EN 3283:1994

Overview

EN 3283:1994 (adopted as SIST EN 3283:2001) is a CEN aerospace standard that defines the characteristics, dimensions and load ratings for rigid single row ball bearings made from corrosion-resisting steel, intended for airframe rolling applications. It covers bearings of diameter series 8 and 9 designed to withstand slow rotations and oscillations under load and to operate in aircraft structures and control mechanisms within the temperature range -54 °C to +150 °C.

Key topics and requirements

• Scope and intended use
  • Bearings for use between fixed and moving parts of the aircraft structure and control systems.
  • Specifically for slow rotations and oscillatory motion rather than high-speed applications.
• Bearing type and material
  • Rigid single row ball bearings manufactured from corrosion-resisting steel suitable for aerospace environments.
• Dimensions
  • Standardized inner/outer diameters, widths and related dimensional series information for diameter series 8 and 9 (as referenced in the standard).
• Loads and ratings
  • Defined static and dynamic load considerations appropriate for airframe rolling bearings (standard provides methods/values for designing/assessing loads for these series).
• Environmental and temperature limits
  • Operational suitability specified from -54 °C to +150 °C, addressing cryogenic to elevated temperature service in aircraft.
• Language and adoption
  • Published in multiple languages (English, German, French) and adopted nationally (e.g., SIST EN 3283:2001). Reproduction restrictions apply.

Applications

• Aerospace component designers specifying rolling elements for airframes and flight control linkages.
• Bearing manufacturers producing corrosion-resisting steel single row ball bearings to aerospace requirements.
• Maintenance, repair and overhaul (MRO) organizations selecting replacement bearings for control mechanisms and structural joints.
• Procurement, quality assurance and airworthiness authorities requiring standardized bearing dimensions and load data for certification and compatibility.
• Suppliers and engineers working on low-speed, oscillatory bearing applications in fixed-wing and rotary aircraft.

Related standards

• EN 3283 complements other aerospace and bearing standards covering high-speed bearings, materials, lubrication and qualification testing. It is indexed under ICS 49.035 (Components for aerospace construction) and is often used alongside national adoptions such as SIST EN 3283:2001.

Keywords: EN 3283:1994, airframe rolling bearings, rigid single row ball bearings, corrosion resisting steel, diameter series 8 and 9, dimensions and loads, aerospace bearings, aircraft structural bearings, CEN standard.