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NTN NN3034KC1NAP4 is a double-row cylindrical roller bearing with a 170 mm bore, open enclosure, and a high-strength two-piece machined brass cage. The NN type configuration has no flanges on the outer ring, allowing axial expansion. Made from hardened alloy steel, it is suitable for high-speed and high-precision applications such as machine tool spindles and rolling mills.
MODEL NN3034KC1NAP4
$3,083.01 Each
Prices are subject to change
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Returnable:No
B (in)
2.6378
Bore Type
Tapered
Bore type
Tapered
C (in)
2.6378
Cage Material
High Strength, 2 piece, Machined Brass
Cage material
High strength, 2 piece, machined brass
Configuration
Two
D (in)
10.2362
d (in)
6.6929
Da max
9.3701 in
da min
7.126 in
Db max
9.8031 in
Db min
9.3701 in
db min
7.3622 in
Dynamic Load Rating
99000 lbf
Dynamic load rating
99000 lbf
Enclosure
Open
Ew
9.2913 in
I.D.
170 mm
Limiting Speed - Grease
2300 RPM
Limiting speed - grease
2300 RPM
Limiting Speed - Oil
2700 RPM
Limiting speed - oil
2700 RPM
Material
Hardened alloy steel
O.D.
260 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
174000 lbf
Static load rating
174000 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 | 2700 RPM |
Limiting Speed - Grease | 2300 RPM |
Taper | 1:12 |
Precision | ISO Class 4 |
Configuration | Two |
Oil Hole | w/o Oil Hole |
Radial Internal Clearance | C1NA |
Static Load Rating | 174000 lbf775000 N775.00 kN |
Dynamic Load Rating | 99000 lbf440000 N440.00 kN |
Enclosure | Open |
Weight | 27.198 lb12.337 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 6.6929 in170.000 mm |
D | 10.2362 in260.000 mm |
B | 2.6378 in67.000 mm |
C | 2.6378 in67.000 mm |
Ew | 9.2913 in236.000 mm |
r | 0.0827 in2.100 mm |
da min | 7.1260 in181.000 mm |
db min | 7.3622 in187.000 mm |
Da max | 9.3701 in238.000 mm |
Db min | 9.3701 in238.000 mm |
Db max | 9.8031 in249.000 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 | JW Winco |
| Model | 881-M16X1.5-200-MS-M |