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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 EE243190 - 243250-B  
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Part Number EE243190 - 243250-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
243000

Cone Part Number
EE243190

Cup Part Number
243250-B

Design Unit
Inch

Cage Material
Stamped Steel

Related Assembly Number(s)
EE243190-90095


Dimensions

d - Bore
19.0000 in
482.600 mm

D - Cup Outer Diameter
24.9950 in
634.873 mm

D1 - Flange Outer Diameter
25.5590 in
649.199 mm

B - Cone Width
3.1875 in
80.963 mm

C - Cup Width
2.5 in
63.5 mm

C1 - Cup Flange Width
0.5625 in
14.288 mm

T1 - Bearing Width to Flange
1.2500 in
31.750 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.25 in
6.4 mm

r - Cup Backface "To Clear" Radius2
0.130 in
3.30 mm

da - Cone Frontface Backing Diameter
20.08 in
510 mm

db - Cone Backface Backing Diameter
20.31 in
516 mm

Da - Cup Frontface Backing Diameter
24.34 in
618.20 mm

Ab - Cage-Cone Frontface Clearance
0.17 in
4.3 mm

Aa - Cage-Cone Backface Clearance
0.27 in
6.9 mm

a - Effective Center Location3
0.75 in
19.1 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
380000 N

C1 - Dynamic Radial Rating (1 million revolutions)2
330000 lbf
1470000 N

C0 - Static Radial Rating
822000 lbf
3660000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
50200 lbf
223000 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
1.7

e - ISO Factor2
0.34

Y - ISO Factor3
1.75

G1 - Heat Generation Factor (Roller-Raceway)
6057.3

G2 - Heat Generation Factor (Rib-Roller End)
726.6

Cg - Geometry Factor4
0.235
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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