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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 2785 - 2734
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Part Number 2785 - 2734, 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
2700
Cone Part Number
2785
Cup Part Number
2734
Design Unit
Inch
Cage Material
Stamped Steel
Dimensions
d - Bore
1 5/16
in
33.338
mm
D - Cup Outer Diameter
3.1250
in
79.375
mm
B - Cone Width
1.0100
in
25.654
mm
C - Cup Width
0.8125
in
20.638
mm
T - Bearing Width
0.9986
in
25.364
mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius
1
0.14
in
3.600
mm
r - Cup Backface "To Clear" Radius
2
0.130
in
3.30
mm
da - Cone Frontface Backing Diameter
1.57
in
40
mm
db - Cone Backface Backing Diameter
1.81
in
46
mm
Da - Cup Frontface Backing Diameter
2.87
in
71.90
mm
Db - Cup Backface Backing Diameter
2.64
in
67.06
mm
Ab - Cage-Cone Frontface Clearance
0.06
in
1.5
mm
Aa - Cage-Cone Backface Clearance
0.04
in
1
mm
a - Effective Center Location
3
-0.32
in
-8.1
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
5060
lbf
22500
N
C1 - Dynamic Radial Rating (1 million revolutions)
2
19500
lbf
86900
N
C0 - Static Radial Rating
23000
lbf
102000
N
C
a90
- Dynamic Thrust Rating (90 million revolutions)
3
2630
lbf
11700
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
1.93
e - ISO Factor
2
0.3
Y - ISO Factor
3
1.98
Cg - Geometry Factor
4
0.0725
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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