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NTN NN3009C1NAP4 is a double row cylindrical roller bearing with a 45 mm straight bore. The NN type design has no flanges on the inner or outer ring, allowing axial expansion. It features a C1 internal clearance and P4 precision class for high-accuracy applications such as machine tool spindles and precision gearboxes.
MODEL NN3009C1NAP4
$528.34 Each
Prices are subject to change
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Returnable:No
B (in)
0.9055
Bore Type
Cylindrical
Bore type
Cylindrical
C (in)
0.9055
Cage Material
High Strength, 2 piece, Machined Brass
Cage material
High strength, 2 piece, machined brass
Configuration
Two
D (in)
2.9528
d (in)
1.7717
da min
1.9685 in
Db max
2.7559 in
Db min
2.7165 in
db min
2.0472 in
Dynamic Load Rating
11700 lbf
Dynamic load rating
11700 lbf
Enclosure
Open
Ew
2.6575 in
I.D.
45 mm
Limiting Speed - Grease
11600 RPM
Limiting speed - grease
11600 RPM
Limiting Speed - Oil
14000 RPM
Limiting speed - oil
14000 RPM
Material
Hardened alloy steel
O.D.
75 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 4
r (in)
0.0394
Radial Internal Clearance
C1NA
Radial internal clearance
C1NA
ras max
0.0394 in
Static Load Rating
15500 lbf
Static load rating
15500 lbf
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 | 14000 RPM |
Limiting Speed - Grease | 11600 RPM |
Precision | ISO Class 4 |
Configuration | Two |
Oil Hole | w/o Oil Hole |
Radial Internal Clearance | C1NA |
Static Load Rating | 15500 lbf68900 N68.90 kN |
Dynamic Load Rating | 11700 lbf52000 N52.00 kN |
Enclosure | Open |
Weight | 0.866 lb0.393 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 1.7717 in45.000 mm |
D | 2.9528 in75.000 mm |
B | 0.9055 in23.000 mm |
C | 0.9055 in23.000 mm |
Ew | 2.6575 in67.500 mm |
r | 0.0394 in1.000 mm |
da min | 1.9685 in50.000 mm |
db min | 2.0472 in52.000 mm |
Db min | 2.7165 in69.000 mm |
Db max | 2.7559 in70.000 mm |
ras max | 0.0394 in1.000 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.