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Double Row Cylindrical Roller Bearings
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Double Row Cylindrical Roller Bearings
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Item # NNU4952
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Item # NNU4952, Double Row Cylindrical Roller Bearing w/ Cylindrical Bore - Type NNU
The rollers in the NN type bearing are guided by the ribs of the inner ring.
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Unit of Measure:
Imperial
Metric
Both
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Technical Specifications
·
Dimensional Specifications
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Technical Specifications
Type
Cylindrical Roller Bearing
Bore Type
Cylindrical
Material
Hardened Alloy Steel
Cage Material
High Strength, 2 piece, Machined Brass
Limiting Speed - Oil
1800
RPM
Limiting Speed - Grease
1600
RPM
Precision
ISO Class 0
Configuration
Two
Tolerance
ISO Class 0 (RBEC 1)
Oil Hole
w/o Oil Hole
Radial Internal Clearance
CN
Static Load Rating
465000
lbf
2070000
N
2070.00
kN
Dynamic Load Rating
202000
lbf
900000
N
900.00
kN
Enclosure
Open
Weight
65.257
lb
29.600
kg
Operating Temperature Range
-40 to 250
ºF
-40 to 120
ºC
Dimensional Specifications
Double Row Cylindrical Roller Bearing w/ Cylindrical Bore - Type NNU - Dimensions
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d
10.2362
in
260.000
mm
D
14.1732
in
360.000
mm
B
3.9370
in
100.000
mm
C
3.9370
in
100.000
mm
Fw
11.4961
in
292.000
mm
r
0.0827
in
2.100
mm
da min
10.6693
in
271.000
mm
db min
10.9843
in
279.000
mm
Da max
13.7402
in
349.000
mm
Db min
13.3465
in
339.000
mm
Db max
13.7402
in
349.000
mm
ras max
0.0787
in
2.000
mm
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