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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TDO (Tapered Double Outer) > Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial > Part Number EE221026 - 221576CD  
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Part Number EE221026 - 221576CD, Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial


The configuration of the TDO provides a wide effective bearing spread, making it ideal for applications in which overturning moments are a significant load component. TDO bearings can be used in fixed positions or allowed to float in the housing bore.



Unit of Measure: Imperial Metric Both

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

Specifications

Series
220000

Cone Part Number
EE221026

Cup Part Number
221576CD

Design Unit
Inch

Cage Material
Stamped Steel

Related Assembly Number(s)
EE221026-90086
EE221026-90087
EE221026-90088
EE221026-90089
EE221026-90092
EE221026-902A2
EE221026-902A4


Dimensions

d - Bore
10.2500 in
260.350 mm

D - Cup Outer Diameter
15.7500 in
400.050 mm

B - Cone Width
2.6563 in
67.470 mm

C - Double Cup Width
4.2500 in
107.950 mm

T - Bearing Width across Cones
6.1252 in
155.580 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.380 in
9.700 mm

r - Cup Backface "To Clear" Radius2
0.06 in
1.5 mm

db - Cone Backface Backing Diameter
11.65 in
296 mm

Da - Cup Frontface Backing Diameter
14.65 in
372.10 mm

Aa - Cage-Cone Backface Clearance
0.53 in
13.5 mm

a - Effective Center Location3
0.03 in
0.8 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 (One-Row, 90 million revolutions)1
55300 lbf
246000 N

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)2
372000 lbf
1650000 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)3
96300 lbf
429000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)4
37400 lbf
166000 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.
4 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
1.48

e - ISO Factor2
0.39

Y1 - ISO Factor3
1.71

Y2 - ISO Factor4
2.55

Cg - Geometry Factor5
0.150
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 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
5 Geometry constant for Lubrication Life Adjustment Factor a3l.


 MORE IMAGES 

·  Timken_TRB_2ROWASSY_TDO_438-90092-A

·  Timken_TRB_2ROWASSY_TDO_438-90092-A3

·  Timken_TRB_2ROWASSY_TDO_438-90092-T2



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Bearing Dimensional Tolerances

Tools and Guides for Engineers


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