Aurora Bearing SAE Series Specification Spherical Bearings

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.

• Ball - 440C stainless steel per AMS 5630 - heat treated.
• Optional Ball - 13-8 Mo stainless steel per AMS 5629 - heat treated. (Specify by adding suffix "C" ex.: ANC-3TC)
• Race - 17-4 PH stainless steel per AMS 5643 - heat treated.
• Optional plating on race outside diameter can be added by adding suffix "P" for zinc nickel or cad plating or suffix "E" for zinc nickel plating (ex.: ANC-3TP/ANC-3TE)
• PTFE Liner - (AT ...

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.

• Ball - 440C stainless steel per AMS 5630 - heat treated.
• Optional Ball - 13-8 Mo stainless steel per AMS 5629 - heat treated. (Specify by adding suffix "C" ex.: AWC-3TC)
• Race - 17-4PH stainless steel per AMS 5643 - heat treated.
• Optional plating on race outside diameter can be added by adding suffix "P" for zinc nickel or cad plating or suffix "E" for zinc nickel plating (ex.: AWC-3TP/AWC-3TE)
• PTFE Liner - (AT ...