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Double Row Cylindrical Roller Bearings
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Double Row Cylindrical Roller Bearings
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Item # NN4924K
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Item # NN4924K, 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
4200
RPM
Limiting Speed - Grease
3600
RPM
Taper
1:12
Precision
ISO Class 0
Configuration
Two
Oil Hole
w/o Oil Hole
Radial Internal Clearance
CN
Static Load Rating
81000
lbf
360000
N
360.00
kN
Dynamic Load Rating
41000
lbf
183000
N
183.00
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
4.7244
in
120.000
mm
D
6.4961
in
165.000
mm
B
1.7717
in
45.000
mm
C
1.7717
in
45.000
mm
Ew
6.0827
in
154.500
mm
r
0.0433
in
1.100
mm
da min
4.9803
in
126.500
mm
db min
5.1181
in
130.000
mm
Da max
6.1614
in
156.500
mm
Db min
6.1614
in
156.500
mm
Db max
6.2402
in
158.500
mm
ras max
0.0394
in
1.000
mm
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