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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Key Features

  • Available in single, double and multi-row configurations, as well as proprietary sizes
  • Designed in collaboration with OE engineers to design, engineer and test bearings for premium performance in many applications
  • Power dense designs allow for heavier loads and can help extend bearing life
  • Optimized internal geometry lower torque and operating temperatures to extend lubrication system life
  • Can be designed to withstand high-corrosive, high-temperature and vacuum or low-lubrication environments with proprietary enhancements
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

HM256849-902C4 N/A 11.8125 in300.038 mm N/A 16.625 in422.275 mm N/A 5.375 in136.525 mm N/A 6.875 in174.625 mm N/A 3.25 in82.55 mm N/A 508000 lbf2260000 N N/A 75600 lbf336000 N N/A HM256800 N/A
HM256849-902F1 N/A 11.8125 in300.038 mm N/A 16.625 in422.275 mm N/A 5.375 in136.525 mm N/A 6.875 in174.625 mm N/A 3.25 in82.55 mm N/A 508000 lbf2260000 N N/A 75600 lbf336000 N N/A HM256800 N/A
HM259048-902A2 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 661000 lbf2940000 N N/A 98500 lbf438000 N N/A HM259000 N/A
HM259048-902A3 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 661000 lbf2940000 N N/A 98500 lbf438000 N N/A HM259000 N/A
HM259048-902A4 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 661000 lbf2940000 N N/A 98500 lbf438000 N N/A HM259000 N/A
HM259048-902A6 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 661000 lbf2940000 N N/A 98500 lbf438000 N N/A HM259000 N/A
HM259048-902A8 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 661000 lbf2940000 N N/A 98500 lbf438000 N N/A HM259000 N/A
HM259049-902D4 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 656000 lbf2920000 N N/A 97800 lbf435000 N N/A HM259000 N/A
HM259049-902B1 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 656000 lbf2920000 N N/A 97800 lbf435000 N N/A HM259000 N/A
HM259049-90062 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 656000 lbf2920000 N N/A 97800 lbf435000 N N/A HM259000 N/A
HM259049-902D5 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 656000 lbf2920000 N N/A 97800 lbf435000 N N/A HM259000 N/A
HM259049-902D6 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 656000 lbf2920000 N N/A 97800 lbf435000 N N/A HM259000 N/A
HM259049-902E1 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 656000 lbf2920000 N N/A 97800 lbf435000 N N/A HM259000 N/A
HM259049-90063 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 656000 lbf2920000 N N/A 97800 lbf435000 N N/A HM259000 N/A
HM259049-90064 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 656000 lbf2920000 N N/A 97800 lbf435000 N N/A HM259000 N/A
HM259049-90068 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 656000 lbf2920000 N N/A 97800 lbf435000 N N/A HM259000 N/A
HM259049-902A6 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 656000 lbf2920000 N N/A 97800 lbf435000 N N/A HM259000 N/A
HM259049-90066 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 656000 lbf2920000 N N/A 97800 lbf435000 N N/A HM259000 N/A
HM259049-902A8 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 656000 lbf2920000 N N/A 97800 lbf435000 N N/A HM259000 N/A
HM259049-902A9 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 656000 lbf2920000 N N/A 97800 lbf435000 N N/A HM259000 N/A
HM259049-902B9 N/A 12.5 in317.5 mm N/A 17.625 in447.675 mm N/A 5.75 in146.05 mm N/A 7.1249 in180.972 mm N/A 3.375 in85.725 mm N/A 656000 lbf2920000 N N/A 97800 lbf435000 N N/A HM259000 N/A
HM261049-90078 N/A 13.125 in333.375 mm N/A 18.5 in469.9 mm N/A 6 in152.4 mm N/A 7.5 in190.5 mm N/A 3.5625 in90.488 mm N/A 626000 lbf2780000 N N/A 93200 lbf415000 N N/A HM261000 N/A
HM261049-90076 N/A 13.125 in333.375 mm N/A 18.5 in469.9 mm N/A 6 in152.4 mm N/A 7.5 in190.5 mm N/A 3.5625 in90.488 mm N/A 626000 lbf2780000 N N/A 93200 lbf415000 N N/A HM261000 N/A
HM261049-90079 N/A 13.125 in333.375 mm N/A 18.5 in469.9 mm N/A 6 in152.4 mm N/A 7.5 in190.5 mm N/A 3.5625 in90.488 mm N/A 626000 lbf2780000 N N/A 93200 lbf415000 N N/A HM261000 N/A
HM261049-90080 N/A 13.125 in333.375 mm N/A 18.5 in469.9 mm N/A 6 in152.4 mm N/A 7.5 in190.5 mm N/A 3.5625 in90.488 mm N/A 626000 lbf2780000 N N/A 93200 lbf415000 N N/A HM261000 N/A
Unit of Measure
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