EN 3045:1993
(Main)Aerospace series - Bearings, airframe rolling - Rigid single row ball bearings in steel - Diameter series 0 and 2 - Reduced clearance category - Dimensions and loads
Aerospace series - Bearings, airframe rolling - Rigid single row ball bearings in steel - Diameter series 0 and 2 - Reduced clearance category - Dimensions and loads
This standard specifies the characteristics of rigid single row ball bearing 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, in particular the mounting of more than one bearing on the same shaft axis, which may require reduced clearances and runouts (axial and radial).
Luft- und Raumfahrt - Flugwerklager - Einreihige Rillenkugellager aus Stahl - Durchmesserreihen 0 und 2 - Reduzierte Lagerluft - Maße und Belastungen
Diese Norm legt die Eigenschaften 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, insbesondere bei Montage von mehr als einem Wälzlager auf der gleichen Wellenachse, die reduzierte Spiele (axiale und radiale Lagerluft, Plan- und Rundlauf) erfordern kann.
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 réduits - 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, et plus particulièrement dans le cas de montage sur une même ligne d'arbre, ce qui impose des jeux et battements reduits (axial et radial).
Aerospace series - Bearings, airframe rolling - Rigid single row ball bearings in steel - Diameter series 0 and 2 - Reduced clearance category - Dimensions and loads
General Information
- Status
- Published
- Publication Date
- 22-Nov-1993
- Withdrawal Date
- 30-May-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-2024
- Completion Date
- 21-Jan-2026
Relations
- Effective Date
- 28-Jan-2026
Overview
EN 3045:1993 is a European standard developed by CEN that defines the specifications for rigid single row ball bearings in steel, specifically for aerospace applications. The standard covers bearings in diameter series 0 and 2, designed with reduced clearance to accommodate precise requirements in aircraft structures. These bearings are intended to support slow rotational and oscillatory movements under load, ensuring reliability in critical airframe and control mechanism components. By standardizing dimensions, load capacities, and clearance categories, EN 3045:1993 promotes consistency, safety, and performance in aerospace rolling bearings.
Key Topics
- Bearing Type: Rigid single row ball bearings in steel
- Diameter Series: Series 0 and 2, covering smaller to medium-sized bearings used in aerospace
- Clearance Category: Reduced clearance to limit axial and radial runouts, essential for multiple bearings mounted on the same shaft axis
- Intended Motion: Suitable for slow rotations and oscillations, typical in airframe structural components
- Load Specifications: Defined dimensions and load ratings to ensure compatibility with aerospace design and safety requirements
- Application Focus: Bearings designed to fit between fixed and moving parts of aircraft, supporting control mechanisms and structural joints
Applications
The EN 3045:1993 standard bearings are critical in aerospace manufacturing and maintenance, offering precise mechanical performance where minimal clearance and reliable slow-motion operation are needed. Typical applications include:
- Aircraft Structural Assemblies: Bearings that link movable and fixed airframe parts, contributing to structural integrity and smooth mechanical function
- Flight Control Systems: Components requiring oscillatory bearing movements, such as flap actuators, control rods, and hinges
- Multiple Bearing Mounts: Situations requiring several bearings aligned on a single shaft axis, demanding minimal clearance to avoid operational interference
- Maintenance and Replacement: Ensuring consistent spare parts specifications for aerospace rolling bearings, enhancing serviceability and safety
- General Aerospace Engineering: Fits various aerospace mechanical assemblies adhering to rigorous industry standards
Related Standards
EN 3045:1993 complements a broader family of aerospace and bearing standards, including:
- ISO 492: Rolling bearings – Radial bearings – Tolerances, which guide precision fits and tolerances
- EN 2949: Aerospace series - Rolling bearings - Vocabulary, providing standardized terminology
- Relevant CEN Aerospace Series: Covering other bearing types, materials, and special applications tailored for aviation and space
- National Implementations: Various national standards bodies (e.g., SIST EN 3045 in Slovenia) adopt and implement EN 3045 for regional aerospace industries
Keywords: EN 3045:1993, aerospace bearings, rigid single row ball bearings, reduced clearance bearings, airframe rolling bearings, diameter series 0 and 2, slow rotation bearings, oscillation bearings, aircraft structure bearings, aerospace standards, CEN standards, aircraft control mechanisms bearings, rolling bearing dimensions and loads.
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Frequently Asked Questions
EN 3045:1993 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 - Reduced clearance category - Dimensions and loads". This standard covers: This standard specifies the characteristics of rigid single row ball bearing 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, in particular the mounting of more than one bearing on the same shaft axis, which may require reduced clearances and runouts (axial and radial).
This standard specifies the characteristics of rigid single row ball bearing 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, in particular the mounting of more than one bearing on the same shaft axis, which may require reduced clearances and runouts (axial and radial).
EN 3045:1993 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 3045:1993 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 3045:1993 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 - Reduced clearance category - Dimensions and loadsLuft- und Raumfahrt - Flugwerklager - Einreihige Rillenkugellager aus Stahl - Durchmesserreihen 0 und 2 - Reduzierte 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 - C
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