Montage of Timken Bearing Products 
Search Catalog
        
 All Product Types    Tapered Roller Bearings - TDO (Tapered Double Outer) Imperial
View Cart View RFQs Express Ordering  | Shipping 
 | Tax 
 | Terms
 Shopping Cart 0 Items
 Request for Quote 0 Items
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 EE450551 - 451215CD  
Download PDF Download PDF     Printable Page     Email Email This Page     Save To Favorites Save To Favorites
Add To Cart Request Quote

Part Number EE450551 - 451215CD, 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
450000

Cone Part Number
EE450551

Cup Part Number
451215CD

Design Unit
Inch

Cage Material
Stamped Steel

Related Assembly Number(s)
EE450551-902A1


Dimensions

d - Bore
5 1/2 in
139.700 mm

D - Cup Outer Diameter
12.1250 in
307.975 mm

B - Cone Width
3.6875 in
93.663 mm

C - Double Cup Width
5.7500 in
146.050 mm

T - Bearing Width across Cones
7.8749 in
200.022 mm


Abutment and Fillet Dimensions

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

r - Cup Backface "To Clear" Radius2
0.090 in
2.3 mm

db - Cone Backface Backing Diameter
7.09 in
180 mm

Da - Cup Frontface Backing Diameter
10.83 in
274.83 mm

Aa - Cage-Cone Backface Clearance
0.68 in
17.3 mm

a - Effective Center Location3
-1.11 in
-28.2 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
61400 lbf
273000 N

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)2
412000 lbf
1830000 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)3
107000 lbf
475000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)4
34300 lbf
152000 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
1.79

e - ISO Factor2
0.33

Y1 - ISO Factor3
2.07

Y2 - ISO Factor4
3.08

Cg - Geometry Factor5
0.118
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



 DOWNLOADS 

Bearing Life Calculation Tool

Bearing Dimensional Tolerances

Tools and Guides for Engineers


Add To Cart Request Quote
<