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Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NN
MODEL NN3021KNAP5
$811.38 Each
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B (in)
1.6142
Bore type
Tapered
Bore Type
Tapered
C (in)
1.6142
Cage material
High strength, 2 piece, machined brass
Cage Material
High Strength, 2 piece, Machined Brass
Configuration
Two
D (in)
6.2992
d (in)
4.1339
Da max
5.8268 in
da min
4.4882 in
Db max
5.9449 in
Db min
5.8268 in
db min
4.6063 in
Dynamic load rating
44500 lbf
Dynamic Load Rating
44500 lbf
Enclosure
Open
Ew
5.7480 in
Limiting speed - grease
3800 RPM
Limiting Speed - Grease
3800 RPM
Limiting speed - oil
4500 RPM
Limiting Speed - Oil
4500 RPM
Material
Hardened Alloy Steel
Oil hole
w/o Oil Hole
Oil Hole
w/o Oil Hole
Operating temperature range
-40 to 250 ºF
Operating Temperature Range
-40 to 250 °F
Precision
ISO Class 5
r (in)
0.0787
Radial internal clearance
C0NA
Radial Internal Clearance
C0NA
ras max
0.0787 in
Static load rating
72000 lbf
Static Load Rating
72000 lbf
Taper
1:12
Type
Cylindrical Roller Bearing
Technical Specifications
Type | Cylindrical Roller Bearing |
Bore Type | Tapered |
Material | Hardened Alloy Steel |
Cage Material | High Strength, 2 piece, Machined Brass |
Limiting Speed - Oil | 4500 RPM |
Limiting Speed - Grease | 3800 RPM |
Taper | 1:12 |
Precision | ISO Class 5 |
Configuration | Two |
Oil Hole | w/o Oil Hole |
Radial Internal Clearance | C0NA |
Static Load Rating | 72000 lbf320000 N320.00 kN |
Dynamic Load Rating | 44500 lbf198000 N198.00 kN |
Enclosure | Open |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 4.1339 in105.000 mm |
D | 6.2992 in160.000 mm |
B | 1.6142 in41.000 mm |
C | 1.6142 in41.000 mm |
Ew | 5.7480 in146.000 mm |
r | 0.0787 in2.000 mm |
da min | 4.4882 in114.000 mm |
db min | 4.6063 in117.000 mm |
Da max | 5.8268 in148.000 mm |
Db min | 5.8268 in148.000 mm |
Db max | 5.9449 in151.000 mm |
ras max | 0.0787 in2.000 mm |
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