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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 EE671801 - 672873  
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Part Number EE671801 - 672873, 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
670000

Cone Part Number
EE671801

Cup Part Number
672873

Design Unit
Inch

Cage Material
Pin-Type

Related Assembly Number(s)
EE671801-90016
EE671801-90025


Dimensions

d - Bore
18.0000 in
457.200 mm

D - Cup Outer Diameter
28.7460 in
730.148 mm

B - Cone Width
4.5000 in
114.300 mm

C - Cup Width
3.25 in
82.55 mm

T - Bearing Width
4.7500 in
120.650 mm


Abutment and Fillet Dimensions

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

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

da - Cone Frontface Backing Diameter
19.33 in
491 mm

db - Cone Backface Backing Diameter
19.96 in
507 mm

Da - Cup Frontface Backing Diameter
26.93 in
680.50 mm

Db - Cup Backface Backing Diameter
26.57 in
674.88 mm

Ab - Cage-Cone Frontface Clearance
0.54 in
13.7 mm

Aa - Cage-Cone Backface Clearance
0.71 in
18 mm

a - Effective Center Location3
0.21 in
5.3 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
165000 lbf
733000 N

C1 - Dynamic Radial Rating (1 million revolutions)2
635000 lbf
2830000 N

C0 - Static Radial Rating
1100000 lbf
4870000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
111000 lbf
492000 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
1.49

e - ISO Factor2
0.39

Y - ISO Factor3
1.53

G1 - Heat Generation Factor (Roller-Raceway)
4970

G2 - Heat Generation Factor (Rib-Roller End)
343

Cg - Geometry Factor4
0.231
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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