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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 LM287649D - LM287610  
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Part Number LM287649D - LM287610, 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
LM287600

Cone Part Number
LM287649D

Cup Part Number
LM287610

Design Unit
Inch

Cage Material
Pin-Type


Dimensions

d - Bore
36.9375 in
938.213 mm

D - Cup Outer Diameter
50.0000 in
1270.000 mm

B - Double Cone Width
15.7500 in
400.050 mm

C - Cup Width
6.6875 in
169.863 mm

T - Bearing Width across Cups
15.7499 in
400.047 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.190 in
4.800 mm

r - Cup Backface "To Clear" Radius2
0.5 in
12.70 mm

da - Cone Frontface Backing Diameter
38.98 in
990 mm

Db - Cup Backface Backing Diameter
46.85 in
1190.00 mm

Ab - Cage-Cone Frontface Clearance
0.56 in
14.2 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.


Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)1
532000 lbf
2360000 N

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)2
3570000 lbf
15900000 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)3
926000 lbf
4120000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)4
303000 lbf
1350000 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)
37200

G2 - Heat Generation Factor (Rib-Roller End)
1610

Cg - Geometry Factor5
0.428
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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