SIST EN 2079:2001

Overview

SIST EN 2079:2001 is a technical standard developed by the Slovenski inštitut za standardizacijo (SIST) as part of the European Aerospace Standards series. It specifies the essential characteristics and requirements for precision ball bearings made from corrosion resisting steel. These bearings are designed with flanges, feature radial contact, and utilize a deep groove configuration without a filling slot. The primary use for the bearings covered in this standard is within aerospace instruments and equipment, ensuring reliability and durability in demanding environments such as aircraft and advanced instrumentation.

Key Topics

The standard focuses on several critical aspects of aerospace-grade ball bearings to ensure quality and uniformity across applications:

• Dimensions: Outlines the standard sizes and tolerances to ensure compatibility and interchangeability in aerospace equipment.
• Loads: Defines permissible loads (radial and axial) to maintain operational safety and performance under various conditions.
• Materials: Specifies the use of corrosion-resistant steel to enhance longevity and maintain functionality in harsh or corrosive environments.
• Design Features: Describes the characteristics such as flanged construction, radial contact geometry, deep groove profiles, and exclusion of filling slots.

Applications

The precision ball bearings outlined in SIST EN 2079:2001 offer significant benefits in aerospace and related industries due to their high-quality materials and design requirements:

• Aerospace Instruments: Used in navigation devices, measurement equipment, and aerospace-grade sensors requiring precise rotation and minimal friction.
• Aircraft Equipment: Applicable in flight control systems, avionics, and auxiliary systems where dependable bearing performance is critical for safety and reliability.
• Other High-Performance Sectors: Suitable for use in other precision equipment that operates under demanding conditions, such as defense or scientific instrumentation.

By adhering to this standard, manufacturers and suppliers ensure that bearings used in sensitive aerospace applications meet strict criteria for dimensional accuracy, mechanical load capacity, and corrosion resistance, thereby supporting both performance and regulatory compliance.

Related Standards

The following related standards may also apply to designers, manufacturers, and engineers working with aerospace ball bearings and related components:

• EN 2079:1995: The European equivalent of SIST EN 2079:2001, detailing identical requirements across the European Union.
• Aerospace ball bearing standards: Including series and specifications focusing on different types of bearing geometries, materials, and load requirements.
• Components for aerospace construction (ICS 49.035): Standards addressing various critical components used in the manufacturing and maintenance of aerospace equipment.
• Corrosion resisting steel specifications: General standards for selection and testing of steels used in corrosive or high-performance environments.

For organizations involved in the aerospace sector, implementing SIST EN 2079:2001 ensures compatibility, safety, and efficiency in precision instruments and aircraft systems, supporting the industry’s rigorous standards for operational performance.