EN 3284:1994
(Main)Aerospace series - Bearings, airframe rolling - Rigid single row ball bearings in steel - Diameter series 0 and 2 - Normal clearance category - Dimensions and loads
Aerospace series - Bearings, airframe rolling - Rigid single row ball bearings in steel - Diameter series 0 and 2 - Normal clearance category - Dimensions and loads
This standard specifies the characteristics of rigid single row ball bearings in steel of 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 - Durchmesserreihen 0 und 2 - Normale Lagerluft - Maße und Belastungen
Diese Norm legt die Eingenschaften von einreihigen Rillenkugellagern aus Stahl 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 Steuerungseinrichtungen 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, rigides, à une rangée de billes - Séries de diamètres 0 et 2 - Catégorie à jeux normaux - Dimensions et charges
La présente norme spécifie les caractéristiques des roulements en acier, 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 roulement de structure défins 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 - Diameter series 0 and 2 - Normal clearance category - Dimensions and loads
General Information
- Status
- Published
- Publication Date
- 09-Jun-1994
- Withdrawal Date
- 30-Dec-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 3284:1994 is a European standard published by CEN that defines the specifications for rigid single row ball bearings in steel, specifically for aerospace applications. It focuses on bearings within diameter series 0 and 2, categorized under normal clearance. These bearings are engineered to withstand slow rotations and oscillations under load, making them ideal for use in aircraft airframe rolling mechanisms and control components. The standard ensures these components operate reliably across a broad temperature range from -54°C to +150°C.
Key Topics
- Bearing Type: Rigid single row ball bearings made of steel
- Diameter Series: Series 0 and Series 2 bearings covered
- Clearance Category: Normal clearance classification
- Load and Dimension Specifications: Exact parameters for dimensions and load capacities
- Operational Conditions: Suitable for slow rotational or oscillatory motion under load
- Temperature Range: Performance guaranteed between -54°C and +150°C
- Applications in Aerospace: Designed specifically for airframe rolling components, including fixed and moving parts of aircraft structure and control systems
Applications
EN 3284:1994 bearings are predominantly applied in aerospace industry components where precise, robust, and durable bearings are crucial. Typical applications include:
- Aircraft landing gear mechanisms requiring reliable slow movement
- Flight control linkages where oscillation and slow rotation bearings are essential
- Mechanical joints in airframe structures subject to oscillating loads
- Bearings between fixed and moving aircraft structural parts where operational reliability at extreme temperatures is mandatory
These bearings contribute to enhanced safety, mechanical performance, and longevity of aerospace components exposed to varying environmental conditions.
Related Standards
This standard relates closely to other aerospace and bearing standards focused on quality, sizing, and performance, including but not limited to:
- Other EN aerospace series standards governing bearings for different load and motion types
- International standards like ISO bearing standards which specify bearing design and tolerances
- Standards covering materials and heat treatment for aerospace-grade steel components
- Aerospace control and structural component standards that specify integration of rolling bearings
Compliance with EN 3284 ensures manufacturers and maintenance providers meet rigorous aerospace quality and safety requirements for rolling bearing components.
Keywords: aerospace bearings, rigid single row ball bearings, steel bearings, airframe rolling, diameter series 0, diameter series 2, normal clearance bearings, slow rotation bearings, oscillation bearings, aircraft structure bearings, aerospace standard EN 3284, temperature resistant bearings, aircraft control mechanisms.
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Frequently Asked Questions
EN 3284:1994 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 - 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 in steel of 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 in steel of 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 3284:1994 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 3284:1994 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 3284:1994 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 - Diameter series 0 and 2 - Normal clearance category - Dimensions and loadsLuft- und Raumfahrt - Flugwerklager - Einreihige Rillenkugellager aus Stahl - Durchmesserreihen 0 und 2 - Normale Lagerluft - Maße und BelastungenSérie aérospatiale - Roulements pour structures d'aéronefs - Roulements en acier, rigides, a une rangée de billes - Séries de diametres 0 et 2 - Cat
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