EN 4614:2021

Aerospace series - Spherical plain bearing in corrosion resisting steel with self-lubricating liner, wide series - Dimensions and loads - Inch series

This document specifies the characteristics of a bearing, spherical plain in corrosion resisting steel with self-lubricating liner, wide series for aerospace applications.
These bearings are not intended for use of moving parts especially for control mechanism and operating system. They shall be used in the temperature range -55 °C to 163 °C.

Luft- und Raumfahrt - Gelenklager aus korrosionsbeständigem Stahl mit selbstschmierender Beschichtung, breite Reihe - Maße und Belastungen - Inch-Reihe

Dieses Dokument legt die Eigenschaften von Gelenklagern aus korrosionsbeständigem Stahl mit selbstschmierender Beschichtung, breite Reihe für die Anwendung in der Luft- und Raumfahrt fest.
Diese Gelenklager sind nicht für den Einsatz in beweglichen Teilen, vor allem in Steuerungsmechanismen und Betätigungsvorrichtungen bestimmt. Sie sind im Temperaturbereich von −55 °C bis 163 °C zu verwenden.

Série aérospatiale - Rotule lisse, en acier résistant à la corrosion, à garniture autolubrifiante, série large - Dimensions et charges - Série en inches

Le présent document spécifie les caractéristiques d’une rotule lisse en acier résistant à la corrosion, à garniture autolubrifiante, série large, pour les applications aérospatiales.
Ces rotules ne sont pas destinées à être utilisées dans des parties mobiles, particulièrement pour les mécanismes de commande et les systèmes d’actionnement. Les températures d’utilisation doivent être comprises entre -55 °C et 163 °C.

Aeronavtika - Kroglasti drsni ležaj iz korozijsko odpornega jekla s samomazalno oblogo, široki tip - Mere in nosilnosti - Palčne mere

General Information

• Status: Published
• Publication Date: 26-Oct-2021
• Withdrawal Date: 29-Apr-2022
• ICS: 49.035 - Components for aerospace construction
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 3/S 1 - Parts of Mechanical Systems
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 27-Oct-2021
• Completion Date: 27-Oct-2021
• Ref Project: SIST EN 4614:2021 - Aerospace series - Spherical plain bearing in corrosion resisting steel with self-lubricating liner, wide series - Dimensions and loads - Inch series

Relations

• Replaces: EN 4614:2009 - Aerospace series - Spherical plain bearings in corrosion resisting steel with self-lubricating liner, wide series - Dimensions and loads - Inch series
• Effective Date: 08-Nov-2017

Overview

EN 4614:2021 specifies the characteristics, dimensions and load ratings for the aerospace wide-series spherical plain bearing in corrosion resisting steel with self-lubricating liner (inch series). It applies to bearings intended for aerospace structures (not for primary moving control mechanisms or operating-system actuators) and defines mechanical, material and surface-treatment requirements for reliable performance in the temperature range −55 °C to 163 °C.

Key topics and technical requirements

• Scope and configuration: Detailed drawings, dimensional tables and tolerances are given (dimensions shown in millimetres and inches). Two configuration codes are defined: Code R (with swaging grooves) and Code S (without swaging grooves).
• Materials and hardness:
  • Inner ring: steel per EN 2030, hardness 55–62 HRC.
  • Outer ring: steel per EN 3161, hardness 28–38 HRC (before swaging).
  • Liner: self-lubricating liner per EN 2755.
• Surface treatment:
  • Inner ring treatment per ISO 8075.
  • Outer ring cadmium plating 5–8 µm (per EN 2133) followed by chromating (scope and extent depend on swaging groove code).
• Loads and torques: The standard provides permissable static/ultimate loads, dynamic radial loads and starting torque values by diameter code; permissible surface pressures and test/definition references are specified (see TR 4475/EN 2755).
• Marking and designation: Marking convention per EN 2424; designation supports technology codes for liner bonding or molding (A–D) and extended-performance options.
• Quality and procurement: Manufacturers must operate an approved aerospace production organisation and maintain a quality system (e.g., EN 9100 or equivalent). Qualification and technical specification reference EN 2755 and EN 9133 procedures where applicable.

Applications and practical value

• Use this standard when selecting, specifying, manufacturing, procuring or inspecting spherical plain bearings for aerospace airframe components where corrosion resistance and low-maintenance (self-lubricating liner) performance is required.
• Typical users: design and stress engineers, procurement specialists, quality managers, test laboratories, bearing manufacturers and OEM suppliers in the aerospace supply chain.
• Practical benefits: consistent interchangeability, predictable load capacity and torque behavior, defined surface and material treatments for corrosion resistance and longevity in aerospace environments.

Related standards

• EN 2755 - bearing technical specification and tests (liner performance, starting torque)
• EN 2030, EN 3161 - material specifications
• EN 2133 - cadmium plating
• ISO 8075 - surface treatment of stainless parts
• EN 2424, EN 9100, EN 9133 - marking and quality/qualification requirements

Keywords: EN 4614:2021, spherical plain bearing, corrosion resisting steel, self-lubricating liner, aerospace bearings, dimensions and loads, inch series.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2021
Nadomešča:
SIST EN 4614:2009
Aeronavtika - Kroglasti drsni ležaj iz korozijsko odpornega jekla s samomazalno
oblogo, široki tip - Mere in nosilnosti - Palčne mere
Aerospace series - Spherical plain bearing in corrosion resisting steel with self-
lubricating liner, wide series - Dimensions and loads - Inch series
Luft- und Raumfahrt - Gelenklager aus korrosionsbeständigem Stahl mit
selbstschmierender Beschichtung, breite Reihe - Maße und Belastungen - Inch Reihe
Série aérospatiale - Rotules lisses résistant à la corrosion à garniture autolubrifiante,
série large - Dimensions et charges - Séries en inches
Ta slovenski standard je istoveten z: EN 4614:2021
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 4614
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2021
EUROPÄISCHE NORM
ICS 49.035 Supersedes EN 4614:2009
English Version
Aerospace series - Spherical plain bearing in corrosion
resisting steel with self-lubricating liner, wide series -
Dimensions and loads - Inch series
Série aérospatiale - Rotule lisse, en acier résistant à la Luft- und Raumfahrt - Gelenklager aus
corrosion, à garniture autolubrifiante, série large - korrosionsbeständigem Stahl mit selbstschmierender
Dimensions et charges - Série en inches Beschichtung, breite Reihe - Maße und Belastungen -
Inch Reihe
This European Standard was approved by CEN on 12 July 2020.

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, Turkey 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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4614:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms, definitions and symbols . 4
4 Requirements . 5
4.1 Configuration, dimensions, tolerances and mass. 5
4.2 Surface roughness . 5
4.3 Material . 5
4.4 Surface treatment . 5
4.5 Loads and starting torque values . 5
5 Designation . 12
6 Marking . 12
7 Technical specification . 12
8 Quality management systems . 13
Bibliography . 14

European foreword
This document (EN 4614:2021) 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 Standard 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 2022, and conflicting national standards shall be
withdrawn at the latest by April 2022.
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 4614:2009.
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, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
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.
1 Scope
This document specifies the characteristics of a bearing, spherical plain in corrosion resisting steel with
self-lubricating liner, wide series for aerospace applications.
These bearings are not intended for use of moving parts especially for control mechanism and
operating system. They shall be used in the temperature range −55 °C to 163 °C.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 2030, Aerospace series — Steel X105CrMo17 (1.3544) — Hardened and tempered — Bars —
De ≤ 150 mm
EN 2133, Aerospace series — Cadmium plating of steels with specified tensile strength ≤ 1 450 MPa,
copper, copper alloys and nickel alloys
EN 2424, Aerospace series — Marking of aerospace products
EN 2755, Aerospace series — Bearing, spherical plain in corrosion resisting steel with self-lubricating
liner — Elevated load at ambient temperature — Technical specification
EN 3161, Aerospace series — Steel FE-PM3801 (X5CrNiCu17-4) — Air melted, solution treated and
precipitation treated, bar a or D ≤ 200 mm — R ≥ 930 MPa
m
ISO 1132-1, Rolling bearings — Tolerances — Part 1: Terms and definitions
ISO 8075, Aerospace — Surface treatment of hardenable stainless steel parts
TR 4475, Bearings and mechanical transmissions for airframe applications — Vocabulary
3 Terms, definitions and symbols
For the purposes of this document, the terms and definitions given in TR 4475 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• ISO Online browsing platform: available at https://www.iso.org/obp
• IEC Electropedia: available at https://www.electropedia.org/
Symbols of limit deviations are in accordance with definitions of ISO 1132-1.
α = maximum angle of tilt of the inner ring with respect to the outer ring, with the spherical
raceway of the outer ring being completely in contact with the inner ri
...