All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TS (Tapered Single) > Tapered Roller Bearings - TS (Tapered Single) Metric > Part Number X33115 - Y33115  

Part Number X33115 - Y33115, 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

33115

Cone Part Number

X33115M

Cup Part Number

Y33115M

Design Unit

Metric

Cage Material

Stamped Steel

Related Assembly Number(s)

33115-9X026
33115-9X064

33115-9X245


Dimensions

d - Bore

75 mm
2.9528
in

D - Cup Outer Diameter

125 mm
4.9213
in

B - Cone Width

37.000 mm
1.4567
in

C - Cup Width

29.000 mm
1.1417
in

T - Bearing Width

37.000 mm
1.4567
in


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1

2.030 mm
0.08
in

r - Cup Backface "To Clear" Radius2

1.52 mm
0.06
in

da - Cone Frontface Backing Diameter

83 mm
3.27
in

db - Cone Backface Backing Diameter

88 mm
3.46
in

Da - Cup Frontface Backing Diameter

119.90 mm
4.75
in

Db - Cup Backface Backing Diameter

112.01 mm
4.41
in

Ab - Cage-Cone Frontface Clearance

3 mm
0.12
in

Aa - Cage-Cone Backface Clearance

2.3 mm
0.09
in

a - Effective Center Location3

-7.4 mm
-0.29
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

53000 N
11900
lbf

C1 - Dynamic Radial Rating (1 million revolutions)2

205000 N
46000
lbf

C0 - Static Radial Rating

287000 N
64500
lbf

Ca90 - Dynamic Thrust Rating (90 million revolutions)3

36100 N
8110
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

1.47

e - ISO Factor2

0.4

Y - ISO Factor3

1.51

G1 - Heat Generation Factor (Roller-Raceway)

110.7

G2 - Heat Generation Factor (Rib-Roller End)

26.3

Cg - Geometry Factor4

0.0851
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