EN 3285:1994
(Main)Aerospace series - Bearings, airframe rolling - Rigid single row ball bearings in steel, cadmium plated - Diameter series 0 and 2 - Normal clearance category - Dimensions and loads
Aerospace series - Bearings, airframe rolling - Rigid single row ball bearings in steel, cadmium plated - Diameter series 0 and 2 - Normal clearance category - Dimensions and loads
This standard specifies the characteristics of rigid single row ball bearings i in steel, cadmium plated, or diameter series 0 and 2 designed to withstand only slow rotations and oscillations under load. They are intended for use between fixed and moving parts of the aircraft structure and their control mechanisms. The airframe rolling bearings defined in this standard are used from -54°C to +150°C.
Luft- und Raumfahrt - Flugwerklager - Einreihige Rillenkugellager aus Stahl, verkadmet - Durchmesserreihen 0 und 2 - Normale Lagerluft - Maße und Belastungen
Diese Norm legt die Eigenschaften von einreihigen Rillenkugellagern aus Stahl, verkadmet, der Durchmesserreihen 0 und 2 fest, die so ausgelegt sind, dass sie unter Belastung nur langsamen Dreh- und Schwenkbewegungen standhalten. Sie sind zur Verwendung zwischen starren und beweglichen Flugwerkteilen und deren Steuerungseinrichtugen vorgesehen. Die in der vorliegenden Norm festgelegten Flugwerklager sind in dem Temperatur- bereich von -54°C bis +150°C anwendbar.
Série aérospatiale - Roulements pour structures d'aéronefs - Roulements en acier, cadmiés, rigides, à une rangée de billes - Série de diamètres 0 et 2 - Catégorie à jeux normaux - Dimensions et charges
La présente norme spécifie les caractéristiques des roulements en acier, cadmiés, rigides, à une rangée de billes, séries de diamètres 0 et 2 conçus pour supporter en charge uniquement des rotations lentes et des oscillations faibles. Ils sont destinés à être utilisés entre les éléments fixes et mobiles de la structure des aéronefs et de leurs mécanismes de commande. Les roulements de structure définis par la présente norme sont utilisables dans l'intervalle de température de -54°C à +150°C.
Aerospace series - Bearings, airframe rolling - Rigid single row ball bearings in steel, cadmium plated - Diameter series 0 and 2 - Normal clearance category - Dimensions and loads
General Information
- Status
- Published
- Publication Date
- 22-May-1994
- Withdrawal Date
- 29-Nov-1994
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 3 - Mechanical
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 21-Jan-2025
- Completion Date
- 11-Feb-2026
Relations
- Effective Date
- 28-Jan-2026
Overview
EN 3285:1994 is a vital CEN standard within the aerospace sector, focusing on the specification of rigid single row ball bearings. These high-precision components are manufactured in steel with cadmium plating, and are classified under diameter series 0 and 2 with a normal clearance category. The primary function of these airframe rolling bearings is to provide reliable support between fixed and moving parts within aircraft structures and their control mechanisms. Their design is optimized for slow rotational movements and oscillations under load, making them integral in ensuring safe and efficient aircraft operation across a wide temperature range from -54°C to +150°C.
Key Topics
- Bearing Construction: Rigid single row ball bearings in steel, cadmium plated for enhanced corrosion resistance and durability.
- Diameter Series: Classified into diameter series 0 and 2, addressing various aerospace application requirements.
- Normal Clearance: Bearings fall under the "normal" clearance category to balance performance and longevity.
- Temperature Range: Defined operating range spans from -54°C to +150°C, supporting diverse aerospace environments.
- Load Capacity: Specifications address both allowable dimensions and the mechanical loads these bearings can withstand during service.
Applications
EN 3285:1994 airframe bearings find application in several critical aerospace components and assemblies:
- Aircraft Structures: Installed between fixed and moving parts, ensuring smooth articulation and alignment.
- Control Mechanisms: Suitable for control surface actuators and linkages where precise, reliable movement is essential.
- Landing Gear Systems: Used in slow rotational or oscillatory joints subject to high stress but not high speed.
- Aerospace Assemblies: Applicable in both civil and military aircraft where robust and temperature-resistant bearings are required.
Adhering to this standard ensures:
- Enhanced safety and reliability of aerospace assemblies.
- Extended service life of aircraft components through use of correctly specified and tested bearings.
- Compliance with international aerospace quality and performance benchmarks.
Related Standards
For further alignment and compliance within the aerospace industry, consider these related standards:
- EN 3284: Aerospace series - Bearings, airframe rolling - Other series and clearance categories.
- EN 3907: Aerospace series - Bearings, airframe rolling - Technical requirements and quality assurance guidelines.
- ISO 281: Rolling bearings - Dynamic load ratings and rating life.
- EN 2267: Aerospace series - Electrical cables and wiring requirements connected to bearing systems.
These standards complement EN 3285:1994 by providing additional requirements and best practices for bearing selection, installation, maintenance, and quality assurance in aerospace applications.
EN 3285:1994 ensures that aerospace manufacturers, suppliers, and maintenance organizations can rely on consistent specifications for rigid single row ball bearings, enabling optimized design, improved performance, and enhanced safety in complex aerospace environments. For professionals in aerospace engineering, procurement, and maintenance, understanding and applying EN 3285:1994 is essential to achieving regulatory compliance and operational excellence.
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Frequently Asked Questions
EN 3285:1994 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Bearings, airframe rolling - Rigid single row ball bearings in steel, cadmium plated - Diameter series 0 and 2 - Normal clearance category - Dimensions and loads". This standard covers: This standard specifies the characteristics of rigid single row ball bearings i in steel, cadmium plated, or diameter series 0 and 2 designed to withstand only slow rotations and oscillations under load. They are intended for use between fixed and moving parts of the aircraft structure and their control mechanisms. The airframe rolling bearings defined in this standard are used from -54°C to +150°C.
This standard specifies the characteristics of rigid single row ball bearings i in steel, cadmium plated, or diameter series 0 and 2 designed to withstand only slow rotations and oscillations under load. They are intended for use between fixed and moving parts of the aircraft structure and their control mechanisms. The airframe rolling bearings defined in this standard are used from -54°C to +150°C.
EN 3285:1994 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.
EN 3285:1994 has the following relationships with other standards: It is inter standard links to EN 3280:2011. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 3285:1994 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.Aerospace series - Bearings, airframe rolling - Rigid single row ball bearings in steel, cadmium plated - Diameter series 0 and 2 - Normal clearance category - Dimensions and loadsLuft- und Raumfahrt - Flugwerklager - Einreihige Rillenkugellager aus Stahl, verkadmet - Durchmesserreihen 0 und 2 - Normale Lagerluft - Maße und BelastungenSérie aérospatiale - Roulements pour structures d'aéronefs - Roulements en acier, cadmiés, rigides, a une rangée de billes - Série de diametres 0
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