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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 EE911618 - 912400  
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Part Number EE911618 - 912400, 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
910000

Cone Part Number
EE911618

Cup Part Number
912400

Design Unit
Inch

Cage Material
Pin-Type

Related Assembly Number(s)
EE911618-90044


Dimensions

d - Bore
16.1875 in
411.163 mm

D - Cup Outer Diameter
24.0000 in
609.600 mm

B - Cone Width
3.3125 in
84.138 mm

C - Cup Width
2.3750 in
60.325 mm

T - Bearing Width
3.6250 in
92.075 mm


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
0.270 in
6.900 mm

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

da - Cone Frontface Backing Diameter
17.44 in
443 mm

db - Cone Backface Backing Diameter
17.6 in
447 mm

Da - Cup Frontface Backing Diameter
22.47 in
570.70 mm

Db - Cup Backface Backing Diameter
22.32 in
566.93 mm

Ab - Cage-Cone Frontface Clearance
0.3 in
7.6 mm

Aa - Cage-Cone Backface Clearance
0.66 in
16.8 mm

a - Effective Center Location3
0.47 in
11.9 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
107000 lbf
477000 N

C1 - Dynamic Radial Rating (1 million revolutions)2
414000 lbf
1840000 N

C0 - Static Radial Rating
645000 lbf
2870000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
70400 lbf
313000 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
1.52

e - ISO Factor2
0.38

Y - ISO Factor3
1.57

G1 - Heat Generation Factor (Roller-Raceway)
3251.1

G2 - Heat Generation Factor (Rib-Roller End)
349.1

Cg - Geometry Factor4
0.199
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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