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NTN NN3008KC1NAP4 is a double row cylindrical roller bearing with a 40 mm bore and tapered bore (1:12). The NN type configuration has no flanges on the outer ring, allowing axial expansion. This bearing features a machined brass cage and P4 precision class for high-speed, high-accuracy applications such as machine tool spindles and precision rolling mills.
MODEL NN3008KC1NAP4
$492.11 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable:No
B (in)
0.8268
Bore Type
Tapered
Bore type
Tapered
C (in)
0.8268
Cage Material
High Strength, 2 piece, Machined Brass
Cage material
High strength, 2 piece, machined brass
Configuration
Two
D (in)
2.6772
d (in)
1.5748
Da max
2.4409 in
da min
1.7717 in
Db max
2.4803 in
Db min
2.4409 in
db min
1.8504 in
Dynamic Load Rating
9800 lbf
Dynamic load rating
9800 lbf
Enclosure
Open
Ew
2.4016 in
I.D.
40 mm
Limiting Speed - Grease
9700 RPM
Limiting speed - grease
9700 RPM
Limiting Speed - Oil
11000 RPM
Limiting speed - oil
11000 RPM
Material
Hardened alloy steel
O.D.
68 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
12500 lbf
Static load rating
12500 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 | 11000 RPM |
Limiting Speed - Grease | 9700 RPM |
Taper | 1:12 |
Precision | ISO Class 4 |
Configuration | Two |
Oil Hole | w/o Oil Hole |
Radial Internal Clearance | C1NA |
Static Load Rating | 12500 lbf55500 N55.50 kN |
Dynamic Load Rating | 9800 lbf43500 N43.50 kN |
Enclosure | Open |
Weight | 0.657 lb0.298 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 1.5748 in40.000 mm |
D | 2.6772 in68.000 mm |
B | 0.8268 in21.000 mm |
C | 0.8268 in21.000 mm |
Ew | 2.4016 in61.000 mm |
r | 0.0394 in1.000 mm |
da min | 1.7717 in45.000 mm |
db min | 1.8504 in47.000 mm |
Da max | 2.4409 in62.000 mm |
Db min | 2.4409 in62.000 mm |
Db max | 2.4803 in63.000 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.
| Brand | Adam Equipment |
| Model | PMB 163 |
