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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This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft.
Timken_TRB_SINGLECONE_TS
TRB TS Cone Line Drawing
Unit of Measure
« 96 97 98 99 100 

Part Number

Series

Bore (d)

Inner Ring Width (B)

Dynamic Radial Load Rating - 1M Revs (C1) 

Static Radial Load Rating (C0)

CAD

EE843220 N/A 843000 N/A 22 in558.8 mm N/A 3.4688 in88.108 mm N/A 465000 lbf2070000 N N/A 1030000 lbf4580000 N N/A
LM377449 N/A LM377400 N/A 22 in558.8 mm N/A 4.125 in104.775 mm N/A 578000 lbf2570000 N N/A 1430000 lbf6370000 N N/A
LL777148 N/A N/A 22.5 in571.5 mm N/A 1.75 in44.45 mm N/A 153000 lbf680000 N N/A 431000 lbf1920000 N N/A
M278749 N/A M278700 N/A 22.5 in571.5 mm N/A 6.125 in155.575 mm N/A 1020000 lbf4530000 N N/A 2370000 lbf10600000 N N/A
EE662303 N/A 660000 N/A 23 in584.2 mm N/A 5.5 in139.7 mm N/A 1120000 lbf4980000 N N/A 1710000 lbf7590000 N N/A
L778149 N/A N/A 23 in584.2 mm N/A 2.25 in57.15 mm N/A 271000 lbf1210000 N N/A 659000 lbf2930000 N N/A
LL778149 N/A N/A 23 in584.2 mm N/A 1.9375 in49.213 mm N/A 179000 lbf798000 N N/A 513000 lbf2280000 N N/A
680235 N/A 680000 N/A 23.5 in596.9 mm N/A 1.25 in31.75 mm N/A 77300 lbf344000 N N/A 217000 lbf963000 N N/A
EE649237 N/A 649000 N/A 23.738 in602.945 mm N/A 3.6875 in93.663 mm N/A 587000 lbf2610000 N N/A 1260000 lbf5620000 N N/A
EE649239 N/A 649000 N/A 23.926 in607.72 mm N/A 3.6875 in93.663 mm N/A 587000 lbf2610000 N N/A 1260000 lbf5620000 N N/A
EE649238 N/A 649000 N/A 23.9900 in609.346 mm N/A 3.6875 in93.663 mm N/A 587000 lbf2610000 N N/A 1260000 lbf5620000 N N/A
L879946 N/A N/A 23.9920 in609.397 mm N/A 3.625 in92.075 mm N/A 445000 lbf1980000 N N/A 1230000 lbf5470000 N N/A
EE649240 N/A 649000 N/A 24 in609.6 mm N/A 3.6875 in93.663 mm N/A 587000 lbf2610000 N N/A 1260000 lbf5620000 N N/A
EE649240H N/A 649000 N/A 24 in609.6 mm N/A 3.6875 in93.663 mm N/A 570000 lbf2540000 N N/A 1210000 lbf5390000 N N/A
EE743240 N/A 743000 N/A 24 in609.6 mm N/A 3.25 in82.55 mm N/A 467000 lbf2080000 N N/A 912000 lbf4060000 N N/A
L580049 N/A N/A 24 in609.6 mm N/A 3.1250 in79.375 mm N/A 453000 lbf2020000 N N/A 1040000 lbf4620000 N N/A
L879947 N/A N/A 24 in609.6 mm N/A 3.625 in92.075 mm N/A 445000 lbf1980000 N N/A 1230000 lbf5470000 N N/A
LL580049 N/A N/A 24.25 in615.95 mm N/A 1.625 in41.275 mm N/A 136000 lbf605000 N N/A 414000 lbf1840000 N N/A
80780 N/A N/A 25 in635 mm N/A 2.125 in53.975 mm N/A 147000 lbf654000 N N/A 412000 lbf1830000 N N/A
M281635 N/A M281600 N/A 25 in635 mm N/A 7.0000 in177.800 mm N/A 1320000 lbf5860000 N N/A 3120000 lbf13900000 N N/A
LM281049 N/A LM281000 N/A 25.4375 in646.113 mm N/A 5.5625 in141.288 mm N/A 1060000 lbf4700000 N N/A 2330000 lbf10400000 N N/A
L281146 N/A L281100 N/A 25.9935 in660.235 mm N/A 3.75 in95.25 mm N/A 570000 lbf2530000 N N/A 1340000 lbf5940000 N N/A
EE538260 N/A N/A 26 in660.4 mm N/A 5.0000 in127.000 mm N/A 800000 lbf3560000 N N/A 1750000 lbf7800000 N N/A
EE538261 N/A N/A 26 in660.4 mm N/A 5.0000 in127.000 mm N/A 800000 lbf3560000 N N/A 1750000 lbf7800000 N N/A
EE749260 N/A 749000 N/A 26 in660.4 mm N/A 3.3649 in85.468 mm N/A 504000 lbf2240000 N N/A 1040000 lbf4620000 N N/A
Unit of Measure
« 96 97 98 99 100