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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 - 17-4 PH stainless steel - heat treated.
  • Ball - 440C stainless steel - heat treated - hard chrome plated (MFG option).
  • Race - 17-4 PH stainless steel - 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.
  • Keyways are available. Units are supplied without keyways. When a keyway is required, specify by adding suffix "K". Ex.: HXAM-3ET-10K.
  • As applicable, keyways will conform to SAE-AS81935/3 or NAS 559.
Unit of Measure

Key Dimensions

Part Number

 N/A HXAB-4ET-10K

Thread Type

 N/A Left Hand

Thread Configuration

 N/A Male

B - Ball Bore

 N/A .2500 in

W - Ball Width

 N/A .593 in

H - Head Width

 N/A .265 in

A - Base to Center

 N/A 1.938 in

D - Head Diameter

 N/A 1.000 in

O - Ball Shoulder Diameter

 N/A .390 in

Ball Diameter

 N/A .593 in

C - Thread Length

 N/A 1.187 in

Thread Size

 N/A 5/16-24

Thread Class

 N/A UNJF-3A-LH

Keyway

 N/A Keyway

G - Base to Center of Keyway Radius

 N/A 1.277 in

K - Keyway Width

 N/A .062 in

P - Keyway Depth

 N/A .268 in

R

 N/A 0.255 in

a - Misalignment Angle

 N/A 23 º

No Load Rotational Breakaway Torque

 N/A 1 to 15 in·lb

Ultimate Radial Static Load Capacity

 N/A 7,574 lbs

Approximate Brg. Weight

N/A .11 lb

Note

 N/A For dimensional tolerances of listed features, see the PDF version of the S222 suplement catalog under the View Product Catalogs" tab from the home page."