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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 EE299615 - 299711X  
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Part Number EE299615 - 299711X, 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

Cone Part Number
EE299615

Cup Part Number
299711X

Design Unit
Inch

Cage Material
Pin-Type


Dimensions

d - Bore
61.5000 in
1562.100 mm

D - Cup Outer Diameter
71.1250 in
1806.575 mm

B - Cone Width
4.8750 in
123.825 mm

C - Cup Width
3.3750 in
85.725 mm


Abutment and Fillet Dimensions

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

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

da - Cone Frontface Backing Diameter
62.99 in
1600 mm

db - Cone Backface Backing Diameter
63.58 in
1615 mm

Da - Cup Frontface Backing Diameter
71.46 in
1815.08 mm

Db - Cup Backface Backing Diameter
68.90 in
1750.06 mm

Ab - Cage-Cone Frontface Clearance
0.49 in
12.4 mm

Aa - Cage-Cone Backface Clearance
0.64 in
16.3 mm

a - Effective Center Location3
7.5 in
190.5 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
265000 lbf
1180000 N

C1 - Dynamic Radial Rating (1 million revolutions)2
1020000 lbf
4540000 N

C0 - Static Radial Rating
3770000 lbf
16800000 N

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
215000 lbf
955000 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
1.23

e - ISO Factor2
0.47

G1 - Heat Generation Factor (Roller-Raceway)
69875.1

G2 - Heat Generation Factor (Rib-Roller End)
7454.3

Cg - Geometry Factor3
0.575
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 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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