All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - Double Cones > Tapered Roller Bearings - Double Tapered Cones - Imperial > Part Number 496D  

Part Number 496D, Tapered Roller Bearings - Double Tapered Cones - Imperial

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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.




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

Specifications

Series
495

Cone Part Number
496D

Design Units
Imperial

Cage Type
Stamped Steel

C1 - Dynamic Radial Rating (1 million revolutions)1
34700 lbf
154000 N

C0 - Static Radial Rating
48600 lbf
216000 N
1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.


Dimensions

d - Cone Bore
3 3/16 in
80.963 mm

B - Double Cone Width
2.3440 in
59.538 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.06 in
1.5 mm

da - Cone Frontface Backing Diameter
3.58 in
91 mm

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


Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)1
9000 lbf
40000 N

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)2
60500 lbf
269000 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)3
15700 lbf
69700 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)4
6850 lbf
30500 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
1.31

G1 - Heat Generation Factor (Roller-Raceway)
105

G2 - Heat Generation Factor (Rib-Roller End)
29.3

Cg - Geometry Factor2
0.125
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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