The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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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. Manufacturers option: 440C stainless steel - heat treated.
  • Race - 17-4 PH Stainless steel  - heat treated.
  • PTFE liner - (AT3200) Permanently bonded to race inside diameter. Qualified to SAE-AS81820 Type A.
PRM-T & PRB-T Image
Unit of Measure
Items PRM-T & PRB-T Image
PRM-5T
Aurora Bearing PRM-T & PRB-T Series Male Rod Ends - PTFE Lined - Self-Lubricating 		PRM-T & PRB-T Image
PRB-5T
Aurora Bearing PRM-T & PRB-T Series Male Rod Ends - PTFE Lined - Self-Lubricating 		PRM-T & PRB-T Image
PRM-6T
Aurora Bearing PRM-T & PRB-T Series Male Rod Ends - PTFE Lined - Self-Lubricating 		PRM-T & PRB-T Image
PRB-6T
Aurora Bearing PRM-T & PRB-T Series Male Rod Ends - PTFE Lined - Self-Lubricating 		PRM-T & PRB-T Image
PRM-7T
Aurora Bearing PRM-T & PRB-T Series Male Rod Ends - PTFE Lined - Self-Lubricating
Thread Type N/A Right Hand N/A Left Hand N/A Right Hand N/A Left Hand N/A Right Hand
Thread Configuration N/A Male
B - Ball Bore N/A .3125 in N/A .3125 in N/A .3750 in N/A .3750 in N/A .4375 in
W - Ball Width N/A .437 in N/A .437 in N/A .500 in N/A .500 in N/A .562 in
H - Head Width N/A .327 in N/A .327 in N/A .416 in N/A .416 in N/A .452 in
A - Base to Center N/A 1.875 in N/A 1.875 in N/A 1.938 in N/A 1.938 in N/A 2.125 in
D - Head Diameter N/A .900 in N/A .900 in N/A 1.025 in N/A 1.025 in N/A 1.150 in
Ball Diameter N/A .593 in N/A .593 in N/A .687 in N/A .687 in N/A .781 in
C - Thread Length N/A 1.187 in N/A 1.187 in N/A 1.187 in N/A 1.187 in N/A 1.281 in
Thread Size N/A 5/16-24 N/A 5/16-24 N/A 3/8-24 N/A 3/8-24 N/A 7/16-20
Thread Class N/A UNJF-3A N/A UNJF-3A-LH N/A UNJF-3A N/A UNJF-3A-LH N/A UNJF-3A
a - Misalignment Angle N/A 14 º N/A 14 º N/A 8 º N/A 8 º N/A 10 º
Ultimate Radial Static Load Capacity N/A 8,330 lbs N/A 8,330 lbs N/A 10,946 lbs N/A 10,946 lbs N/A 14,049 lbs
No Load Rotational Breakaway Torque N/A 1 to 15 in·lb
Approximate Brg. Weight N/A .09 lb N/A .09 lb N/A .14 lb N/A .14 lb N/A .18 lb