Effective August 21st, 2023, the Naval Air Warfare Center Aircraft Division (NAWCAD) has disapproved Timken Aurora’s qualification status for SAE-AS81820 and SAE-AS81935 specifications. Timken Aurora is working diligently to get requalified.
- Body - Alloy steel - heat treated - protective coated for corrosion resistance.
- Ball - Alloy steel - heat treated - hard chrome plated.
- Race - 17-4 PH stainless steel per AMS 5643 - heat treated.
- PTFE Liner - (AT 3200) Permanently bonded to race inside diameter, qualified to SAE-AS81820 Type A.
- Temperature range: -65°F to +325°F