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NTN NN3010KC1NAP4 is a double row cylindrical roller bearing with a 50 mm bore and tapered bore (1:12). The NN type has no flanges on the outer ring, allowing axial expansion. Features a machined brass cage and P4 precision class. Suitable for high-speed machine tool spindles and precision applications.
MODEL NN3010KC1NAP4
$547.36 Each
Prices are subject to change
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Returnable:No
B (in)
0.9055
Bore Type
Tapered
Bore type
Tapered
C (in)
0.9055
Cage Material
High Strength, 2 piece, Machined Brass
Cage material
High strength, 2 piece, machined brass
Configuration
Two
D (in)
3.1496
d (in)
1.9685
Da max
2.9134 in
da min
2.1654 in
Db max
2.9528 in
db min
2.2441 in
Db min
2.9134 in
Dynamic Load Rating
11900 lbf
Dynamic load rating
11900 lbf
Enclosure
Open
Ew
2.8543 in
I.D.
50 mm
Limiting Speed - Grease
8000 RPM
Limiting speed - grease
8000 RPM
Limiting Speed - Oil
9400 RPM
Limiting speed - oil
9400 RPM
Material
Hardened alloy steel
O.D.
80 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
16300 lbf
Static load rating
16300 lbf
Taper
1 to 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 | 9400 RPM |
Limiting Speed - Grease | 8000 RPM |
Taper | 1:12 |
Precision | ISO Class 4 |
Configuration | Two |
Oil Hole | w/o Oil Hole |
Radial Internal Clearance | C1NA |
Static Load Rating | 16300 lbf72500 N72.50 kN |
Dynamic Load Rating | 11900 lbf53000 N53.00 kN |
Enclosure | Open |
| 0.904 lb0.410 kg | |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 1.9685 in50.000 mm |
|---|---|
D | 3.1496 in80.000 mm |
B | 0.9055 in23.000 mm |
C | 0.9055 in23.000 mm |
Ew | 2.8543 in72.500 mm |
r | 0.0394 in1.000 mm |
da min | 2.1654 in55.000 mm |
db min | 2.2441 in57.000 mm |
Da max | 2.9134 in74.000 mm |
Db min | 2.9134 in74.000 mm |
Db max | 2.9528 in75.000 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.
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