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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 HM266449DW  
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Part Number HM266449DW, 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
HM266400

Cone Part Number
HM266449DW

Design Units
Imperial

Cage Type
Pin-Type

C1 - Dynamic Radial Rating (1 million revolutions)1
553000 lbf
2460000 N

C0 - Static Radial Rating
1060000 lbf
4730000 N

Note
This part has a non-standard shoulder design. Please email customer CAD for shoulder details to ensure the proper design of mating components.
1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.


Dimensions

d - Cone Bore
15.1250 in
384.175 mm

B - Double Cone Width
7.6250 in
193.675 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.13 in
3.300 mm

da - Cone Frontface Backing Diameter
16.18 in
411 mm

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


Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)1
143000 lbf
638000 N

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)2
963000 lbf
4290000 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)3
250000 lbf
1110000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)4
81700 lbf
363000 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)
4760

G2 - Heat Generation Factor (Rib-Roller End)
301

Cg - Geometry Factor2
0.218
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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