1132‑1 (tolerances, terms)
- ISO 8075 (surface treatment of stainless steel)
Keywords: EN 2588:2024, spherical plain bearing, corrosion resisting steel, aerospace bearings, dimensions and loads, lubrication holes, assembly slots, temperature range, grease code A, grease code B.
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2024
Aeronavtika - Ležaj, krogelni, drsni, iz korozijsko odpornega jekla z utorom - Mere
in nosilnosti
Aerospace series - Bearing, spherical plain in corrosion resisting steel with assembly
slots - Dimensions and loads
Luft- und Raumfahrt - Gelenklager aus korrosionsbeständigem Stahl mit Einführnut -
Maße und Belastungen
Série aérospatiale - Rotule lisses en acier résistant à la corrosion avec encoches
d’assemblage - Dimensions et charges
Ta slovenski standard je istoveten z: EN 2588:2024
ICS:
49.035 Sestavni deli za letalsko in Components for aerospace
vesoljsko gradnjo construction
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 2588
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2024
EUROPÄISCHE NORM
ICS 49.035 Supersedes EN 2588:2006
English Version
Aerospace series - Bearing, spherical plain in corrosion
resisting steel with assembly slots - Dimensions and loads
Série aérospatiale - Rotule lisse en acier résistant à la Luft- und Raumfahrt - Gelenklager aus
corrosion avec encoches d'assemblage - Dimensions et korrosionsbeständigem Stahl mit Einführnut - Maße
charges und Belastungen
This European Standard was approved by CEN on 9 September 2024.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 2588:2024 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Symbols and abbreviations . 4
5 Required characteristics . 5
5.1 Configuration, dimensions and masses . 5
5.2 Surface roughness . 5
5.3 Clearances and loads . 8
5.4 Materials . 9
5.5 Surface treatment . 9
6 Designation . 10
7 Marking . 10
8 Technical specification . 10
European foreword
This document (EN 2588:2024) 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 Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, 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 endorsement, at the latest by April 2025, and conflicting national standards shall be
withdrawn at the latest by April 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 2588:2006.
This document includes the following significant technical changes with respect to EN 2588:2006:
— normative references updated;
— subclause 5.4 “Materials”: hardness requirement for the outer ring corrected.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, N
...
Frequently Asked Questions
SIST EN 2588:2024 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Bearing, spherical plain in corrosion resisting steel with assembly slots - Dimensions and loads". This standard covers: This document specifies the characteristics of spherical plain bearings in corrosion resisting steel, with assembly slots, metric series, with or without lubrication holes and groove, intended for use in fixed or moving parts of aircraft structure and control mechanisms, within the temperature range from −54 °C to 150 °C. It also applies to the following temperature ranges when lubricated with the following greases (see EN 2337): - ester type very high pressure grease (code letter A), operating range from −73 °C to 121 °C; - synthetic hydrocarbon type very high pressure grease general purpose (code letter B), operating range from −54 °C to 177 °C. Their field of application when lubricated with grease code letter A is limited to 121 °C.
This document specifies the characteristics of spherical plain bearings in corrosion resisting steel, with assembly slots, metric series, with or without lubrication holes and groove, intended for use in fixed or moving parts of aircraft structure and control mechanisms, within the temperature range from −54 °C to 150 °C. It also applies to the following temperature ranges when lubricated with the following greases (see EN 2337): - ester type very high pressure grease (code letter A), operating range from −73 °C to 121 °C; - synthetic hydrocarbon type very high pressure grease general purpose (code letter B), operating range from −54 °C to 177 °C. Their field of application when lubricated with grease code letter A is limited to 121 °C.
SIST EN 2588:2024 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 2588:2024 has the following relationships with other standards: It is inter standard links to SIST EN 2588:2009. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase SIST EN 2588:2024 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
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