ADBL / ADWL

Technical Overview of ADBL / ADWL Series Aerospace Spherical Bearings

1. Standards Compliance

The ADBL / ADWL Series Aerospace Spherical Bearings in sizes 4 through 16 fully comply with the dimensional, material, and configuration requirements of the AS81820 aerospace standard. This ensures consistency, interchangeability, and high reliability in aerospace control systems and mechanical linkages.

2. Extended Size Range

While sizes 4 through 16 meet current aerospace standards, bearing sizes 18 through 24 are not currently covered by AS81820. These larger sizes may still be engineered to meet specific application needs, but users should verify performance and compatibility with the manufacturer before selection.

3. Temperature Performance

The standard operating temperature range for ADBL / ADWL bearings is -65°F to 325°F (-54°C to 163°C), as specified in AS81820. However, with advanced material and liner options, the series can be adapted for broader temperature requirements, enabling use in extreme aerospace environments.

4. Self-Lubricating Design

Each bearing features a self-lubricating liner bonded to the bore, providing dry-film lubrication without the need for re-greasing. This design reduces maintenance and enhances long-term reliability, especially in inaccessible or mission-critical aerospace systems.

5. Configuration Flexibility

The ADBL designation refers to narrow-body bearings, while ADWL refers to wide-body designs. This allows engineers to choose the optimal geometry based on load capacity, space constraints, and dynamic performance requirements.

Applications

Ideal for aerospace control linkages, actuation systems, and structural joints, the ADBL / ADWL Series is suited for use in aircraft, spacecraft, and advanced defense platforms where durability, low friction, and extended service life are critical.