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
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Part Number

Series

Bore (d)

Inner Ring Width (B)

Dynamic Radial Load Rating - 1M Revs (C1) 

Static Radial Load Rating (C0)

CAD

HM252349NA N/A N/A 10.25 in260.35 mm N/A 3.40625 in86.519 mm N/A N/A N/A
HM252348NA N/A N/A 10.25 in260.35 mm N/A 3.40625 in86.519 mm N/A N/A N/A
NA221027SW N/A N/A 10.25 in260.35 mm N/A 2.875 in73.025 mm N/A N/A N/A
LM451344 N/A LM451300 N/A 10.3533 in262.974 mm N/A 2.4409 in61.999 mm N/A 143000 lbf637000 N N/A 296000 lbf1310000 N N/A
38880 N/A N/A 10.375 in263.525 mm N/A 1.125 in28.575 mm N/A 49800 lbf221000 N N/A 125000 lbf554000 N N/A
K38880 N/A N/A 10.375 in263.525 mm N/A 1.125 in28.575 mm N/A 49800 lbf221000 N N/A 125000 lbf554000 N N/A
LM451345 N/A LM451300 N/A 10.375 in263.525 mm N/A 2.25 in57.15 mm N/A 158000 lbf701000 N N/A 339000 lbf1510000 N N/A
LM451347 N/A LM451300 N/A 10.4321 in264.975 mm N/A 2.4409 in61.999 mm N/A 143000 lbf637000 N N/A 296000 lbf1310000 N N/A
38884 N/A N/A 10.4945 in266.560 mm N/A 1.3177 in33.470 mm N/A 48100 lbf214000 N N/A 118000 lbf527000 N N/A
LL450748A N/A N/A 10.4945 in266.560 mm N/A 1.3177 in33.470 mm N/A 48800 lbf217000 N N/A 114000 lbf507000 N N/A
29880 N/A 29800 N/A 10.5 in266.7 mm N/A 0.875 in22.225 mm N/A 33900 lbf151000 N N/A 87800 lbf391000 N N/A
38885 N/A N/A 10.5 in266.7 mm N/A 1.125 in28.575 mm N/A 49800 lbf221000 N N/A 125000 lbf554000 N N/A
38886 N/A N/A 10.5 in266.7 mm N/A 1.3177 in33.470 mm N/A 50900 lbf227000 N N/A 118000 lbf527000 N N/A
EE275105 N/A 275000 N/A 10.5 in266.7 mm N/A 2.75 in69.85 mm N/A 228000 lbf1010000 N N/A 359000 lbf1600000 N N/A
H852849 N/A N/A 10.5 in266.7 mm N/A 4.625 in117.475 mm N/A 410000 lbf1820000 N N/A 791000 lbf3520000 N N/A
LL450749AA N/A N/A 10.5 in266.7 mm N/A 1.3401 in34.039 mm N/A 51700 lbf230000 N N/A 114000 lbf507000 N N/A
LM251649NW N/A LM251600 N/A 10.5 in266.7 mm N/A 2.125 in53.975 mm N/A 127000 lbf566000 N N/A 269000 lbf1200000 N N/A
LM451349 N/A LM451300 N/A 10.5 in266.7 mm N/A 2.25 in57.15 mm N/A 167000 lbf743000 N N/A 339000 lbf1510000 N N/A
LM451349A N/A LM451300 N/A 10.5 in266.7 mm N/A 2.25 in57.15 mm N/A 158000 lbf701000 N N/A 339000 lbf1510000 N N/A
LM451349AX N/A LM451300 N/A 10.5 in266.7 mm N/A 2.25 in57.15 mm N/A 158000 lbf701000 N N/A 339000 lbf1510000 N N/A
LM451349AXV N/A LM451300 N/A 10.5 in266.7 mm N/A 2.25 in57.15 mm N/A 158000 lbf701000 N N/A 339000 lbf1510000 N N/A
LM451349V N/A LM451300 N/A 10.5 in266.7 mm N/A 2.25 in57.15 mm N/A 152000 lbf675000 N N/A 296000 lbf1310000 N N/A
LM451349W N/A LM451300 N/A 10.5 in266.7 mm N/A 2.25 in57.15 mm N/A 158000 lbf701000 N N/A 339000 lbf1510000 N N/A
DX991555 N/A N/A 10.625 in269.875 mm N/A 2.9375 in74.613 mm N/A 318000 lbf1410000 N N/A 455000 lbf2030000 N N/A
M252349 N/A M252300 N/A 10.625 in269.875 mm N/A 2.9375 in74.613 mm N/A 258000 lbf1150000 N N/A 455000 lbf2030000 N N/A
Unit of Measure
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