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NTN NN3036KC1NAP4 is a double-row cylindrical roller bearing with a 180 mm straight bore. The NN type configuration has no flanges on the outer ring, allowing axial expansion. It features a high-strength two-piece machined brass cage and is open (unsealed). Constructed from hardened alloy steel, this bearing is suitable for high-speed and high-precision applications such as machine tool spindles.
MODEL NN3036KC1NAP4
$3,405.70 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable:No
B (in)
2.9134
Bore Type
Tapered
Bore type
Tapered
C (in)
2.9134
Cage Material
High Strength, 2 piece, Machined Brass
Cage material
High strength, 2 piece, machined brass
Configuration
Two
D (in)
11.0236
d (in)
7.0866
Da max
10.1181 in
da min
7.5197 in
Db max
10.5906 in
Db min
10.1181 in
db min
7.7559 in
Dynamic Load Rating
127000 lbf
Dynamic load rating
127000 lbf
Enclosure
Open
Ew
10.0394 in
I.D.
180 mm
Limiting Speed - Grease
2200 RPM
Limiting speed - grease
2200 RPM
Limiting Speed - Oil
2600 RPM
Limiting speed - oil
2600 RPM
Material
Hardened alloy steel
O.D.
280 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)
0.0827
Radial Internal Clearance
C1NA
Radial internal clearance
C1NA
ras max
0.0787 in
Static Load Rating
224000 lbf
Static load rating
224000 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 | 2600 RPM |
Limiting Speed - Grease | 2200 RPM |
Taper | 1:12 |
Precision | ISO Class 4 |
Configuration | Two |
Oil Hole | w/o Oil Hole |
Radial Internal Clearance | C1NA |
Static Load Rating | 224000 lbf995000 N995.00 kN |
Dynamic Load Rating | 127000 lbf565000 N565.00 kN |
Enclosure | Open |
Weight | 35.935 lb16.300 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 7.0866 in180.000 mm |
D | 11.0236 in280.000 mm |
B | 2.9134 in74.000 mm |
C | 2.9134 in74.000 mm |
Ew | 10.0394 in255.000 mm |
r | 0.0827 in2.100 mm |
da min | 7.5197 in191.000 mm |
db min | 7.7559 in197.000 mm |
Da max | 10.1181 in257.000 mm |
Db min | 10.1181 in257.000 mm |
Db max | 10.5906 in269.000 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.
| Brand | Ringspann |
| Model | 4821.105.106.M00737 |