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, a une rangée de billes - Série de diametres 0 et 2 - Catégorie a 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
31-Dec-2000
ICS
49.035 - Components for aerospace construction
Technical Committee
SS SPL - Technical Board for the general field
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Jan-2001
Due Date
01-Jan-2001
Completion Date
01-Jan-2001
Ref Project
EN 3285:1994 - 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

Overview

SIST EN 3285:2001 is a European aerospace standard that defines the specifications for rigid single row ball bearings used in airframe rolling applications. These bearings are manufactured from steel and cadmium plated to ensure durability and corrosion resistance. The standard covers bearings in diameter series 0 and 2 with a normal clearance category, detailing both dimensions and load capacities. Designed for use in aircraft structures and control mechanisms, these bearings are optimized for slow rotations and oscillations under load, operating effectively across a temperature range from -54°C to +150°C.

Key Topics

  • Bearing Type and Material: Rigid single row ball bearings made from steel and finished with a cadmium plating to enhance corrosion resistance in aerospace environments.
  • Diameter Series: Specifies diameter series 0 and 2, focusing on smaller-sized bearings typical for critical aerospace applications.
  • Clearance Category: Normal clearance is defined to ensure optimal performance under operating conditions involving slow rotation and oscillation.
  • Dimensions and Loads: Precise dimensional parameters and load ratings are established, supporting consistent quality and interchangeability.
  • Operating Conditions: Bearings are suitable for use between fixed and moving parts in aircraft, capable of functioning within a wide temperature range (-54°C to +150°C) relevant for aerospace environments.
  • Application Scope: Intended specifically for airframe rolling elements subjected to slow motion and oscillatory loads rather than continuous high-speed rotation.

Applications

SIST EN 3285:2001 bearings are integral components for aerospace engineering, particularly in:

  • Aircraft Structural Assemblies: Facilitating relative movement between fixed and moving airframe parts such as wing flaps, landing gear, and control surfaces.
  • Control Mechanisms: Supporting components where precise and reliable oscillatory motion is essential for flight control systems.
  • Environmental Resilience: Their cadmium-plated surface and operating temperature range make these bearings suitable for harsh aerospace conditions including extreme cold and moderate heat environments.
  • Maintenance and Interchangeability: Standardized dimensions and load ratings ensure easy replacement and maintenance within aircraft systems, improving operational reliability and lifespan.

Related Standards

  • EN 1337 Series – Structural steel bearing standards which may complement aerospace bearing requirements for supporting frameworks.
  • ISO 15243 – Rolling bearings failure modes and effects, providing quality assurance guidelines relevant for aerospace bearings.
  • EN 3651 – Aerospace series bearings general conditions and requirements that frame broader parameters for aerospace component standardization.
  • MIL-STD-810 – Environmental engineering considerations and laboratory tests which define environmental test methods that aerospace bearings must withstand.

By adhering to SIST EN 3285:2001, aerospace manufacturers and maintenance teams can ensure that the rolling bearings used within their aircraft are optimized for reliability, dimensional accuracy, and suitable for harsh operational conditions, improving overall safety and performance in aviation systems.

Frequently Asked Questions

SIST EN 3285:2001 is a standard published by the Slovenian Institute for Standardization (SIST). 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.

SIST EN 3285:2001 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.

You can purchase SIST EN 3285:2001 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.

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
...

Questions, Comments and Discussion

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SIST EN 3285:2001は、航空宇宙分野における鉄製の剛性単列ボールベアリングに関する標準であり、その特徴や寸法、荷重に関する詳細を明確に定義しています。この標準は、特に直径シリーズ0および2のボールベアリングに焦点を当てており、徐々に回転する動きや荷重下での振動に耐えることができる設計となっています。 SIST EN 3285:2001の強みは、耐摩耗性に加え、様々な動的および静的条件下での安定した性能を保証する点です。これにより、航空機の構造要素や制御機構の固定部品と可動部品との間での使用が可能となり、航空機の安全性と信頼性が向上します。また、温度範囲が-54°Cから+150°Cまで対応しているため、極端な環境条件下でも安定した性能を発揮します。 さらに、この標準は、航空機の設計者やエンジニアにとって非常に重要であり、適切なベアリングを選択するための貴重な情報源となります。SIST EN 3285:2001に基づく設計は、航空宇宙業界全体でのベアリングの標準化を進める上でも大きな役割を果たしています。このように、標準の枠組みは、航空機の安全性と性能を確保するための基盤を提供しており、業界内での全体的な信頼性の向上に寄与しています。

SIST EN 3285:2001 표준은 항공기 구조물과 그 제어 메커니즘 사이에서 사용되는 강철로 제작된 단일 열의 고정 볼 베어링에 대한 특성을 구체적으로 정의합니다. 이 표준의 주요 목적은 직경 시리즈 0 및 2에 해당하는 강철로 플레이트 반죽 처리된 볼 베어링이 슬로우 회전 및 하중 하에서의 진동을 견딜 수 있도록 설계되었다는 점입니다. 이 표준의 강점 중 하나는 명확한 치수와 하중 사양을 제공하여 항공사 및 제조업체가 필요한 구성 요소를 정확하게 선택할 수 있는 지침을 제공한다는 것입니다. 특히, SIST EN 3285:2001은 비행 조건에서의 성능을 보장하기 위한 세부적인 온도 범위를 설정하여 -54°C에서 +150°C 사이에서 안정적으로 작동하도록 디자인되었습니다. 이는 항공기 운영에서 높은 신뢰성을 요구하는 부품에 적합합니다. SIST EN 3285:2001은 항공기 구조물의 고정 및 이동 부품 간의 적절한 작동을 보장하기 위한 필수 표준으로, 항공사와 제조업체에서의 적용 가능성을 높이고 있습니다. 그 결과, 이 표준은 항공 업계의 품질 기준을 유지하는 데 기여하고 있으며, 제품의 안전성과 성능 향상에 중대한 영향을 미치고 있습니다.

La norme SIST EN 3285:2001 établit des spécifications claires et précises concernant les roulements rigides à une rangée à billes en acier, plaqués au cadmium, de séries de diamètres 0 et 2. Elle est particulièrement pertinente pour l'industrie aéronautique, car elle définit les caractéristiques essentielles requises pour ces composants, qui doivent résister à des rotations lentes et à des oscillations sous charge. Les points forts de cette norme incluent sa capacité à garantir la fiabilité et la sécurité des roulements utilisés dans les structures aériennes et leurs mécanismes de contrôle. En précisant des catégories de jeu normal, elle permet une meilleure compatibilité et interchangeabilité des roulements, ce qui est crucial pour la maintenance économique et efficace des aéronefs. Sa pertinence est accentuée par les plages de température dans lesquelles ces roulements peuvent fonctionner, c'est-à-dire de -54°C à +150°C, offrant ainsi une large gamme d'applications dans différentes conditions environnementales. La norme SIST EN 3285:2001 contribue donc à renforcer la sécurité des aéronefs en s'assurant que les composants critiques respectent des critères de performance stricts.

The SIST EN 3285:2001 standard delineates the specifications for rigid single row ball bearings used in the aerospace sector, particularly those constructed from steel and cadmium plated. This standard is critical for ensuring that these components can effectively support the intricate mechanisms within an aircraft's structure, facilitating the necessary slow rotations and oscillations. The scope of this standard is well-defined, establishing parameters for diameter series 0 and 2, with an emphasis on normal clearance categories. This specificity is vital, as it aligns with the unique requirements of various aircraft designs and operational conditions. By focusing on bearings capable of withstanding temperatures ranging from -54°C to +150°C, the standard guarantees functionality across a broad spectrum of aerospace environments, which is essential for both safety and performance. One of the strengths of SIST EN 3285:2001 lies in its rigorous approach to defining dimensions and load capabilities. This attention to detail ensures that manufacturers can produce bearings that meet exacting standards, ultimately leading to improved reliability in aircraft operations. Additionally, the standard's focus on cadmium plating adds a layer of corrosion resistance, thereby enhancing the longevity and durability of the bearings used in challenging aerospace conditions. The relevance of this standard cannot be overstated, as it directly impacts the performance and safety of airframe structures. By providing clear guidance on the specifications and testing of these bearings, SIST EN 3285:2001 aids manufacturers in producing high-quality components that comply with industry norms. Furthermore, its adoption fosters interoperability and standardization across the aerospace sector, contributing to the overall safety and efficiency of air travel. In summary, SIST EN 3285:2001 serves as a foundational document in the aerospace industry, offering comprehensive specifications for rigid single row ball bearings. Its focus on temperature tolerance, dimensional accuracy, and protective coatings underlines its importance in ensuring the reliability and safety of aerospace applications.

Die Norm SIST EN 3285:2001 behandelt die Spezifikationen für starre einreihige Kugellager aus Stahl, die mit Cadmium beschichtet sind und in den Durchmesserserien 0 und 2 ausgeführt sind. Diese Norm ist von zentraler Bedeutung für die Luftfahrtindustrie, insbesondere beim Einsatz in der Flugzeugstruktur und deren Steuermechanismen. Die Festlegungen der Norm konzentrieren sich auf Kugellager, die speziell für langsame Rotationen und Oszillationen unter Last konzipiert sind und somit eine hohe Maßgenauigkeit und Stabilität gewährleisten. Ein herausragendes Merkmal der SIST EN 3285:2001 ist der breite Temperaturbereich, in dem die definierten Luftfahrzeuglager eingesetzt werden können. Sie sind sowohl für extrem niedrige Temperaturen von -54 °C als auch für hohe Temperaturen bis zu +150 °C geeignet. Dies zeigt die Vielseitigkeit der Kugellager und deren Fähigkeit, auch unter herausfordernden Bedingungen zuverlässig zu funktionieren. Die Norm legt nicht nur die physikalischen Dimensionen der Lager fest, sondern definiert auch die zulässigen Belastungen, was die Sicherheit und Langlebigkeit der im Flugzeug eingesetzten Teile erhöht. Ein weiterer Vorteil der Norm ist die klare Kategorisierung der Spielräume, die sicherstellt, dass die Lager präzise in ihren vorgesehenen Anwendungen agieren, was zu einer erhöhten Betriebssicherheit führt. Die Relevanz der SIST EN 3285:2001 liegt in ihrer Fähigkeit, standardisierte und bewährte Produkte für die Luftfahrtindustrie bereitzustellen. Durch die Festlegung einheitlicher Kriterien für die Fertigung und Prüfung dieser Kugellager wird nicht nur die Qualität gesichert, sondern auch die Kompatibilität zwischen verschiedenen Herstellern und deren Komponenten gefördert. Dies ist entscheidend, um die hohen Anforderungen der Luftfahrttechnik zu erfüllen und eine konstante Leistung zu gewährleisten. Zusammenfassend lässt sich sagen, dass die SIST EN 3285:2001 eine umfassende und gut strukturierte Norm ist, die die Attribute der starren einreihigen Kugellager detailliert beschreibt und somit einen wichtigen Beitrag zur Sicherheit und Zuverlässigkeit in der Luftfahrtindustrie leistet.