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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 NNU4188MAW33
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Part Number NNU4188MAW33, 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
440
mm
Static Load Rating C
o
11400000
N
2560000
lbf
Dynamic Load Rating C
1
1
6620000
N
1490000
lbf
Geometry Factor C
g
2
0.3110
Thermal Speed Ratings - Oil
370
rpm
Thermal Speed Ratings - Grease
340
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
720
mm
28.3465
in
Width B
280
mm
11.0236
in
DUR/DOR F/E
511
mm
20.1181
in
Mounting Data
Chamfer r
smin
6
mm
0.24
in
Chamfer r
1smin
1
6
mm
0.240
in
Backing Shaft Diameter d
s
497.4
mm
19.5800
in
Backing Housing Diameter D
s
661
mm
26.0200
in
1
Based on 1 x 10
6
revolutions L
10
life, for the ISO life calculation method.
Lubrication Data
Lubrication Groove g
25.3
mm
1.00
in
Lubrication Hole Diameter h
13.0
mm
0.51
in
Number of Lubrication Holes
12
Dimension S
1
11.00
mm
0.430
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.