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Part Number 138172
Part Number 138172, Tapered Roller Bearings - Single Cups - Imperial
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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.
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Specifications
·
Dimensions
·
Abutment and Fillet Dimensions
·
Factors
Specifications
Series
138000
Cup Part Number
138172
Design Units
Imperial
Dimensions
D - Cup Outer Diameter
17.2450
in
438.023
mm
C - Cup Width
1.875
in
47.625
mm
Abutment and Fillet Dimensions
r - Cup Backface "To Clear" Radius
1
0.130
in
3.30
mm
Db - Cup Backface Backing Diameter
16.22
in
412.00
mm
1
These maximum fillet radii will be cleared by the bearing corners.
Factors
K - Factor
1
1.27
e - ISO Factor
2
0.46
Y - ISO Factor
3
1.31
G1 - Heat Generation Factor (Roller-Raceway)
1970
G2 - Heat Generation Factor (Rib-Roller End)
290
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.
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Tapered Roller Bearing Engineering Information
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Bearing Life Calculation Tool
Bearing Dimensional Tolerances
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