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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Timken_TRB_1ROWASSY_TSF
TRB TSF Line Drawing
Unit of Measure
Items Timken_TRB_1ROWASSY_TSF
02474 - 02420-B
Tapered Roller Bearings - TSF (Tapered Single with Flange) Imperial 		Timken_TRB_1ROWASSY_TSF
02474A - 02420-B
Tapered Roller Bearings - TSF (Tapered Single with Flange) Imperial 		Timken_TRB_1ROWASSY_TSF
02475 - 02420-B
Tapered Roller Bearings - TSF (Tapered Single with Flange) Imperial 		Timken_TRB_1ROWASSY_TSF
02476 - 02420-B
Tapered Roller Bearings - TSF (Tapered Single with Flange) Imperial 		Timken_TRB_1ROWASSY_TSF
02473 - 02420-B
Tapered Roller Bearings - TSF (Tapered Single with Flange) Imperial
Series N/A 2400
Cone Part Number N/A 02474 N/A 02474A N/A 02475 N/A 02476 N/A 02473
Cup Part Number N/A 02420-B
d - Bore N/A 1 1/8 in28.575 mm N/A 1.1806 in29.987 mm N/A 1 1/4 in31.750 mm N/A 1 1/4 in31.750 mm N/A 1 in25.400 mm
D - Cup Outer Diameter N/A 2.6875 in68.263 mm
D1 - Flange Outer Diameter N/A 2.8397 in72.128 mm
B - Cone Width N/A 0.875 in22.225 mm
C - Cup Width N/A 0.6875 in17.463 mm
Design Unit N/A Inch
C1 - Cup Flange Width N/A 0.1562 in3.967 mm
T1 - Bearing Width to Flange N/A 0.3437 in8.730 mm
R - Cone Backface "To Clear" Radius1 N/A 0.03 in0.800 mm N/A 0.03 in0.800 mm N/A 0.14 in3.600 mm N/A 0.03 in0.800 mm N/A 0.03 in0.760 mm
r - Cup Backface "To Clear" Radius2 N/A 0.06 in1.5 mm
da - Cone Frontface Backing Diameter N/A 1.42 in36 mm N/A 1.52 in38.5 mm N/A 1.52 in38.5 mm N/A 1.52 in38.5 mm N/A 1.32 in33.5 mm
db - Cone Backface Backing Diameter N/A 1.44 in36.5 mm N/A 1.56 in39.5 mm N/A 1.75 in44.5 mm N/A 1.54 in39 mm N/A 1.36 in34.5 mm
Da - Cup Frontface Backing Diameter N/A 2.60 in65.02 mm
Ab - Cage-Cone Frontface Clearance N/A 0.06 in1.5 mm
Aa - Cage-Cone Backface Clearance N/A 0.03 in0.8 mm
a - Effective Center Location3 N/A -0.2 in-5.1 mm
C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 3720 lbf16500 N
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 14300 lbf63800 N
C0 - Static Radial Rating N/A 15800 lbf70200 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 2650 lbf11800 N
K - Factor7 N/A 1.4
e - ISO Factor8 N/A 0.42
Y - ISO Factor9 N/A 1.44
G1 - Heat Generation Factor (Roller-Raceway) N/A 17.5
G2 - Heat Generation Factor (Rib-Roller End) N/A 8.48 N/A 8.48 N/A 8.48 N/A 8.48 N/A 8.5
Cg - Geometry Factor10 N/A 0.0681
Bearing Weight N/A 1.5 lb0.7 Kg N/A 1.3 lb0.6 Kg N/A 1.3 lb0.6 Kg N/A 1.2 lb0.6 Kg N/A 1.3 lb0.6 Kg
Cage Material N/A Stamped Steel
Full Timken Part Number N/A
  • 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 Geometry constant for Lubrication Life Adjustment Factor a3l.