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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TDI (Tapered Double Inner) > Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial > Part Number H244849D - H244810XX  
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Part Number H244849D - H244810XX, Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial



TDI bearings have a one-piece double inner race and two single outer races and are typically supplied complete with an outer race spacer as a pre-set assembly. The bearing can be used at fixed positions on rotation shaft applications. For rotating housing application it can be used to float on the stationary shaft.



Unit of Measure: Imperial Metric Both

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

Specifications

Series

H244800

Cone Part Number

H244849D

Cup Part Number

H244810XX

Design Unit

Inch

Cage Material

Stamped Steel


Dimensions

d - Bore

8.6250 in
219.075
mm

D - Cup Outer Diameter

14.125 in
358.775
mm

B - Double Cone Width

7.8750 in
200.025
mm

C - Cup Width

3.3750 in
85.725
mm

T - Bearing Width across Cups

7.7499 in
196.847
mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1

0.06 in
1.5
mm

r - Cup Backface "To Clear" Radius2

0.250 in
6.4
mm

da - Cone Frontface Backing Diameter

9.53 in
242
mm

Db - Cup Backface Backing Diameter

12.72 in
323.10
mm

Ab - Cage-Cone Frontface Clearance

0.14 in
3.6
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.


Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)1

84200 lbf
375000
N

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)2

566000 lbf
2520000
N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)3

147000 lbf
652000
N

Ca90 - Dynamic Thrust Rating (90 million revolutions)4

47900 lbf
213000
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

1.76

e - ISO Factor2

0.33

Y1 - ISO Factor3

2.03

Y2 - ISO Factor4

3.02

G1 - Heat Generation Factor (Roller-Raceway)

1630

G2 - Heat Generation Factor (Rib-Roller End)

150

Cg - Geometry Factor5

0.154
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.


Spacer

Note

Spacer shows standard nominal .01 radii, actual bearing may vary


 MORE IMAGES 

·  Timken_TRB_2ROWASSY_TDI_39585D-90015-A

·  Timken_TRB_2ROWASSY_TDI_39585D-90015-A3

·  Timken_TRB_2ROWASSY_TDI_39585D-90015-T2



 DOWNLOADS 

Bearing Life Calculation Tool

Bearing Dimensional Tolerances

Tools and Guides for Engineers

TRB TDI Line Drawing
(JPG, 14KB)


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