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Cylindrical Roller Radial Bearings - Two-Row
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ENGINEERED BEARINGS
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Cylindrical Roller Bearings
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Cylindrical Roller Radial Bearings - Two-Row
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Part Number NNU4944MAW33
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Part Number NNU4944MAW33, Cylindrical Roller Radial Bearings - Two-Row
Additional radial load-carrying capability compared to single-row product.
Designed to ISO/DIN specified interchangeable dimensions.
Sold as complete assembly.
NNU-1
Outer rings with solid ribs.
Lubrication grooves and holes on outer rings.
One solid brass cage.
The radial internal clearance (RIC) for the bearing assembly must be included when ordering the complete assembly.
larger image
larger image
Unit of Measure:
Imperial
Metric
Both
Specifications
·
Bearing Dimensions
·
Mounting Data
·
Lubrication Data
Specifications
Bore d
220
mm
Static Load Rating C
o
1150000
N
258000
lbf
Dynamic Load Rating C
1
1
577000
N
130000
lbf
Geometry Factor C
g
2
0.157
Thermal Speed Ratings - Oil
1400
rpm
Thermal Speed Ratings - Grease
1200
rpm
1
Based on 1 x 10
6
revolutions L
10
life, for the ISO life calculation method.
2
C
g
factor for bearing without inner ring.
Bearing Dimensions
O.D. D
300
mm
11.811
in
Width B
80
mm
3.1496
in
DUR/DOR F/E
245
mm
9.6457
in
Mounting Data
Chamfer r
smin
2.1
mm
0.08
in
Chamfer r
1smin
1
2.1
mm
0.080
in
Backing Shaft Diameter d
s
240
mm
9.4500
in
Backing Housing Diameter D
s
279
mm
10.98
in
1
Based on 1 x 10
6
revolutions L
10
life, for the ISO life calculation method.
Lubrication Data
Lubrication Groove g
12.3
mm
0.48
in
Lubrication Hole Diameter h
6.0
mm
0.24
in
Number of Lubrication Holes
6
Dimension S
1
3.90
mm
0.150
in
1
Permissible axial displacement from normal position of one bearing ring in relation to the other.
MORE IMAGES
·
timken-CRB-NN-Brass-Cage-Large-left-angle-view
·
timken-CRB-NN-Brass-Cage-Large-cutaway-view
·
timken-CRB-NN-Brass-Cage-Large-top-angle-view
VIEW CAD DRAWING
·
3D
·
2D Sales Drawing
·
2D Sectional View
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Catalog and Technical Information - Cylindrical Roller Bearings
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The Timken Company. ©
The Timken Company.
©
The Timken Company.