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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - Double Cones > Tapered Roller Bearings - Double Tapered Cones - Imperial > Part Number LM287649D  
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Part Number LM287649D, Tapered Roller Bearings - Double Tapered Cones - 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

Specifications

Series
LM287600

Cone Part Number
LM287649D

Design Units
Imperial

Cage Type
Pin-Type

C1 - Dynamic Radial Rating (1 million revolutions)1
2050000 lbf
9120000 N

C0 - Static Radial Rating
5300000 lbf
23600000 N
1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.


Dimensions

d - Cone Bore
36.9375 in
938.213 mm

B - Double Cone Width
15.7500 in
400.050 mm


Abutment and Fillet Dimensions

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

da - Cone Frontface Backing Diameter
38.98 in
990 mm

Ab - Cage-Cone Frontface Clearance
0.56 in
14.2 mm
1 These maximum fillet radii will be cleared by the bearing corners.


Basic Load Ratings

C90 - Dynamic Radial Rating (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

G1 - Heat Generation Factor (Roller-Raceway)
37200

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

Cg - Geometry Factor2
0.428
1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
2 Geometry constant for Lubrication Life Adjustment Factor a3l.



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