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

3780-90061 N/A 2 in50.8 mm N/A 3.6718 in93.264 mm N/A 2.0625 in52.388 mm N/A 2.5625 in65.088 mm N/A 1.193 in30.302 mm N/A 47800 lbf213000 N N/A 7120 lbf31700 N N/A 3700 N/A
3780-90064 N/A 2 in50.8 mm N/A 3.6718 in93.264 mm N/A 2.0625 in52.388 mm N/A 2.5625 in65.088 mm N/A 1.193 in30.302 mm N/A 47800 lbf213000 N N/A 7120 lbf31700 N N/A 3700 N/A
3780-90137 N/A 2 in50.8 mm N/A 3.6718 in93.264 mm N/A 2.0625 in52.388 mm N/A 2.5625 in65.088 mm N/A 1.193 in30.302 mm N/A 47800 lbf213000 N N/A 7120 lbf31700 N N/A 3700 N/A
3780-90162 N/A 2 in50.8 mm N/A 3.6718 in93.264 mm N/A 2.0625 in52.388 mm N/A 2.5625 in65.088 mm N/A 1.193 in30.302 mm N/A 47800 lbf213000 N N/A 7120 lbf31700 N N/A 3700 N/A
3780-902A4 N/A 2 in50.8 mm N/A 3.6718 in93.264 mm N/A 2.0625 in52.388 mm N/A 2.5625 in65.088 mm N/A 1.193 in30.302 mm N/A 47800 lbf213000 N N/A 7120 lbf31700 N N/A 3700 N/A
3780-902A6 N/A 2 in50.8 mm N/A 3.6718 in93.264 mm N/A 2.0625 in52.388 mm N/A 2.5625 in65.088 mm N/A 1.193 in30.302 mm N/A 47800 lbf213000 N N/A 7120 lbf31700 N N/A 3700 N/A
3784-90084 N/A 2 in50.8 mm N/A 3.6718 in93.264 mm N/A 2.0625 in52.388 mm N/A 2.5625 in65.088 mm N/A 1.193 in30.302 mm N/A 47800 lbf213000 N N/A 7120 lbf31700 N N/A 3700 N/A
33889-90029 N/A 2 in50.8 mm N/A 3.7500 in95.250 mm N/A 2.0624 in52.385 mm N/A 2.5000 in63.500 mm N/A 1.1250 in28.575 mm N/A 50800 lbf226000 N N/A 7560 lbf33600 N N/A 33800 N/A
33889 / 33821DC N/A 2 in50.8 mm N/A 3.7500 in95.250 mm N/A 2.0624 in52.385 mm N/A 2.5000 in63.500 mm N/A 1.1250 in28.575 mm N/A 50800 lbf226000 N N/A 7560 lbf33600 N N/A 33800 N/A
33889-90063 N/A 2 in50.8 mm N/A 3.7500 in95.250 mm N/A 2.0624 in52.385 mm N/A 2.5000 in63.500 mm N/A 1.1250 in28.575 mm N/A 50800 lbf226000 N N/A 7560 lbf33600 N N/A 33800 N/A
33889-90097 N/A 2 in50.8 mm N/A 3.7500 in95.250 mm N/A 2.0624 in52.385 mm N/A 2.5000 in63.500 mm N/A 1.1250 in28.575 mm N/A 50800 lbf226000 N N/A 7560 lbf33600 N N/A 33800 N/A
33889-90073 N/A 2 in50.8 mm N/A 3.7500 in95.250 mm N/A 2.0624 in52.385 mm N/A 2.5000 in63.500 mm N/A 1.1250 in28.575 mm N/A 50800 lbf226000 N N/A 7560 lbf33600 N N/A 33800 N/A
385AX / 384D N/A 2 in50.8 mm N/A 3.9370 in100.000 mm N/A 1.6875 in42.863 mm N/A 2.0624 in52.385 mm N/A 0.864 in21.946 mm N/A 42200 lbf188000 N N/A 6280 lbf28000 N N/A 385 N/A
385A-90027 N/A 2 in50.8 mm N/A 3.9370 in100.000 mm N/A 1.6875 in42.863 mm N/A 2.0624 in52.385 mm N/A 0.864 in21.946 mm N/A 42200 lbf188000 N N/A 6280 lbf28000 N N/A 385 N/A
385AS / 384D N/A 2 in50.8 mm N/A 3.9370 in100.000 mm N/A 1.6875 in42.863 mm N/A 2.0624 in52.385 mm N/A 0.864 in21.946 mm N/A 35600 lbf158000 N N/A 5300 lbf23600 N N/A 385 N/A
385AS / 384DC N/A 2 in50.8 mm N/A 3.9370 in100.000 mm N/A 1.6875 in42.863 mm N/A 2.0624 in52.385 mm N/A 0.864 in21.946 mm N/A 35600 lbf158000 N N/A 5300 lbf23600 N N/A 385 N/A
385A / 384DC N/A 2 in50.8 mm N/A 3.9370 in100.000 mm N/A 1.6875 in42.863 mm N/A 2.0624 in52.385 mm N/A 0.864 in21.946 mm N/A 42200 lbf188000 N N/A 6280 lbf28000 N N/A 385 N/A
385AX / 384DC N/A 2 in50.8 mm N/A 3.9370 in100.000 mm N/A 1.6875 in42.863 mm N/A 2.0624 in52.385 mm N/A 0.864 in21.946 mm N/A 42200 lbf188000 N N/A 6280 lbf28000 N N/A 385 N/A
385AS / 384ED N/A 2 in50.8 mm N/A 3.9370 in100.000 mm N/A 1.562 in39.675 mm N/A 1.9369 in49.197 mm N/A 0.864 in21.946 mm N/A 35600 lbf158000 N N/A 5300 lbf23600 N N/A 385 N/A
385A-99405 N/A 2 in50.8 mm N/A 3.9370 in100.000 mm N/A 1.562 in39.675 mm N/A 1.9369 in49.197 mm N/A 0.864 in21.946 mm N/A 42200 lbf188000 N N/A 6280 lbf28000 N N/A 385 N/A
385AX / 384ED N/A 2 in50.8 mm N/A 3.9370 in100.000 mm N/A 1.562 in39.675 mm N/A 1.9369 in49.197 mm N/A 0.864 in21.946 mm N/A 42200 lbf188000 N N/A 6280 lbf28000 N N/A 385 N/A
385A / 384EDC N/A 2 in50.8 mm N/A 3.9370 in100.000 mm N/A 1.562 in39.675 mm N/A 1.9369 in49.197 mm N/A 0.864 in21.946 mm N/A 42200 lbf188000 N N/A 6280 lbf28000 N N/A 385 N/A
385A / 384XD N/A 2 in50.8 mm N/A 3.9370 in100.000 mm N/A 3.7640 in95.606 mm N/A 4.1389 in105.128 mm N/A 0.864 in21.946 mm N/A 42200 lbf188000 N N/A 6280 lbf28000 N N/A 385 N/A
385AS / 384XD N/A 2 in50.8 mm N/A 3.9370 in100.000 mm N/A 3.7640 in95.606 mm N/A 4.1389 in105.128 mm N/A 0.864 in21.946 mm N/A 35600 lbf158000 N N/A 5300 lbf23600 N N/A 385 N/A
385AX / 384XD N/A 2 in50.8 mm N/A 3.9370 in100.000 mm N/A 3.7640 in95.606 mm N/A 4.1389 in105.128 mm N/A 0.864 in21.946 mm N/A 42200 lbf188000 N N/A 6280 lbf28000 N N/A 385 N/A
Unit of Measure
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