ADBN / ADWN

Overview of ADBN / ADWN Series Aerospace Spherical Bearings

1. Design and Configuration

The ADBN / ADWN Series features a self-lubricating liner and integral seals, offering maintenance-free operation in aerospace systems. ADBN refers to the narrow design, while ADWN designates the wide version, giving engineers flexibility to meet load and space requirements in various aircraft assemblies.

2. Sealed Construction for Enhanced Protection

The sealed design prevents contamination from dust, moisture, and debris, thereby extending bearing life and reducing maintenance frequency—critical advantages in aerospace environments where regular servicing is challenging. (For more technical sealing details, refer to page 70 of the full specification catalog.)

3. Operating Temperature Range

The standard operating range is -65°F to 325°F (-54°C to 163°C), compliant with AS81820 requirements. With appropriate material selections, these bearings can be customized to function reliably in even broader temperature extremes, making them ideal for high-altitude and variable-climate conditions.

4. Material and Finish Options

• PH13-8Mo Ball Option: Bearings equipped with PH13-8Mo stainless steel balls are indicated by the “13-8” suffix (e.g., ADB16VN13-8(L)). This material offers high strength and corrosion resistance, suitable for aggressive environments.
• Cadmium Plating Option: For bearings requiring cadmium plating per AMS-QQ-P-416, Type II, Class 2, a “P” suffix is added (e.g., ADW16VNP(L)). This coating enhances corrosion protection and surface wear resistance, especially in high-humidity or salt-rich atmospheres.

5. Aerospace Qualification

The bonded liner used in the ADBN / ADWN bearings is qualified to AS81820, ensuring the product meets stringent aerospace reliability, wear, and load-carrying performance standards.

Typical Applications

ADBN / ADWN Series Aerospace Spherical Bearings are ideal for use in aircraft flight control systems, landing gear linkages, engine mounts, and other critical rotating or oscillating joints where precision, sealing, and maintenance-free operation are essential.