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Double Row Cylindrical Roller Bearings
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Double Row Cylindrical Roller Bearings
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Item # NN3038K
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Item # NN3038K, Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NN
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
Tapered
Material
Hardened Alloy Steel
Cage Material
High Strength, 2 piece, Machined Brass
Limiting Speed - Oil
2400
RPM
Limiting Speed - Grease
2000
RPM
Taper
1:12
Precision
ISO Class 0
Configuration
Two
Oil Hole
w/o Oil Hole
Radial Internal Clearance
CN
Static Load Rating
234000
lbf
1040000
N
1040.00
kN
Dynamic Load Rating
130000
lbf
580000
N
580.00
kN
Enclosure
Open
Operating Temperature Range
-40 to 250
ºF
-40 to 120
ºC
Dimensional Specifications
Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NN - Dimensions
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d
7.4803
in
190.000
mm
D
11.4173
in
290.000
mm
B
2.9528
in
75.000
mm
C
2.9528
in
75.000
mm
Ew
10.4331
in
265.000
mm
r
0.0827
in
2.100
mm
da min
7.9134
in
201.000
mm
db min
8.1496
in
207.000
mm
Da max
10.5118
in
267.000
mm
Db min
10.5118
in
267.000
mm
Db max
10.9843
in
279.000
mm
ras max
0.0787
in
2.000
mm
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