SIST EN 4539-003:2011
(Main)Aerospace series - Bearings, spherical plain, in corrosion resisting steel with self-lubricating liner elevated load under low oscillations - Wide series - Dimensions and loads - Part 003: Inch series with low friction coefficient
Aerospace series - Bearings, spherical plain, in corrosion resisting steel with self-lubricating liner elevated load under low oscillations - Wide series - Dimensions and loads - Part 003: Inch series with low friction coefficient
This standard specifies the characteristics of bearings, spherical plain in corrosion resisting steel with self lubricating liner, elevated load under low oscillations, with low friction coefficient, wide series, inch series.
They shall be used in the temperature range - 54 °C to 120 °C.
Luft- und Raumfahrt - Gelenklager, aus korrosionsbeständigem Stahl mit selbstschmierender Beschichtung Hohe Belastung, gering Oszillierend - Breite Reihe - Maße und Belastungen - Teil 003: Inch Reihe mit niedrigen Reibungskoeffizienten
Diese Norm legt die Merkmale von Gelenklagern aus korrosionsbeständigem Stahl mit selbstschmierender
Beschichtung für hohe Belastung, gering oszillierend, mit niedrigem Reibungsbeiwert, breite Reihe, Inch-
Reihe fest.
Diese sind im Temperaturbereich −54 °C bis 120 °C zu verwenden.
Série Aérospatiale - Rotules, en acier résistant à la corrosion à garniture autolubrifiante à charge élevée sous faibles oscillations - Série large - Dimensions et charges - Partie 003 : Série en inches avec coefficient bas de friction
Aeronavtika - Kroglasti drsni ležaji iz korozijsko odpornega jekla s samomazalno oblogo in z zvišano obremenitvijo pod nizkimi nihanji - Široki tip - Mere in nosilnosti - 003. del: Colski tip z nizkim koeficientom trenja
Ta standard določa značilnosti kroglastih drsnih ležajev iz korozijsko odpornega jekla s samomazalno oblogo in z zvišano obremenitvijo pod nizkimi nihanji z nizkim koeficientom trenja, široke serije, colskega tipa. Uporabljali se bodo v temperaturnem razponu -54 °C do 120 °C.
General Information
- Status
- Published
- Publication Date
- 12-Apr-2011
- Technical Committee
- I13 - Imaginarni 13
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 31-Mar-2011
- Due Date
- 05-Jun-2011
- Completion Date
- 13-Apr-2011
Overview
The SIST EN 4539-003:2011 standard, published by the European Committee for Standardization (CEN), defines the specifications for aerospace spherical plain bearings made from corrosion-resistant steel with a self-lubricating liner. These bearings are designed for elevated load conditions under low oscillations and feature a low friction coefficient. This wide series, inch-based standard specifies dimensions, tolerances, mechanical loads, and surface treatments, targeting high-performance aerospace applications in demanding environments with temperatures ranging from -54 °C to 120 °C.
Key Topics
Spherical Plain Bearings
Bearings described in this standard utilize a corrosion-resistant steel construction combined with a self-lubricating liner, allowing for reduced maintenance and enhanced operational reliability.Material Specifications
- Inner ring: Steel conforming to EN 2030, with a hardness range of 55 to 62 HRC.
- Outer ring: Steel according to EN 3161, hardness between 28 to 37 HRC before swaging.
- Liner: Self-lubricating, low-friction, wear-resistant material consistent with EN 4540 requirements.
Dimensional Series and Tolerances
The standard covers inch series wide types with precise dimensional control, including diameter codes, tolerances for bore and outside diameters, and surface roughness specifications to ensure optimal bearing performance.Surface Treatments
Bearing components receive specific treatments for durability and corrosion resistance:- Chrome plating on the inner ring’s spherical diameter per AMS-QQ-C-320
- Cadmium plating on the outer race following EN 2133, including chromating options on certain surfaces
- Options with or without swaging grooves designated by codes "R" or "S"
Load Capacities and Friction Coefficients
The bearings are rated for static and dynamic loads, emphasizing elevated load capacity under low oscillations.- Static radial and axial limits, dynamic radial loads (up to 250,000 cycles) defined per diameter class.
- A maximum friction coefficient of 0.18 within the operational temperature range of -54 °C to 120 °C, ensuring low friction during oscillating movements.
Designation and Marking
The standard provides a specific format for bearing identification, including diameter codes, surface technology, and surface treatment codes for traceability and uniformity. Marking complies with EN 2424:2008 style A.
Applications
This standard is essential for aerospace industry professionals, engineers, and manufacturers involved in the design, production, and maintenance of aircraft components requiring high-reliability spherical plain bearings. Typical applications include:
- Aircraft landing gear
- Aero-engine components
- Flight control systems
- Space launch mechanisms
- Other aerospace mechanical transmissions where corrosion resistance, low friction, and elevated load handling under low oscillation conditions are critical
Using bearings conforming to SIST EN 4539-003:2011 guarantees compatibility with aerospace safety and performance requirements while minimizing maintenance thanks to the self-lubricating liner.
Related Standards
Readers and users of SIST EN 4539-003:2011 should also consider these related standards for comprehensive compliance:
- EN 4540: Technical specifications for spherical plain bearings in corrosion-resistant steel with self-lubricating liner under elevated load and low oscillations.
- EN 2030: Specifications for hardened and tempered steel bars used for aerospace components.
- EN 2133: Cadmium plating requirements for steels and alloys.
- EN 2424: Standard for marking aerospace products for traceability.
- AMS-QQ-C-320: Aerospace specifications for chromium plating on bearing surfaces.
- ISO 1132-1: Rolling bearings terminology and tolerances for operational clarity.
Compliance with SIST EN 4539-003:2011 and its associated standards ensures quality, safety, and interoperability in aerospace bearing applications, promoting reliability in critical flight systems.
Keywords: SIST EN 4539-003:2011, aerospace bearings, spherical plain bearings, corrosion resistant steel, self-lubricating liner, low friction coefficient, elevated load, low oscillations, inch series, aerospace standards, bearing dimensions, surface treatment, aerospace components.
Frequently Asked Questions
SIST EN 4539-003:2011 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Bearings, spherical plain, in corrosion resisting steel with self-lubricating liner elevated load under low oscillations - Wide series - Dimensions and loads - Part 003: Inch series with low friction coefficient". This standard covers: This standard specifies the characteristics of bearings, spherical plain in corrosion resisting steel with self lubricating liner, elevated load under low oscillations, with low friction coefficient, wide series, inch series. They shall be used in the temperature range - 54 °C to 120 °C.
This standard specifies the characteristics of bearings, spherical plain in corrosion resisting steel with self lubricating liner, elevated load under low oscillations, with low friction coefficient, wide series, inch series. They shall be used in the temperature range - 54 °C to 120 °C.
SIST EN 4539-003:2011 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 4539-003:2011 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aeronavtika - Kroglasti drsni ležaji iz korozijsko odpornega jekla s samomazalno oblogo in z zvišano obremenitvijo pod nizkimi nihanji - Široki tip - Mere in nosilnosti - 003. del: Colski tip z nizkim koeficientom trenjaLuft- und Raumfahrt - Gelenklager, aus korrosionsbeständigem Stahl mit selbstschmierender Beschichtung Hohe Belastung, gering Oszillierend - Breite Reihe - Maße und Belastungen - Teil 003: Inch Reihe mit niedrigen ReibungskoeffizientenSérie Aérospatiale - Rotules, en acier résistant à la corrosion à garniture autolubrifiante à charge élevée sous faibles oscillations - Série large - Dimensions et charges - Partie 003 : Série en inches avec coefficient bas de frictionAerospace series - Bearings, spherical plain, in corrosion resisting steel with self-lubricating liner elevated load under low oscillations - Wide series - Dimensions and loads - Part 003: Inch series with low friction coefficient49.035Sestavni deli za letalsko in vesoljsko gradnjoComponents for aerospace constructionICS:Ta slovenski standard je istoveten z:EN 4539-003:2010SIST EN 4539-003:2011en,de01-maj-2011SIST EN 4539-003:2011SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4539-003
November 2010 ICS 49.035 English Version
Aerospace series - Bearings, spherical plain, in corrosion resisting steel with self-lubricating liner elevated load under low oscillations - Wide series - Dimensions and loads - Part 003: Inch series with low friction coefficient
Série Aérospatiale - Rotules, en acier résistant à la corrosion à garniture autolubrifiante à charge élevée sous faibles oscillations - Série large - Dimensions et charges - Partie 003 : Série en inches avec coefficient bas de friction Luft- und Raumfahrt - Gelenklager, aus korrosionsbeständigem Stahl mit selbstschmierender Beschichtung Hohe Belastung, gering Oszillierend - Breite Reihe - Maße und Belastungen - Teil 003: Inch Reihe mit niedrigen Reibungskoeffizienten This European Standard was approved by CEN on 7 August 2010.
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 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 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4539-003:2010: ESIST EN 4539-003:2011
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