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Tapered Roller Bearings - Single Cones - Imperial
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ENGINEERED BEARINGS
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Tapered Roller Bearings
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Tapered Roller Bearings - Single Cones
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Tapered Roller Bearings - Single Cones - Imperial
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Part Number LM251649NW
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Part Number LM251649NW, Tapered Roller Bearings - Single Cones - 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
LM251600
Cone Part Number
LM251649NW
Design Units
Imperial
Cage Type
Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)
1
221000
lbf
985000
N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)
2
57400
lbf
255000
N
1
Based on 1 x 10
6
revolutions L
10
life, for the ISO life calculation method.
2
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.
Dimensions
d - Cone Bore
10 1/2
in
266.7
mm
B - Cone Width
2.125
in
53.975
mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius
1
0.25
in
6.35
mm
da - Cone Frontface Backing Diameter
11.22
in
285
mm
db - Cone Backface Backing Diameter
11.46
in
291.0
mm
Ab - Cage-Cone Frontface Clearance
0
in
0
mm
Aa - Cage-Cone Backface Clearance
0.18
in
4.6
mm
a - Effective Center Location
2
0.16
in
4.1
mm
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
33000
lbf
147000
N
C1 - Dynamic Radial Rating (1 million revolutions)
2
127000
lbf
566000
N
C0 - Static Radial Rating
269000
lbf
1200000
N
C
a90
- Dynamic Thrust Rating (90 million revolutions)
3
18000
lbf
80100
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
1.83
1
These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
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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©
The Timken Company. ©
The Timken Company.
©
The Timken Company.