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Double Row Cylindrical Roller Bearings
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Double Row Cylindrical Roller Bearings
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Item # NN4928K
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Item # NN4928K, 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
3600
RPM
Limiting Speed - Grease
3000
RPM
Taper
1:12
Precision
ISO Class 0
Configuration
Two
Oil Hole
w/o Oil Hole
Radial Internal Clearance
CN
Static Load Rating
106000
lbf
470000
N
470.00
kN
Dynamic Load Rating
51000
lbf
227000
N
227.00
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
5.5118
in
140.000
mm
D
7.4803
in
190.000
mm
B
1.9685
in
50.000
mm
C
1.9685
in
50.000
mm
Ew
7.0079
in
178.000
mm
r
0.0591
in
1.500
mm
da min
5.8268
in
148.000
mm
db min
5.9843
in
152.000
mm
Da max
7.0866
in
180.000
mm
Db min
7.0866
in
180.000
mm
Db max
7.1654
in
182.000
mm
ras max
0.0591
in
1.500
mm
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