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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 EE170950 - 171450  
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Part Number EE170950 - 171450, 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
170000

Cone Part Number
EE170950

Cup Part Number
171450

Design Unit
Inch

Cage Material
Stamped Steel


Dimensions

d - Bore
9.5000 in
241.300 mm

D - Cup Outer Diameter
14.5000 in
368.300 mm

B - Cone Width
2 in
50.8 mm

C - Cup Width
1.3125 in
33.338 mm

T - Bearing Width
2.0000 in
50.800 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.25 in
6.4 mm

r - Cup Backface "To Clear" Radius2
0.130 in
3.30 mm

da - Cone Frontface Backing Diameter
10.24 in
260 mm

db - Cone Backface Backing Diameter
10.59 in
269.0 mm

Da - Cup Frontface Backing Diameter
13.34 in
337.10 mm

Db - Cup Backface Backing Diameter
13.39 in
340.11 mm

Ab - Cage-Cone Frontface Clearance
0.3 in
7.6 mm

Aa - Cage-Cone Backface Clearance
0.4 in
10.2 mm

a - Effective Center Location3
0.23 in
5.8 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
37500 lbf
167000 N

C1 - Dynamic Radial Rating (1 million revolutions)2
144000 lbf
643000 N

C0 - Static Radial Rating
231000 lbf
1030000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
23300 lbf
104000 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
1.61

e - ISO Factor2
0.36

Y - ISO Factor3
1.65

G1 - Heat Generation Factor (Roller-Raceway)
1070

G2 - Heat Generation Factor (Rib-Roller End)
172

Cg - Geometry Factor4
0.135
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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