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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TS (Tapered Single) > Tapered Roller Bearings - TS (Tapered Single) Imperial > Part Number 02474W - 02421  
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Part Number 02474W - 02421, Tapered Roller Bearings - TS (Tapered Single) Imperial


This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft.



Unit of Measure: Imperial Metric Both

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

Specifications

Series
02400

Cone Part Number
02474W

Cup Part Number
02421

Design Unit
Inch

Cage Material
Stamped Steel


Dimensions

d - Bore
1.1250 in
28.575 mm

D - Cup Outer Diameter
2.6875 in
68.263 mm

B - Cone Width
0.875 in
22.225 mm

C - Cup Width
0.6875 in
17.463 mm

T - Bearing Width
0.8751 in
22.228 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.03 in
0.800 mm

r - Cup Backface "To Clear" Radius2
0.030 in
0.76 mm

da - Cone Frontface Backing Diameter
1.42 in
36 mm

db - Cone Backface Backing Diameter
1.44 in
36.5 mm

Da - Cup Frontface Backing Diameter
2.52 in
63.00 mm

Db - Cup Backface Backing Diameter
2.32 in
58.93 mm

Ab - Cage-Cone Frontface Clearance
0.06 in
1.5 mm

Aa - Cage-Cone Backface Clearance
0.03 in
0.8 mm

a - Effective Center Location3
-0.2 in
-5.1 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
3720 lbf
16500 N

C1 - Dynamic Radial Rating (1 million revolutions)2
14300 lbf
63800 N

C0 - Static Radial Rating
15800 lbf
70200 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
2650 lbf
11800 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
1.4

e - ISO Factor2
0.42

Y - ISO Factor3
1.44

Cg - Geometry Factor4
0.0681
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 Geometry constant for Lubrication Life Adjustment Factor a3l.



 DOWNLOADS 

Tapered Roller Bearing Engineering Information
(PDF, 663KB)

Bearing Life Calculation Tool

Bearing Dimensional Tolerances



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