All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - Single Cones > Tapered Roller Bearings - Single Cones - Imperial > Part Number EE153044  

Part Number EE153044, Tapered Roller Bearings - Single Cones - Imperial

    Download PDF Download PDF   
    border="0" Printable Page  
    Email Email This Page  
    Save To Favorites Save To Favorites
  

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
153000

Cone Part Number
EE153044

Design Units
Imperial

Cage Type
Stamped Steel

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1
278000 lbf
1240000 N

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2
72100 lbf
321000 N
1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
2 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.


Dimensions

d - Cone Bore
4.7500 in
120.650 mm

B - Cone Width
3.2500 in
82.550 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.380 in
9.700 mm

da - Cone Frontface Backing Diameter
5.55 in
141 mm

db - Cone Backface Backing Diameter
6.18 in
157 mm

Ab - Cage-Cone Frontface Clearance
-0.08 in
-2 mm

Aa - Cage-Cone Backface Clearance
0.45 in
11.4 mm

a - Effective Center Location2
-0.97 in
-24.6 mm
1 These maximum fillet radii will be cleared by the bearing corners.
2 Negative value indicates effective center inside cone backface.


Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)1
41400 lbf
184000 N

C1 - Dynamic Radial Rating (1 million revolutions)2
160000 lbf
711000 N

C0 - Static Radial Rating
232000 lbf
1030000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
22800 lbf
101000 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
1.82

G1 - Heat Generation Factor (Roller-Raceway)
490.5

G2 - Heat Generation Factor (Rib-Roller End)
65.1

Cg - Geometry Factor2
0.129
1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
2 Geometry constant for Lubrication Life Adjustment Factor a3l.



 DOWNLOADS 

Tapered Roller Bearing Engineering Information
(PDF, 663KB)

Bearing Life Calculation Tool

Bearing Dimensional Tolerances