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 - 4340 steel - heat treated - protective coated for corrosion resistance.
- Ball - Alloy steel - heat treated - hard chrome plated.
- Race - 17-4 PH stainless steel - heat treated.
- PTFE liner - (AT 3200) Permanently bonded to race inside diameter. Qualified to SAE-AS81820 Type A.