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NTN NNU3026NAP5 double row cylindrical roller bearing with a 130 mm straight bore. This NNU type bearing features flanges on the inner ring and an open design. The high strength, two-piece machined brass cage provides reliable roller guidance. Constructed from hardened alloy steel for durability in precision machine tool spindles and heavy-duty industrial applications.
MODEL NNU3026NAP5
$4,001.39 Each
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Returnable:No
B (in)
2.0472
Bore Type
Cylindrical
Bore type
Cylindrical
C (in)
2.0472
Cage Material
High Strength, 2 piece, Machined Brass
Cage material
High strength, 2 piece, machined brass
Configuration
Two
D (in)
7.8740
d (in)
5.1181
da min
5.4724 in
Db max
7.5197 in
Db min
7.2047 in
db min
5.6299 in
Dynamic Load Rating
64000 lbf
Dynamic load rating
64000 lbf
Enclosure
Open
Fw
5.9055 in
I.D.
130 mm
Limiting Speed - Grease
3100 RPM
Limiting speed - grease
3100 RPM
Limiting Speed - Oil
3600 RPM
Limiting speed - oil
3600 RPM
Material
Hardened alloy steel
O.D.
200 mm
Oil Hole
w/o Oil Hole
Oil hole
w/o Oil Hole
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO Class 5
r (in)
0.0787
Radial Internal Clearance
C0NA
Radial internal clearance
C0NA
ras max
0.0787 in
Static Load Rating
107000 lbf
Static load rating
107000 lbf
Tolerance
ISO class 0 (RBEC 1)
Type
Cylindrical Roller Bearing
Technical Specifications
Type | Cylindrical Roller Bearing |
Bore Type | Cylindrical |
Material | Hardened Alloy Steel |
Cage Material | High Strength, 2 piece, Machined Brass |
Limiting Speed - Oil | 3600 RPM |
Limiting Speed - Grease | 3100 RPM |
Precision | ISO Class 5 |
Configuration | Two |
Tolerance | ISO Class 0 (RBEC 1) |
Oil Hole | w/o Oil Hole |
Radial Internal Clearance | C0NA |
Static Load Rating | 107000 lbf475000 N475.00 kN |
Dynamic Load Rating | 64000 lbf284000 N284.00 kN |
Enclosure | Open |
Weight | 12.059 lb5.470 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 5.1181 in130.000 mm |
D | 7.8740 in200.000 mm |
B | 2.0472 in52.000 mm |
C | 2.0472 in52.000 mm |
Fw | 5.9055 in150.000 mm |
r | 0.0787 in2.000 mm |
da min | 5.4724 in139.000 mm |
db min | 5.6299 in143.000 mm |
Db min | 7.2047 in183.000 mm |
Db max | 7.5197 in191.000 mm |
ras max | 0.0787 in2.000 mm |
How do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.
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