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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TSF (Tapered Single with Flange) > Tapered Roller Bearings - TSF (Tapered Single with Flange) Imperial > Part Number EE203137 - 203190-B  
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Part Number EE203137 - 203190-B, Tapered Roller Bearings - TSF (Tapered Single with Flange) Imperial


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.



Unit of Measure: Imperial Metric Both

Specifications  · Dimensions  · Abutment and Fillet Dimensions  · Basic Load Ratings  · Factors

Specifications

Series
203000

Cone Part Number
EE203137

Cup Part Number
203190-B

Design Unit
Inch

Cage Material
Stamped Steel


Dimensions

d - Bore
13.6250 in
346.075 mm

D - Cup Outer Diameter
19.0000 in
482.600 mm

D1 - Flange Outer Diameter
19.5586 in
496.788 mm

B - Cone Width
2.5 in
63.5 mm

C - Cup Width
1.7500 in
44.450 mm

C1 - Cup Flange Width
0.5625 in
14.288 mm

T1 - Bearing Width to Flange
1.4375 in
36.512 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.500 in
12.700 mm

r - Cup Backface "To Clear" Radius2
0.270 in
6.90 mm

da - Cone Frontface Backing Diameter
14.41 in
366 mm

db - Cone Backface Backing Diameter
15.28 in
388.0 mm

Da - Cup Frontface Backing Diameter
18.39 in
467.10 mm

Ab - Cage-Cone Frontface Clearance
0.29 in
7.4 mm

Aa - Cage-Cone Backface Clearance
0.57 in
14.5 mm

a - Effective Center Location3
0.64 in
16.3 mm
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.


Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)1
59900 lbf
266000 N

C1 - Dynamic Radial Rating (1 million revolutions)2
231000 lbf
1030000 N

C0 - Static Radial Rating
398000 lbf
1770000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
42700 lbf
190000 N
1 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
2 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
3 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.


Factors

K - Factor1
1.4

e - ISO Factor2
0.42

Y - ISO Factor3
1.44

G1 - Heat Generation Factor (Roller-Raceway)
2140

G2 - Heat Generation Factor (Rib-Roller End)
336

Cg - Geometry Factor4
0.178
1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
2 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
3 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
4 Geometry constant for Lubrication Life Adjustment Factor a3l.


 MORE IMAGES 

·  Timken_TRB_1ROWASSY_TSF_32312BM-90KM2-S

·  Timken_TRB_1ROWASSY_TSF_32312BM-90KM2-T



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