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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 EE328167 - 328269  
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Part Number EE328167 - 328269, 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
328000

Cone Part Number
EE328167

Cup Part Number
328269

Design Unit
Inch

Cage Material
Pin-Type

Related Assembly Number(s)
EE328167-90020


Dimensions

d - Bore
16.7500 in
425.450 mm

D - Cup Outer Diameter
26.9960 in
685.698 mm

B - Cone Width
5.6220 in
142.799 mm

C - Cup Width
4.1250 in
104.775 mm

T - Bearing Width
5.6250 in
142.875 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.500 in
12.700 mm

r - Cup Backface "To Clear" Radius2
0.250 in
6.35 mm

da - Cone Frontface Backing Diameter
18.23 in
463 mm

db - Cone Backface Backing Diameter
18.98 in
482 mm

Da - Cup Frontface Backing Diameter
25.07 in
636.80 mm

Db - Cup Backface Backing Diameter
24.57 in
624.08 mm

Ab - Cage-Cone Frontface Clearance
0.17 in
4.3 mm

Aa - Cage-Cone Backface Clearance
0.8 in
20.3 mm

a - Effective Center Location3
-0.32 in
-8.1 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
183000 lbf
812000 N

C1 - Dynamic Radial Rating (1 million revolutions)2
704000 lbf
3130000 N

C0 - Static Radial Rating
1360000 lbf
6030000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
126000 lbf
559000 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
1.45

e - ISO Factor2
0.4

Y - ISO Factor3
1.49

G1 - Heat Generation Factor (Roller-Raceway)
5606.6

G2 - Heat Generation Factor (Rib-Roller End)
353

Cg - Geometry Factor4
0.244
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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