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All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - TS (Tapered Single) > Tapered Roller Bearings - TS (Tapered Single) Metric > Part Number 33019  
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Part Number 33019, Tapered Roller Bearings - TS (Tapered Single) Metric


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
33019

Cone Part Number
X33019

Cup Part Number
Y33019

Design Unit
Metric

Cage Material
Stamped Steel

Related Assembly Number(s)
33019-90KA1
33019-90NB1
KIT394821-90000


Dimensions

d - Bore
95 mm
3.7402 in

D - Cup Outer Diameter
145 mm
5.7087 in

B - Cone Width
39 mm
1.5354 in

C - Cup Width
32.500 mm
1.2795 in

T - Bearing Width
39.000 mm
1.5354 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
102 mm
4.02 in

db - Cone Backface Backing Diameter
106 mm
4.17 in

Da - Cup Frontface Backing Diameter
139.95 mm
5.51 in

Db - Cup Backface Backing Diameter
133.10 mm
5.24 in

Ab - Cage-Cone Frontface Clearance
3 mm
0.12 in

Aa - Cage-Cone Backface Clearance
1.3 mm
0.05 in

a - Effective Center Location3
-10.2 mm
-0.4 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
63800 N
14300 lbf

C1 - Dynamic Radial Rating (1 million revolutions)2
246000 N
55300 lbf

C0 - Static Radial Rating
378000 N
85100 lbf

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
30400 N
6830 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
2.1

e - ISO Factor2
0.28

Y - ISO Factor3
2.16

G1 - Heat Generation Factor (Roller-Raceway)
192.5

G2 - Heat Generation Factor (Rib-Roller End)
48.4

Cg - Geometry Factor4
0.0907
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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