All Product Types > ENGINEERED BEARINGS > Tapered Roller Bearings > Tapered Roller Bearings - Single Cones > Tapered Roller Bearings - Single Cones - Metric > Part Number JP14049  

Part Number JP14049, Tapered Roller Bearings - Single Cones - Metric

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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.




Specifications  · Dimensions  · Abutment and Fillet Dimensions  · Basic Load Ratings  · Factors

Specifications

Series
JP14000

Cone Part Number
JP14049

Design Units
METRIC

Cage Type
Stamped Steel

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1
354000 N
79500 lbf

C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2
91700 N
20600 lbf

Full Timken Part Number
JP14000
1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
2 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.


Dimensions

d - Cone Bore
140 mm
5.5118 in

B - Cone Width
27.000 mm
1.0630 in


Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1
3.050 mm
0.12 in

da - Cone Frontface Backing Diameter
148 mm
5.83 in

db - Cone Backface Backing Diameter
153 mm
6.02 in

Ab - Cage-Cone Frontface Clearance
4.8 mm
0.19 in

Aa - Cage-Cone Backface Clearance
2 mm
0.08 in

a - Effective Center Location2
11.9 mm
0.47 in
1 These maximum fillet radii will be cleared by the bearing corners.
2 Negative value indicates effective center inside cone backface.


Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)1
52700 N
11800 lbf

C1 - Dynamic Radial Rating (1 million revolutions)2
203000 N
45700 lbf

C0 - Static Radial Rating
304000 N
68400 lbf

Ca90 - Dynamic Thrust Rating (90 million revolutions)3
45400 N
10200 lbf
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
1.16

G1 - Heat Generation Factor (Roller-Raceway)
220

G2 - Heat Generation Factor (Rib-Roller End)
68.1

Cg - Geometry Factor2
0.113
1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
2 Geometry constant for Lubrication Life Adjustment Factor a3l.



 DOWNLOADS 

Tapered Roller Bearing Engineering Information
(PDF, 663KB)

Bearing Life Calculation Tool

Bearing Dimensional Tolerances