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Tapered Roller Bearings - TS (Tapered Single) Imperial
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Tapered Roller Bearings
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Tapered Roller Bearings - TS (Tapered Single)
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Tapered Roller Bearings - TS (Tapered Single) Imperial
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Part Number A2031 - A2127
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Part Number A2031 - A2127, 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.
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Unit of Measure:
Imperial
Metric
Both
Specifications
·
Dimensions
·
Abutment and Fillet Dimensions
·
Basic Load Ratings
·
Factors
Specifications
Series
A2000
Cone Part Number
A2031
Cup Part Number
A2127
Design Unit
Inch
Cage Material
Stamped Steel
Note
This part has a non-standard shoulder design. Please email customer CAD for shoulder details to ensure the proper design of mating components.
Dimensions
d - Bore
0.3125
in
7.938
mm
D - Cup Outer Diameter
1.2595
in
31.991
mm
B - Cone Width
0.4246
in
10.785
mm
C - Cup Width
0.3755
in
9.538
mm
T - Bearing Width
0.4161
in
10.569
mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius
1
0.02
in
0.50
mm
r - Cup Backface "To Clear" Radius
2
0.050
in
1.27
mm
da - Cone Frontface Backing Diameter
0.49
in
12.5
mm
db - Cone Backface Backing Diameter
0.51
in
13
mm
Da - Cup Frontface Backing Diameter
1.14
in
28.96
mm
Db - Cup Backface Backing Diameter
1.02
in
25.91
mm
Ab - Cage-Cone Frontface Clearance
0.09
in
2.3
mm
Aa - Cage-Cone Backface Clearance
-0.03
in
-0.8
mm
a - Effective Center Location
3
-0.12
in
-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
630
lbf
2800
N
C1 - Dynamic Radial Rating (1 million revolutions)
2
2430
lbf
10800
N
C0 - Static Radial Rating
2070
lbf
9230
N
C
a90
- Dynamic Thrust Rating (90 million revolutions)
3
437
lbf
1940
N
1
Based on 90 x 10
6
revolutions L
10
life, for The Timken Company life calculation method. C
90
and C
a90
are radial and thrust values.
2
Based on 1 x 10
6
revolutions L
10
life, for the ISO life calculation method.
3
Based on 90 x 10
6
revolutions L
10
life, for The Timken Company life calculation method. C
90
and C
a90
are radial and thrust values for a single-row, C
90(2)
is the two-row radial value.
Factors
K - Factor
1
1.44
e - ISO Factor
2
0.41
Y - ISO Factor
3
1.48
G1 - Heat Generation Factor (Roller-Raceway)
1.7
G2 - Heat Generation Factor (Rib-Roller End)
3.2
Cg - Geometry Factor
4
0.0308
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.
VIEW CAD DRAWING
·
3D
·
2D Sectional View
·
2D Sales Drawing
DOWNLOADS
Tapered Roller Bearing Engineering Information
(PDF, 663KB)
Bearing Life Calculation Tool
Bearing Dimensional Tolerances
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