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-TSL-top-angle-view
Unit of Measure
Items timken-TSL-top-angle-view
LM11949 - LM11910 (LM11900EA)
Tapered Roller Bearings - TSL (DUO-FACE® Plus Seal) Imperial 		timken-TSL-top-angle-view
LM11949 - LM11910 (LM11900LA)
Tapered Roller Bearings - TSL (DUO-FACE® Plus Seal) Imperial 		timken-TSL-top-angle-view
M12649 - M12610 (M12600LA)
Tapered Roller Bearings - TSL (DUO-FACE® Plus Seal) Imperial 		timken-TSL-top-angle-view
07100 - 07196 (07000LA)
Tapered Roller Bearings - TSL (DUO-FACE® Plus Seal) Imperial 		timken-TSL-top-angle-view
L44642 - L44610 (L44600LC)
Tapered Roller Bearings - TSL (DUO-FACE® Plus Seal) Imperial
Series N/A LM11900 N/A LM11900 N/A M12600 N/A 07000 N/A L44600
Cone Part Number N/A LM11949 N/A LM11949 N/A M12649 N/A 07100 N/A L44642
Cup Part Number N/A LM11910 N/A LM11910 N/A M12610 N/A 07196 N/A L44610
Seal Part Number N/A LM11900EA N/A LM11900LA N/A M12600LA N/A 07000LA N/A L44600LC
d - Bore N/A 3/4 in19.05 mm N/A 3/4 in19.05 mm N/A 0.8437 in21.430 mm N/A 1 in25.400 mm N/A 1 in25.400 mm
D - Cup Outer Diameter N/A 1.7810 in45.237 mm N/A 1.7810 in45.237 mm N/A 1.9687 in50.005 mm N/A 1.9687 in50.005 mm N/A 1.9800 in50.292 mm
B - Cone Width N/A 0.6550 in16.637 mm N/A 0.6550 in16.637 mm N/A 0.7200 in18.288 mm N/A 0.5614 in14.260 mm N/A 0.5800 in14.732 mm
C - Cup Width N/A 0.4750 in12.065 mm N/A 0.4750 in12.065 mm N/A 0.5500 in13.970 mm N/A 0.3750 in9.525 mm N/A 0.4200 in10.668 mm
Design Unit N/A Inch
T - Bearing Width N/A 0.6100 in15.494 mm N/A 0.6100 in16.281 mm N/A 0.69 in17.526 mm N/A 0.5313 in13.495 mm N/A 0.5600 in14.224 mm
T1 - Total Width N/A 0.641 in16.281 mm N/A 0.685 in17.4 mm N/A 0.765 in19.43 mm N/A 0.606 in15.4 mm N/A 0.588 in14.935 mm
R - Cone Backface "To Clear" Radius1 N/A 0.050 in1.270 mm N/A 0.050 in1.270 mm N/A 0.050 in1.270 mm N/A 0.040 in1 mm N/A 0.14 in3.560 mm
r - Cup Backface "To Clear" Radius2 N/A 0.050 in1.27 mm N/A 0.050 in1.27 mm N/A 0.050 in1.27 mm N/A 0.04 in1.02 mm N/A 0.050 in1.27 mm
da - Cone Frontface Backing Diameter N/A 0.93 in23.5 mm N/A 0.93 in23.5 mm N/A 1.08 in27.5 mm N/A 1.16 in29.5 mm N/A 1.16 in29.5 mm
db - Cone Backface Backing Diameter N/A 0.98 in25 mm N/A 0.98 in25 mm N/A 1.16 in29.5 mm N/A 1.2 in30.5 mm N/A 1.42 in36 mm
Da - Cup Frontface Backing Diameter N/A 1.65 in41.90 mm N/A 1.65 in41.90 mm N/A 1.83 in46.48 mm N/A 1.87 in47.50 mm N/A 1.87 in47.50 mm
Db - Cup Backface Backing Diameter N/A 1.56 in39.62 mm N/A 1.56 in39.62 mm N/A 1.73 in43.94 mm N/A 1.75 in44.45 mm N/A 1.75 in44.45 mm
Ab - Cage-Cone Frontface Clearance N/A 0.05 in1.3 mm N/A 0.05 in1.3 mm N/A 0.07 in1.8 mm N/A 0.08 in2 mm N/A 0.05 in1.3 mm
Aa - Cage-Cone Backface Clearance N/A -0.01 in-0.3 mm N/A -0.01 in-0.3 mm N/A -0.01 in-0.3 mm N/A 0 in0 mm N/A 0.02 in0.5 mm
a - Effective Center Location3 N/A -0.22 in-5.6 mm N/A -0.22 in-5.6 mm N/A -0.25 in-6.4 mm N/A -0.11 in-2.8 mm N/A -0.13 in-3.3 mm
C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 2280 lbf10100 N N/A 2280 lbf10100 N N/A 3040 lbf13500 N N/A 1700 lbf7550 N N/A 2080 lbf9230 N
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 8800 lbf39100 N N/A 8800 lbf39100 N N/A 11700 lbf52200 N N/A 6540 lbf29100 N N/A 8010 lbf35600 N
C0 - Static Radial Rating N/A 7200 lbf32000 N N/A 7200 lbf32000 N N/A 9780 lbf43500 N N/A 6650 lbf29600 N N/A 7400 lbf32900 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 1170 lbf5220 N N/A 1170 lbf5220 N N/A 1450 lbf6440 N N/A 1170 lbf5190 N N/A 1330 lbf5910 N
K - Factor7 N/A 1.94 N/A 1.94 N/A 2.1 N/A 1.45 N/A 1.56
e - ISO Factor8 N/A 0.3 N/A 0.3 N/A 0.28 N/A 0.4 N/A 0.37
Y - ISO Factor9 N/A 2 N/A 2 N/A 2.16 N/A 1.49 N/A 1.6
Y1 - ISO Factor10 N/A 2.25 N/A 2.25 N/A 2.43 N/A 1.68 N/A 1.8
Y2 - ISO Factor11 N/A 3.34 N/A 3.34 N/A 3.61 N/A 2.5 N/A 2.69
G1 - Heat Generation Factor (Roller-Raceway) N/A 6.6 N/A 6.6 N/A 9.1 N/A 7.6 N/A 8.9
G2 - Heat Generation Factor (Rib-Roller End) N/A 5.49 N/A 5.49 N/A 5.63 N/A 7.1 N/A 8.9
Cg - Geometry Factor12 N/A 0.0441 N/A 0.0441 N/A 0.0479 N/A 0.0509 N/A 0.0526
Bearing Weight N/A 0.280 lb0.12 Kg N/A 0.280 lb0.12 Kg N/A 0.370 lb0.17 Kg N/A 0.25 lb0.11 Kg N/A 0.27 lb0.13 Kg
  • 1 These maximum fillet radii will be cleared by the bearing corners.
  • 2 These maximum fillet radii will be cleared by the bearing corners.
  • 3 Negative value indicates effective center inside cone backface.
  • 4 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 5 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 6 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.
  • 7 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 8 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 9 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 10 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 11 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 12 Geometry constant for Lubrication Life Adjustment Factor a3l.