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

34306-90076 N/A 3.0625 in77.788 mm N/A 4.7812 in121.442 mm N/A 1.5 in38.1 mm N/A 2.0625 in52.388 mm N/A 0.906 in23.012 mm N/A 47400 lbf211000 N N/A 7060 lbf31400 N N/A 34000 N/A
34307 / 34478D N/A 3.0625 in77.788 mm N/A 4.7812 in121.442 mm N/A 1.5 in38.1 mm N/A 2.0625 in52.388 mm N/A 0.906 in23.012 mm N/A 40000 lbf178000 N N/A 5960 lbf26500 N N/A 34000 N/A
34306-90051 N/A 3.0625 in77.788 mm N/A 4.7812 in121.442 mm N/A 1.5 in38.1 mm N/A 2.0625 in52.388 mm N/A 0.906 in23.012 mm N/A 47400 lbf211000 N N/A 7060 lbf31400 N N/A 34000 N/A
34306-90052 N/A 3.0625 in77.788 mm N/A 4.7812 in121.442 mm N/A 1.5 in38.1 mm N/A 2.0625 in52.388 mm N/A 0.906 in23.012 mm N/A 47400 lbf211000 N N/A 7060 lbf31400 N N/A 34000 N/A
34306-90086 N/A 3.0625 in77.788 mm N/A 4.7812 in121.442 mm N/A 1.5 in38.1 mm N/A 2.0625 in52.388 mm N/A 0.906 in23.012 mm N/A 47400 lbf211000 N N/A 7060 lbf31400 N N/A 34000 N/A
34306-903A2 N/A 3.0625 in77.788 mm N/A 4.7812 in121.442 mm N/A 1.5 in38.1 mm N/A 2.0625 in52.388 mm N/A 0.906 in23.012 mm N/A 47400 lbf211000 N N/A 7060 lbf31400 N N/A 34000 N/A
495AS-90231 N/A 3.0625 in77.788 mm N/A 5.3750 in136.525 mm N/A 2.1250 in53.975 mm N/A 2.75 in69.85 mm N/A 1.172 in29.769 mm N/A 60500 lbf269000 N N/A 9000 lbf40000 N N/A 495 N/A
495AS / 493DC N/A 3.0625 in77.788 mm N/A 5.3750 in136.525 mm N/A 2.1250 in53.975 mm N/A 2.75 in69.85 mm N/A 1.172 in29.769 mm N/A 60500 lbf269000 N N/A 9000 lbf40000 N N/A 495 N/A
495AS-90306 N/A 3.0625 in77.788 mm N/A 5.3750 in136.525 mm N/A 2.1250 in53.975 mm N/A 2.75 in69.85 mm N/A 1.172 in29.769 mm N/A 60500 lbf269000 N N/A 9000 lbf40000 N N/A 495 N/A
595A / 592D N/A 3.1250 in79.375 mm N/A 6.0000 in152.400 mm N/A 2.5 in63.5 mm N/A 3.25 in82.55 mm N/A 1.43 in36.322 mm N/A 84600 lbf376000 N N/A 12600 lbf56000 N N/A 595 N/A
661-90047 N/A 3.1250 in79.375 mm N/A 6.0000 in152.400 mm N/A 3 in76.2 mm N/A 3.7499 in95.247 mm N/A 1.625 in41.275 mm N/A 96700 lbf430000 N N/A 14400 lbf64000 N N/A 655 N/A
661 / 654DC N/A 3.1250 in79.375 mm N/A 6.0000 in152.400 mm N/A 3 in76.2 mm N/A 3.7499 in95.247 mm N/A 1.625 in41.275 mm N/A 96700 lbf430000 N N/A 14400 lbf64000 N N/A 655 N/A
661-90087 N/A 3.1250 in79.375 mm N/A 6.0000 in152.400 mm N/A 3 in76.2 mm N/A 3.7499 in95.247 mm N/A 1.625 in41.275 mm N/A 96700 lbf430000 N N/A 14400 lbf64000 N N/A 655 N/A
750W / 742D N/A 3.1250 in79.375 mm N/A 6.125 in155.575 mm N/A 3.375 in85.725 mm N/A 4 in101.6 mm N/A 1.8375 in46.673 mm N/A 124000 lbf553000 N N/A 18500 lbf82400 N N/A 745 N/A
750 / 742D N/A 3.1250 in79.375 mm N/A 6.125 in155.575 mm N/A 3.375 in85.725 mm N/A 4 in101.6 mm N/A 1.8375 in46.673 mm N/A 147000 lbf656000 N N/A 21900 lbf97600 N N/A 745 N/A
750 / 742DC N/A 3.1250 in79.375 mm N/A 6.125 in155.575 mm N/A 3.375 in85.725 mm N/A 4 in101.6 mm N/A 1.8375 in46.673 mm N/A 147000 lbf656000 N N/A 21900 lbf97600 N N/A 745 N/A
750W / 742DC N/A 3.1250 in79.375 mm N/A 6.125 in155.575 mm N/A 3.375 in85.725 mm N/A 4 in101.6 mm N/A 1.8375 in46.673 mm N/A 124000 lbf553000 N N/A 18500 lbf82400 N N/A 745 N/A
756A / 752D N/A 3.1250 in79.375 mm N/A 6.3750 in161.925 mm N/A 3.375 in85.725 mm N/A 4.1249 in104.772 mm N/A 1.9 in48.26 mm N/A 128000 lbf570000 N N/A 19100 lbf84800 N N/A 755 N/A
756A / 752DC N/A 3.1250 in79.375 mm N/A 6.3750 in161.925 mm N/A 3.375 in85.725 mm N/A 4.1249 in104.772 mm N/A 1.9 in48.26 mm N/A 128000 lbf570000 N N/A 19100 lbf84800 N N/A 755 N/A
HH221431 / HH221410D N/A 3.1250 in79.375 mm N/A 7.5 in190.5 mm N/A 4.125 in104.775 mm N/A 4.9999 in126.997 mm N/A 2.2650 in57.531 mm N/A 209000 lbf929000 N N/A 31100 lbf138000 N N/A HH221400 N/A
578-90045 N/A 3.149 in79.985 mm N/A 5.5115 in139.992 mm N/A 2.625 in66.675 mm N/A 3.25 in82.55 mm N/A 1.4212 in36.098 mm N/A 80900 lbf360000 N N/A 12100 lbf53600 N N/A 575 N/A
578 / 572DC N/A 3.149 in79.985 mm N/A 5.5115 in139.992 mm N/A 2.625 in66.675 mm N/A 3.25 in82.55 mm N/A 1.4212 in36.098 mm N/A 80900 lbf360000 N N/A 12100 lbf53600 N N/A 575 N/A
578-90120 N/A 3.149 in79.985 mm N/A 5.5115 in139.992 mm N/A 2.625 in66.675 mm N/A 3.25 in82.55 mm N/A 1.4212 in36.098 mm N/A 80900 lbf360000 N N/A 12100 lbf53600 N N/A 575 N/A
578-90107 N/A 3.149 in79.985 mm N/A 5.5115 in139.992 mm N/A 2.625 in66.675 mm N/A 3.25 in82.55 mm N/A 1.4212 in36.098 mm N/A 80900 lbf360000 N N/A 12100 lbf53600 N N/A 575 N/A
578-90233 N/A 3.149 in79.985 mm N/A 5.5115 in139.992 mm N/A 2.625 in66.675 mm N/A 3.25 in82.55 mm N/A 1.4212 in36.098 mm N/A 80900 lbf360000 N N/A 12100 lbf53600 N N/A 575 N/A
Unit of Measure
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