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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 NNU4988MAW33
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Part Number NNU4988MAW33, 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
5740000
N
1292000
lbf
Dynamic Load Rating C
1
1
2500000
N
562000
lbf
Geometry Factor C
g
2
0.2860
Thermal Speed Ratings - Oil
460
rpm
Thermal Speed Ratings - Grease
420
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
600
mm
23.6220
in
Width B
160
mm
6.2992
in
DUR/DOR F/E
490
mm
19.2913
in
Mounting Data
Chamfer r
smin
4
mm
0.16
in
Chamfer r
1smin
1
4
mm
0.160
in
Backing Shaft Diameter d
s
480.4
mm
18.9100
in
Backing Housing Diameter D
s
558
mm
21.9700
in
1
Based on 1 x 10
6
revolutions L
10
life, for the ISO life calculation method.
Lubrication Data
Lubrication Groove g
16.0
mm
0.63
in
Lubrication Hole Diameter h
8.0
mm
0.31
in
Number of Lubrication Holes
10
Dimension S
1
6.80
mm
0.270
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.