ABG

Overview of ABG Series Aerospace Spherical Bearings

The ABG Series spherical bearings are advanced aerospace-grade components designed for applications requiring sealed construction and high durability. Their self-aligning design and tight sealing make them ideal for linkage and pivot points in airframes, control systems, and landing gear mechanisms.

Key Features and Technical Specifications

• Surface Treatment: The spherical inner diameter (ID) of the bearing race is treated with either nitriding or Malcomizing. These surface hardening processes enhance resistance to wear, corrosion, and fatigue—critical for aerospace reliability.
• Sealed Design: Unlike open spherical bearings, the ABG Series includes integrated seals that protect internal components from contaminants such as dust, debris, and moisture. This feature extends bearing service life and reduces maintenance frequency.
• Smooth Ball Rotation: Balls rotate freely under light finger pressure at room temperature (72°F / 22°C), ensuring consistent low-friction performance during oscillating and rotational movement.
• Full Interchangeability: Bearing balls are manufactured to tight tolerances and are fully interchangeable without requiring selective assembly. This simplifies logistics and streamlines installation and replacement in the field.
• Temperature Range: Operates effectively in temperatures from -65°F to +350°F (-54°C to +177°C), making it suitable for both high-altitude cold environments and high-heat zones within the aircraft structure.

Advantages for Aerospace Applications

• Sealed design ensures longer operational life and greater environmental protection
• Accommodates angular misalignment and oscillation under dynamic loads
• Improved resistance to corrosion and wear through specialized race treatments
• Interchangeability simplifies inventory management and maintenance procedures

Common Applications

The ABG Series spherical bearings are ideally used in:

• Flight control actuators and linkages
• Landing gear pivots and strut assemblies
• Rotor head and blade pitch mechanisms
• Structural joints and high-misalignment couplings

Customization Options

To meet specific aerospace system requirements, ABG Series bearings can be customized upon request. Options include alternate sealing configurations, material upgrades (e.g., stainless steel, titanium), tighter tolerance classes, and special lubricants suited for extreme operating conditions.