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_1ROWASSY_TS_32005X-90KA1-A
TRB TS Line Drawing
Unit of Measure
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Part Number

Bore (d)

O.D. (D)

Inner Ring Width (B)

Outer Ring Width (C)

Width (T)

Dynamic Radial Load Rating - 1M Revs (C1)

Static Radial Load Rating (C0)

Series

CAD

3981 / 3920 N/A 2.3125 in58.738 mm N/A 4.4375 in112.713 mm N/A 1.183 in30.048 mm N/A 0.9375 in23.813 mm N/A 1.1875 in30.163 mm N/A 31200 lbf139000 N N/A 43000 lbf191000 N N/A 3900 N/A
3981 / 3925 N/A 2.3125 in58.738 mm N/A 4.4375 in112.713 mm N/A 1.183 in30.048 mm N/A 0.9375 in23.813 mm N/A 1.1876 in30.165 mm N/A 31200 lbf139000 N N/A 43000 lbf191000 N N/A 3900 N/A
3981 / 3926 N/A 2.3125 in58.738 mm N/A 4.4375 in112.713 mm N/A 1.183 in30.048 mm N/A 1.0625 in26.988 mm N/A 1.3126 in33.34 mm N/A 31200 lbf139000 N N/A 43000 lbf191000 N N/A 3900 N/A
3981-90119 N/A 2.3125 in58.738 mm N/A 4.4375 in112.713 mm N/A 1.183 in30.048 mm N/A 1.0625 in26.988 mm N/A 1.3126 in33.34 mm N/A 31200 lbf139000 N N/A 43000 lbf191000 N N/A 3900 N/A
3981-90028 N/A 2.3125 in58.738 mm N/A 4.4375 in112.713 mm N/A 1.183 in30.048 mm N/A 1.0625 in26.988 mm N/A 1.3126 in33.34 mm N/A 31200 lbf139000 N N/A 43000 lbf191000 N N/A 3900 N/A
65231 / 65500 N/A 2.3125 in58.738 mm N/A 5 in127 mm N/A 1.75 in44.45 mm N/A 1.375 in34.925 mm N/A 1.75 in44.45 mm N/A 54700 lbf243000 N N/A 66700 lbf297000 N N/A 65000 N/A
65231 / 65501 N/A 2.3125 in58.738 mm N/A 5 in127 mm N/A 1.75 in44.45 mm N/A 1.375 in34.925 mm N/A 1.75 in44.45 mm N/A 54700 lbf243000 N N/A 66700 lbf297000 N N/A 65000 N/A
3978 / 3920 N/A 2.3437 in59.530 mm N/A 4.4375 in112.713 mm N/A 1.183 in30.048 mm N/A 0.9375 in23.813 mm N/A 1.1875 in30.163 mm N/A 31200 lbf139000 N N/A 43000 lbf191000 N N/A 3900 N/A
65235 / 65500 N/A 2.3575 in59.881 mm N/A 5 in127 mm N/A 1.75 in44.45 mm N/A 1.375 in34.925 mm N/A 1.75 in44.45 mm N/A 54700 lbf243000 N N/A 66700 lbf297000 N N/A 65000 N/A
65235 / 65501 N/A 2.3575 in59.881 mm N/A 5 in127 mm N/A 1.75 in44.45 mm N/A 1.375 in34.925 mm N/A 1.75 in44.45 mm N/A 54700 lbf243000 N N/A 66700 lbf297000 N N/A 65000 N/A
745 / 742A N/A 2.3595 in59.931 mm N/A 5.9045 in149.974 mm N/A 1.8375 in46.673 mm N/A 1.4375 in36.513 mm N/A 1.7502 in44.455 mm N/A 71400 lbf318000 N N/A 93800 lbf417000 N N/A 745 N/A
745 / 742 N/A 2.3595 in59.931 mm N/A 5.9090 in150.089 mm N/A 1.8375 in46.673 mm N/A 1.4375 in36.513 mm N/A 1.75 in44.45 mm N/A 71400 lbf318000 N N/A 93800 lbf417000 N N/A 745 N/A
745 / 742V N/A 2.3595 in59.931 mm N/A 5.9090 in150.089 mm N/A 1.8375 in46.673 mm N/A 1.4375 in36.513 mm N/A 1.7502 in44.455 mm N/A 71400 lbf318000 N N/A 93800 lbf417000 N N/A 745 N/A
745 / 742X N/A 2.3595 in59.931 mm N/A 5.9090 in150.089 mm N/A 1.8375 in46.673 mm N/A 1.4375 in36.513 mm N/A 1.7502 in44.455 mm N/A 71400 lbf318000 N N/A 93800 lbf417000 N N/A 745 N/A
66589 / 66520 N/A 2.3611 in59.972 mm N/A 4.8125 in122.238 mm N/A 1.25 in31.75 mm N/A 0.9375 in23.813 mm N/A 1.3125 in33.338 mm N/A 41200 lbf183000 N N/A 39900 lbf178000 N N/A 66500 N/A
28980 / 28919 N/A 2.3613 in59.977 mm N/A 3.9362 in99.979 mm N/A 1.0000 in25.400 mm N/A 0.7500 in19.050 mm N/A 0.9688 in24.608 mm N/A 23800 lbf106000 N N/A 33500 lbf149000 N N/A 28900 N/A
28980-90011 N/A 2.3613 in59.977 mm N/A 3.9370 in100.000 mm N/A 1.0000 in25.400 mm N/A 0.7813 in19.845 mm N/A 1.0000 in25.400 mm N/A 23800 lbf106000 N N/A 33500 lbf149000 N N/A 28900 N/A
28980 / 28921A N/A 2.3613 in59.977 mm N/A 3.9370 in100.000 mm N/A 1.0000 in25.400 mm N/A 0.7813 in19.845 mm N/A 1.0001 in25.403 mm N/A 23800 lbf106000 N N/A 33500 lbf149000 N N/A 28900 N/A
28980 / 28921 N/A 2.3613 in59.977 mm N/A 3.9370 in100.000 mm N/A 1.0000 in25.400 mm N/A 0.7813 in19.845 mm N/A 1.0000 in25.400 mm N/A 23800 lbf106000 N N/A 33500 lbf149000 N N/A 28900 N/A
28980 / 28920 N/A 2.3613 in59.977 mm N/A 4.0000 in101.600 mm N/A 1.0000 in25.400 mm N/A 0.7813 in19.845 mm N/A 1.0001 in25.403 mm N/A 23800 lbf106000 N N/A 33500 lbf149000 N N/A 28900 N/A
66586 / 66520 N/A 2.3613 in59.977 mm N/A 4.8125 in122.238 mm N/A 1.25 in31.75 mm N/A 0.9375 in23.813 mm N/A 1.3125 in33.338 mm N/A 34800 lbf155000 N N/A 39900 lbf178000 N N/A 66500 N/A
39236 / 39412 N/A 2.3617 in59.987 mm N/A 4.1250 in104.775 mm N/A 0.8661 in21.999 mm N/A 0.625 in15.875 mm N/A 0.8438 in21.433 mm N/A 25800 lbf115000 N N/A 27000 lbf120000 N N/A 39000 N/A
39236 / 39414X N/A 2.3617 in59.987 mm N/A 4.1339 in105.001 mm N/A 0.8661 in21.999 mm N/A 0.6299 in15.999 mm N/A 0.8661 in21.999 mm N/A 25800 lbf115000 N N/A 27000 lbf120000 N N/A 39000 N/A
39236 / 39422 N/A 2.3617 in59.987 mm N/A 4.2188 in107.158 mm N/A 0.8661 in21.999 mm N/A 0.8348 in21.204 mm N/A 0.8662 in22.001 mm N/A 25800 lbf115000 N N/A 27000 lbf120000 N N/A 39000 N/A
3977X / 3921XA N/A 2.3617 in59.987 mm N/A 4.3301 in109.985 mm N/A 1.1024 in28.001 mm N/A 0.9375 in23.813 mm N/A 1.1713 in29.751 mm N/A 31200 lbf139000 N N/A 43000 lbf191000 N N/A 3900 N/A
Unit of Measure
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