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Part Number 33010, Tapered Roller Bearings - TS (Tapered Single) Metric


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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.




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

Specifications

Series

33010

Cone Part Number

X33010

Cup Part Number

Y33010

Design Unit

Metric

Cage Material

Stamped Steel

Related Assembly Number(s)

33010-90KA1


Dimensions

d - Bore

50 mm
1.9685
in

D - Cup Outer Diameter

80 mm
3.1496
in

B - Cone Width

24.000 mm
0.9449
in

C - Cup Width

19.000 mm
0.7480
in

T - Bearing Width

24.000 mm
0.9449
in


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1

1.020 mm
0.040
in

r - Cup Backface "To Clear" Radius2

1.02 mm
0.04
in

da - Cone Frontface Backing Diameter

55 mm
2.17
in

db - Cone Backface Backing Diameter

57 mm
2.24
in

Da - Cup Frontface Backing Diameter

77.00 mm
3.05
in

Db - Cup Backface Backing Diameter

72.90 mm
2.87
in

Ab - Cage-Cone Frontface Clearance

2.5 mm
0.1
in

Aa - Cage-Cone Backface Clearance

0.8 mm
0.03
in

a - Effective Center Location3

-6.6 mm
-0.26
in
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

24800 N
5570
lbf

C1 - Dynamic Radial Rating (1 million revolutions)2

95500 N
21500
lbf

C0 - Static Radial Rating

112000 N
25300
lbf

Ca90 - Dynamic Thrust Rating (90 million revolutions)3

13400 N
3020
lbf
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

1.85

e - ISO Factor2

0.32

Y - ISO Factor3

1.9

G1 - Heat Generation Factor (Roller-Raceway)

42.3

G2 - Heat Generation Factor (Rib-Roller End)

28

Cg - Geometry Factor4

0.0836
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