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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TSL (DUO-FACE® Plus Seal) Imperial > Part Number 479 - 472A (K668182)  
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Part Number 479 - 472A (K668182), Tapered Roller Bearings - TSL (DUO-FACE® Plus Seal) Imperial


Tapered Roller Bearings - TSL (DUO-FACE® Plus Seal) Imperial



Unit of Measure: Imperial Metric Both

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

Specifications

Cone Part Number
479

Cup Part Number
472A

Design Unit
Inch

Cage Material
Stamped Steel


Dimensions

d - Bore
2.6250 in
66.675 mm

D - Cup Outer Diameter
4.7244 in
120 mm

B - Cone Width
1.1420 in
29.007 mm

C - Cup Width
0.9230 in
23.444 mm

T - Bearing Width
1.1418 in
29.002 mm

T1 - Total Width
1.2720 in
32.418 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.09 in
2.300 mm

r - Cup Backface "To Clear" Radius2
0.130 in
3.30 mm

da - Cone Frontface Backing Diameter
2.91 in
74 mm

db - Cone Backface Backing Diameter
3.07 in
78 mm

Db - Cup Backface Backing Diameter
4.17 in
105.92 mm

a - Effective Center Location3
-0.16 in
-4.1 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.
3 Negative value indicates effective center inside cone backface.


Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)1
8360 lbf
37200 N

C1 - Dynamic Radial Rating (1 million revolutions)2
32200 lbf
143000 N

C0 - Static Radial Rating
41900 lbf
186000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
5500 lbf
24500 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.


Factors

K - Factor1
1.52

e - ISO Factor2
0.38

Y - ISO Factor3
1.56

Y1 - ISO Factor4
1.75

Y2 - ISO Factor5
2.61

G1 - Heat Generation Factor (Roller-Raceway)
77.2

G2 - Heat Generation Factor (Rib-Roller End)
23

Cg - Geometry Factor6
0.108
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 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
6 Geometry constant for Lubrication Life Adjustment Factor a3l.


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 DOWNLOADS 

Tapered Roller Bearing Engineering Information
(PDF, 663KB)

Bearing Life Calculation Tool

Bearing Dimensional Tolerances



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