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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Available in single, double, and multi-row configurations as well as proprietary sizes, these bearings are developed in collaboration with OE engineers to deliver premium performance across various applications. Their power-dense designs support heavier loads and help extend bearing life, while optimized internal geometry reduces torque and operating temperatures to prolong lubrication system life. Additionally, they can be engineered with proprietary enhancements to withstand highly corrosive conditions, high temperatures, vacuum environments, or situations with limited lubrication.
Timken_TRB_2ROWASSY_TDO_438-90092-A3
TRB TDO Line Drawing
Unit of Measure
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Part Number

Bore (d)

O.D. (D)

Outer Ring Width (C)

Width (T)

Inner Ring Width (B)

Dynamic Radial Load Rating - 1M Revs (C1) 

Dynamic Radial Load Rating - 90M Revs (C90)

Series

CAD

A2031 / A2120D N/A 0.3125 in7.938 mm N/A 1.2000 in30.480 mm N/A 0.8370 in21.260 mm N/A 0.9999 in25.397 mm N/A 0.4246 in10.785 mm N/A 4230 lbf18800 N N/A 630 lbf2800 N N/A A2000 N/A
A2037 / A2120D N/A 0.3750 in9.525 mm N/A 1.2000 in30.480 mm N/A 0.8370 in21.260 mm N/A 0.9999 in25.397 mm N/A 0.4246 in10.785 mm N/A 4230 lbf18800 N N/A 630 lbf2800 N N/A A2000 N/A
A4044 / A4138D N/A 0.4375 in11.113 mm N/A 1.3775 in34.989 mm N/A 0.8125 in20.638 mm N/A 0.9910 in25.171 mm N/A 0.4326 in10.988 mm N/A 5150 lbf22900 N N/A 767 lbf3410 N N/A A4000 N/A
A2047-90051 N/A 0.4719 in11.986 mm N/A 1.2000 in30.480 mm N/A 0.8370 in21.260 mm N/A 0.9999 in25.397 mm N/A 0.4246 in10.785 mm N/A 4230 lbf18800 N N/A 630 lbf2800 N N/A A2000 N/A
A4049 / A4138D N/A 0.4992 in12.680 mm N/A 1.3775 in34.989 mm N/A 0.8125 in20.638 mm N/A 0.9910 in25.171 mm N/A 0.4326 in10.988 mm N/A 5150 lbf22900 N N/A 767 lbf3410 N N/A A4000 N/A
A4050 / A4138D N/A 1/2 in12.7 mm N/A 1.3775 in34.989 mm N/A 0.8125 in20.638 mm N/A 0.9910 in25.171 mm N/A 0.4326 in10.988 mm N/A 5150 lbf22900 N N/A 767 lbf3410 N N/A A4000 N/A
A4059 / A4138D N/A 0.5901 in14.989 mm N/A 1.3775 in34.989 mm N/A 0.8125 in20.638 mm N/A 0.9910 in25.171 mm N/A 0.4326 in10.988 mm N/A 5150 lbf22900 N N/A 767 lbf3410 N N/A A4000 N/A
05062 / 05180D N/A 0.6250 in15.875 mm N/A 1.8104 in45.984 mm N/A 0.9926 in25.212 mm N/A 1.2499 in31.747 mm N/A 0.5662 in14.381 mm N/A 10500 lbf46500 N N/A 1560 lbf6930 N N/A 5000 N/A
05062 / 05185D N/A 0.6250 in15.875 mm N/A 1.8504 in47.000 mm N/A 0.9926 in25.212 mm N/A 1.2499 in31.747 mm N/A 0.5662 in14.381 mm N/A 10500 lbf46500 N N/A 1560 lbf6930 N N/A 5000 N/A
21063 / 21226D N/A 0.6250 in15.875 mm N/A 2.2500 in57.150 mm N/A 1.4375 in36.513 mm N/A 1.9375 in49.213 mm N/A 0.8598 in21.839 mm N/A 21600 lbf95900 N N/A 3210 lbf14300 N N/A 21000 N/A
05066 / 05180D N/A 0.6690 in16.993 mm N/A 1.8104 in45.984 mm N/A 0.9926 in25.212 mm N/A 1.2499 in31.747 mm N/A 0.5662 in14.381 mm N/A 10500 lbf46500 N N/A 1560 lbf6930 N N/A 5000 N/A
05066 / 05185D N/A 0.6690 in16.993 mm N/A 1.8504 in47.000 mm N/A 0.9926 in25.212 mm N/A 1.2499 in31.747 mm N/A 0.5662 in14.381 mm N/A 10500 lbf46500 N N/A 1560 lbf6930 N N/A 5000 N/A
05068 / 05180D N/A 0.6875 in17.463 mm N/A 1.8104 in45.984 mm N/A 0.9926 in25.212 mm N/A 1.2499 in31.747 mm N/A 0.5662 in14.381 mm N/A 10500 lbf46500 N N/A 1560 lbf6930 N N/A 5000 N/A
05068 / 05185D N/A 0.6875 in17.463 mm N/A 1.8504 in47.000 mm N/A 0.9926 in25.212 mm N/A 1.2499 in31.747 mm N/A 0.5662 in14.381 mm N/A 10500 lbf46500 N N/A 1560 lbf6930 N N/A 5000 N/A
05070XS / 05180D N/A 0.7082 in17.988 mm N/A 1.8104 in45.984 mm N/A 0.9926 in25.212 mm N/A 1.2499 in31.747 mm N/A 0.5662 in14.381 mm N/A 10500 lbf46500 N N/A 1560 lbf6930 N N/A 5000 N/A
05070XS / 05185D N/A 0.7082 in17.988 mm N/A 1.8504 in47.000 mm N/A 0.9926 in25.212 mm N/A 1.2499 in31.747 mm N/A 0.5662 in14.381 mm N/A 10500 lbf46500 N N/A 1560 lbf6930 N N/A 5000 N/A
05075X / 05180D N/A 0.7500 in19.050 mm N/A 1.8104 in45.984 mm N/A 0.9926 in25.212 mm N/A 1.2499 in31.747 mm N/A 0.5662 in14.381 mm N/A 10500 lbf46500 N N/A 1560 lbf6930 N N/A 5000 N/A
05075 / 05180D N/A 0.7500 in19.050 mm N/A 1.8104 in45.984 mm N/A 0.9926 in25.212 mm N/A 1.2499 in31.747 mm N/A 0.5662 in14.381 mm N/A 10500 lbf46500 N N/A 1560 lbf6930 N N/A 5000 N/A
05075 / 05185D N/A 0.7500 in19.050 mm N/A 1.8504 in47.000 mm N/A 0.9926 in25.212 mm N/A 1.2499 in31.747 mm N/A 0.5662 in14.381 mm N/A 10500 lbf46500 N N/A 1560 lbf6930 N N/A 5000 N/A
05075X / 05185D N/A 0.7500 in19.050 mm N/A 1.8504 in47.000 mm N/A 0.9926 in25.212 mm N/A 1.2499 in31.747 mm N/A 0.5662 in14.381 mm N/A 10500 lbf46500 N N/A 1560 lbf6930 N N/A 5000 N/A
21075-90021 N/A 0.7500 in19.050 mm N/A 2.2500 in57.150 mm N/A 1.4375 in36.513 mm N/A 1.9375 in49.213 mm N/A 0.8598 in21.839 mm N/A 21600 lbf95900 N N/A 3210 lbf14300 N N/A 21000 N/A
21075A / 21226D N/A 0.7500 in19.050 mm N/A 2.2500 in57.150 mm N/A 1.4375 in36.513 mm N/A 1.9375 in49.213 mm N/A 0.8598 in21.839 mm N/A 21600 lbf95900 N N/A 3210 lbf14300 N N/A 21000 N/A
05079 / 05180D N/A 0.7869 in19.987 mm N/A 1.8104 in45.984 mm N/A 0.9926 in25.212 mm N/A 1.2499 in31.747 mm N/A 0.5662 in14.381 mm N/A 10500 lbf46500 N N/A 1560 lbf6930 N N/A 5000 N/A
05079 / 05185D N/A 0.7869 in19.987 mm N/A 1.8504 in47.000 mm N/A 0.9926 in25.212 mm N/A 1.2499 in31.747 mm N/A 0.5662 in14.381 mm N/A 10500 lbf46500 N N/A 1560 lbf6930 N N/A 5000 N/A
07079 / 07196D N/A 0.7874 in20.000 mm N/A 1.9687 in50.005 mm N/A 1.0000 in25.400 mm N/A 1.3126 in33.34 mm N/A 0.5614 in14.260 mm N/A 11400 lbf50700 N N/A 1700 lbf7550 N N/A 7000 N/A
Unit of Measure
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