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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 LM281849 - LM281810
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Part Number LM281849 - LM281810, 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
LM281800
Cone Part Number
LM281849
Cup Part Number
LM281810
Design Unit
Inch
Cage Material
Pin-Type
Related Assembly Number(s)
LM281849-90013
Dimensions
d - Bore
26.7500
in
679.450
mm
D - Cup Outer Diameter
35.5000
in
901.700
mm
B - Cone Width
5.6250
in
142.875
mm
C - Cup Width
4.375
in
111.125
mm
T - Bearing Width
5.6250
in
142.875
mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius
1
0.380
in
9.700
mm
r - Cup Backface "To Clear" Radius
2
0.250
in
6.35
mm
da - Cone Frontface Backing Diameter
28.11
in
714
mm
db - Cone Backface Backing Diameter
28.58
in
726
mm
Da - Cup Frontface Backing Diameter
34.33
in
871.98
mm
Db - Cup Backface Backing Diameter
33.54
in
851.92
mm
Ab - Cage-Cone Frontface Clearance
0.36
in
9.1
mm
Aa - Cage-Cone Backface Clearance
0.42
in
10.7
mm
a - Effective Center Location
3
0.27
in
6.9
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
292000
lbf
1300000
N
C1 - Dynamic Radial Rating (1 million revolutions)
2
1130000
lbf
5020000
N
C0 - Static Radial Rating
2480000
lbf
11000000
N
C
a90
- Dynamic Thrust Rating (90 million revolutions)
3
166000
lbf
741000
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
1.76
e - ISO Factor
2
0.33
Y - ISO Factor
3
1.8
G1 - Heat Generation Factor (Roller-Raceway)
16300
G2 - Heat Generation Factor (Rib-Roller End)
961
Cg - Geometry Factor
4
0.325
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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