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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Like the TS bearing design, the TSF design 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. TSF bearings have flanged cups to facilitate axial location and accurately align seals in through-bored housings.
Timken_TRB_1ROWASSY_TSF
TRB TSF Line Drawing
Unit of Measure
Items Timken_TRB_1ROWASSY_TSF
JL724348 - JL724314-B
Tapered Roller Bearings - TSF (Tapered Single with Flange) Metric 		Timken_TRB_1ROWASSY_TSF
JL730646 - JL730612-B
Tapered Roller Bearings - TSF (Tapered Single with Flange) Metric 		Timken_TRB_1ROWASSY_TSF
JLM722948 - JLM722912-B
Tapered Roller Bearings - TSF (Tapered Single with Flange) Metric 		Timken_TRB_1ROWASSY_TSF
JM624649 - JM624610-B
Tapered Roller Bearings - TSF (Tapered Single with Flange) Metric 		Timken_TRB_1ROWASSY_TSF
JM716649 - JM716610-B
Tapered Roller Bearings - TSF (Tapered Single with Flange) Metric
Series N/A L724300 N/A L730600 N/A LM722900 N/A M624600 N/A M716600
Cone Part Number N/A JL724348 N/A JL730646 N/A JLM722948 N/A JM624649 N/A JM716649
Cup Part Number N/A JL724314-B N/A JL730612-B N/A JLM722912-B N/A JM624610-B N/A JM716610-B
d - Bore N/A 120 mm4.7244 in N/A 150 mm5.9055 in N/A 115 mm4.5276 in N/A 120 mm4.7244 in N/A 85 mm3.3465 in
D - Cup Outer Diameter N/A 170 mm6.6929 in N/A 205 mm8.0709 in N/A 165 mm6.4961 in N/A 180 mm7.0866 in N/A 130 mm5.1181 in
D1 - Flange Outer Diameter N/A 177.000 mm6.9685 in N/A 210.000 mm8.2677 in N/A 172.000 mm6.7717 in N/A 188.000 mm7.4016 in N/A 135.500 mm5.3346 in
B - Cone Width N/A 25.400 mm1.0000 in N/A 28.575 mm1.1250 in N/A 27.000 mm1.0630 in N/A 36 mm1.4173 in N/A 29.000 mm1.1417 in
C - Cup Width N/A 19.050 mm0.7500 in N/A 21.438 mm0.8440 in N/A 21.000 mm0.8268 in N/A 26.000 mm1.0236 in N/A 24.000 mm0.9449 in
Design Unit N/A Metric
C1 - Cup Flange Width N/A 5.000 mm0.1969 in N/A 4.862 mm0.1914 in N/A 5.500 mm0.2165 in N/A 6.580 mm0.2591 in N/A 5.558 mm0.2188 in
T1 - Bearing Width to Flange N/A 11.350 mm4.468 in N/A 12.000 mm4.724 in N/A 12.500 mm4.921 in N/A 16.350 mm6.437 in N/A 11.557 mm4.550 in
R - Cone Backface "To Clear" Radius1 N/A 3.300 mm0.13 in N/A 3.300 mm0.13 in N/A 3.300 mm0.13 in N/A 3.560 mm0.14 in N/A 3.050 mm0.12 in
r - Cup Backface "To Clear" Radius2 N/A 3.30 mm0.130 in N/A 3.30 mm0.130 in N/A 3 mm0.12 in N/A 1.5 mm0.06 in N/A 2.5 mm0.1 in
da - Cone Frontface Backing Diameter N/A 127 mm5 in N/A 158 mm6.22 in N/A 121 mm4.76 in N/A 128 mm5.04 in N/A 92 mm3.62 in
db - Cone Backface Backing Diameter N/A 132 mm5.2 in N/A 164 mm6.46 in N/A 127 mm5 in N/A 135 mm5.31 in N/A 98 mm3.86 in
Da - Cup Frontface Backing Diameter N/A 164.59 mm6.48 in N/A 200.91 mm7.91 in N/A 160.02 mm6.34 in N/A 175.01 mm6.93 in N/A 128.02 mm5.04 in
Ab - Cage-Cone Frontface Clearance N/A 2 mm0.08 in N/A 2 mm0.08 in N/A 3 mm0.12 in N/A 3.3 mm0.13 in N/A 3 mm0.12 in
Aa - Cage-Cone Backface Clearance N/A 2 mm0.08 in N/A 2 mm0.08 in N/A 1.8 mm0.07 in N/A 3.3 mm0.13 in N/A 1.8 mm0.07 in
a - Effective Center Location3 N/A 7.9 mm0.31 in N/A 11.4 mm0.45 in N/A 5.6 mm0.22 in N/A 0 mm0 in N/A -0.3 mm-0.01 in
C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 37600 N8450 lbf N/A 50200 N11300 lbf N/A 41400 N9310 lbf N/A 64000 N14400 lbf N/A 41800 N9400 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 145000 N32600 lbf N/A 194000 N43500 lbf N/A 160000 N35900 lbf N/A 247000 N55500 lbf N/A 161000 N36300 lbf
C0 - Static Radial Rating N/A 231000 N52000 lbf N/A 339000 N76100 lbf N/A 245000 N55100 lbf N/A 377000 N84700 lbf N/A 245000 N55100 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 29500 N6640 lbf N/A 39400 N8860 lbf N/A 32500 N7310 lbf N/A 45300 N10200 lbf N/A 31800 N7150 lbf
K - Factor7 N/A 1.27 N/A 1.27 N/A 1.27 N/A 1.41 N/A 1.31
e - ISO Factor8 N/A 0.46 N/A 0.46 N/A 0.46 N/A 0.41 N/A 0.44
Y - ISO Factor9 N/A 1.31 N/A 1.31 N/A 1.31 N/A 1.45 N/A 1.35
G1 - Heat Generation Factor (Roller-Raceway) N/A 170 N/A 295 N/A 161 N/A 227 N/A 117.1
G2 - Heat Generation Factor (Rib-Roller End) N/A 70.6 N/A 103 N/A 57.2 N/A 61.6 N/A 38.4
Cg - Geometry Factor10 N/A 0.147 N/A 0.176 N/A 0.145 N/A 0.108 N/A 0.13
Bearing Weight N/A 1.7 Kg3.7 lb N/A 2.7 Kg5.9 lb N/A 1.80 Kg4 lb N/A 3 Kg6.7 lb N/A 1.4 Kg3.10 lb
Cage Material N/A Stamped Steel
Full Timken Part Number N/A N/A N/A JLM722948-90B01 N/A JM624649-90B01 N/A JM716649-90B03
  • 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.