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Part Number LM377449H - LM377410
Part Number LM377449H - LM377410, Tapered Roller Bearings - TS (Tapered Single) Metric
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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
·
Basic Load Ratings
·
Factors
Specifications
Cone Part Number
LM377449H
Cup Part Number
LM377410
Design Unit
Metric
Related Assembly Number(s)
LM377449H-902C5
LM377449H-902D7
LM377449H-90WD5
LM377449H-90WD6
Dimensions
d - Bore
558.8
mm
22
in
D - Cup Outer Diameter
736.600
mm
29.0000
in
B - Cone Width
93
mm
3.6614
in
C - Cup Width
80.963
mm
3.1875
in
T - Bearing Width
104.775
mm
4.125
in
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius
1
6.4
mm
0.25
in
r - Cup Backface "To Clear" Radius
2
6.35
mm
0.250
in
db - Cone Backface Backing Diameter
594
mm
23.39
in
Da - Cup Frontface Backing Diameter
710.20
mm
27.96
in
Db - Cup Backface Backing Diameter
695.96
mm
27.40
in
Ab - Cage-Cone Frontface Clearance
10.16
mm
0.4
in
Aa - Cage-Cone Backface Clearance
6.9
mm
0.27
in
a - Effective Center Location
3
15.8
mm
0.62
in
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
741000
N
167000
lbf
C
a90
- Dynamic Thrust Rating (90 million revolutions)
2
439000
N
98800
lbf
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 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
1.69
e - ISO Factor
2
0.35
Y - ISO Factor
3
1.73
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.
VIEW CAD DRAWING
·
3D
·
2D ISO View
·
2D Sales Drawing
DOWNLOADS
Tapered Roller Bearing Engineering Information
(PDF, 663KB)
Bearing Life Calculation Tool
Bearing Dimensional Tolerances
