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 - Alloy steel - heat treated - protective coated for corrosion resistance.
  • Ball - Alloy steel - heat treated - hard chrome plated.
  • Race - Low carbon steel (or Alloy steel - heat treated)- protective coated for corrosion resistance - PTFE lined. (See 2D Sales Drawing for details.)
XM & XB Image
XALM & XALB Dimensional Drawing
Unit of Measure
1 2 

Part Number

Thread Type

B - Ball Bore

W - Ball Width

H - Head Width

A - Base to Center

D - Head Diameter

C - Thread Length

Thread Size

Ultimate Radial Static Load Capacity

CAD

AM-4T-9 N/A Right Hand N/A .2500 in N/A .375 in N/A .281 in N/A 1.562 in N/A .740 in N/A 1.000 in N/A 5/16-24 N/A 6,158 lbs N/A CAD
AB-4T-9 N/A Left Hand N/A .2500 in N/A .375 in N/A .281 in N/A 1.562 in N/A .740 in N/A 1.000 in N/A 5/16/24 N/A 6,158 lbs N/A CAD
AM-6T-6 N/A Right Hand N/A .3750 in N/A .500 in N/A .406 in N/A 1.938 in N/A 1.000 in N/A 1.219 in N/A 1/2-20 N/A 9,544 lbs N/A CAD
AB-6T-6 N/A Left Hand N/A .3750 in N/A .500 in N/A .406 in N/A 1.938 in N/A 1.000 in N/A 1.219 in N/A 1/2-20 N/A 9,544 lbs N/A CAD
AM-6T-7 N/A Right Hand N/A .3750 in N/A .625 in N/A .500 in N/A 2.438 in N/A 1.312 in N/A 1.500 in N/A 5/8-18 N/A 16,238 lbs N/A CAD
AB-6T-7 N/A Left Hand N/A .3750 in N/A .625 in N/A .500 in N/A 2.438 in N/A 1.312 in N/A 1.500 in N/A 5/8-18 N/A 16,238 lbs N/A CAD
AM-6T-15 N/A Right Hand N/A .3750 in N/A .625 in N/A .500 in N/A 2.438 in N/A 1.312 in N/A 1.500 in N/A 1/2-20 N/A 16,238 lbs N/A CAD
AB-6T-15 N/A Left Hand N/A .3750 in N/A .625 in N/A .500 in N/A 2.438 in N/A 1.312 in N/A 1.500 in N/A 1/2-20 N/A 16,238 lbs N/A CAD
AM-12T-22 N/A Right Hand N/A .7500 in N/A .875 in N/A .687 in N/A 2.875 in N/A 1.750 in N/A 1.750 in N/A 7/8-14 N/A 28,081 lbs N/A CAD
AB-12T-22 N/A Left Hand N/A .7500 in N/A .875 in N/A .687 in N/A 2.875 in N/A 1.750 in N/A 1.750 in N/A 7/8-14 N/A 28,081 N/A CAD
AM-12-2 N/A Right Hand N/A .7500 in N/A N/A .875 in N/A 2.875 in N/A 1.750 in N/A 1.750 in N/A 3/4-16 N/A N/A CAD
AB-12-2 N/A Left Hand N/A .7500 in N/A N/A .875 in N/A 2.875 in N/A 1.750 in N/A 1.750 in N/A 3/4-16 N/A N/A CAD
RAM-8T-5 N/A Right Hand N/A .5000 in N/A .750 in N/A .687 in N/A 2.875 in N/A 1.750 in N/A 1.687 in N/A 3/4-16 N/A 27,021 lbs N/A CAD
RAB-8T-5 N/A Left Hand N/A .5000 in N/A .750 in N/A .687 in N/A 2.875 in N/A 1.750 in N/A 1.687 in N/A 3/4-16 N/A 27,021 lbs N/A CAD
RAM-14T-1 N/A Right Hand N/A .8750 in N/A .875 in N/A .765 in N/A 3.375 in N/A 2.000 in N/A 2.000 in N/A 7/8-14 N/A 45,045 lbs N/A CAD
RAB-14T-1 N/A Left Hand N/A .8750 in N/A .875 in N/A .765 in N/A 3.375 in N/A 2.000 in N/A 2.000 in N/A 7/8-14 N/A 45,045 lbs N/A CAD
RAM-16T-1 N/A Right Hand N/A 1.0000 in N/A 1.375 in N/A 1.000 in N/A 4.125 in N/A 2.775 in N/A 2.125 in N/A 1-14 N/A 100,643 lbs N/A CAD
RAB-16T-1 N/A Left Hand N/A 1.0000 in N/A 1.375 in N/A 1.000 in N/A 4.125 in N/A 2.775 in N/A 2.125 in N/A 1-14 N/A 100,643 lbs N/A CAD
RAM-16T-3 N/A Right Hand N/A 1.0000 in N/A 1.375 in N/A 1.000 in N/A 4.125 in N/A 2.775 in N/A 2.343 in N/A 1 1/4-12 N/A 100,643 lbs N/A CAD
RAB-16T-3 N/A Left Hand N/A 1.0000 in N/A 1.375 in N/A 1.000 in N/A 4.125 in N/A 2.775 in N/A 2.343 in N/A 1 1/4-12 N/A 100,643 lbs N/A CAD
RXAM-8T-3 N/A Right Hand N/A .5000 in N/A .750 in N/A .562 in N/A 2.875 in N/A 1.750 in N/A 1.687 in N/A 3/4-16 N/A 39,674 lbs N/A CAD
RXAB-8T-3 N/A Left Hand N/A .5000 in N/A .750 in N/A .562 in N/A 2.875 in N/A 1.750 in N/A 1.687 in N/A 3/4-16 N/A 39,674 lbs N/A CAD
RXAM-12T-1 N/A Right Hand N/A .7500 in N/A .875 in N/A .687 in N/A 3.375 in N/A 2.000 in N/A 1.875 in N/A 7/8-14 N/A 55,692 lbs N/A CAD
RXAB-12T-1 N/A Left Hand N/A .7500 in N/A .875 in N/A .687 in N/A 3.375 in N/A 2.000 in N/A 1.875 in N/A 7/8-14 N/A 55,692 lbs N/A CAD
RXAM-14T-1 N/A Right Hand N/A .8750 in N/A .875 in N/A .765 in N/A 3.500 in N/A 2.325 in N/A 1.875 in N/A 1-14 N/A 84,897 lbs N/A CAD
Unit of Measure
1 2