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Double Row Cylindrical Roller Bearings
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Item # NNU4926
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Item # NNU4926, 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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Ordering Options
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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
3900
RPM
Limiting Speed - Grease
3300
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
99000
lbf
440000
N
440.00
kN
Dynamic Load Rating
49500
lbf
220000
N
220.00
kN
Enclosure
Open
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
5.1181
in
130.000
mm
D
7.0866
in
180.000
mm
B
1.9685
in
50.000
mm
C
1.9685
in
50.000
mm
Fw
5.7480
in
146.000
mm
r
0.0591
in
1.500
mm
da min
5.4331
in
138.000
mm
db min
5.5906
in
142.000
mm
Da max
6.2402
in
158.500
mm
Db min
6.6929
in
170.000
mm
Db max
6.7717
in
172.000
mm
ras max
0.0591
in
1.500
mm
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