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NTN NU319C3 single-row cylindrical roller bearing with a 95 mm straight bore. The NU type has no flanges on the outer ring, making it separable and able to accommodate axial expansion. Features an open enclosure, pressed steel cage, and C3 clearance. Constructed from hardened alloy steel for gearboxes, electric motors, and pumps.
MODEL NU319C3
$720.09 Each
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Returnable:No
B (in)
1.7717
Bore Type
Round
Bore type
Round
Cage Material
Pressed Steel
Cage material
Pressed steel
Cage Type
Pressed Steel
Cage type
Pressed steel
Configuration
One
d (in)
3.7402
D (in)
7.8740
Da max
7.3622 in
da min
4.252 in
Db max
7.3622 in
db min
4.2520 in
Dynamic Load Rating
58000 lbf
Dynamic load rating
58000 lbf
Enclosure
Open
Fw
4.7835 in
I.D.
95 mm
Limiting Speed - Grease
3400 RPM
Limiting speed - grease
3400 RPM
Limiting Speed - Oil
4000 RPM
Limiting speed - oil
4000 RPM
Material
Hardened alloy steel
O.D.
200 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 0
r (in)
0.0984
r1as max
0.0984 in
Radial Internal Clearance
C3
Radial internal clearance
C3
Static Load Rating
64000 lbf
Static load rating
64000 lbf
Tolerance
ISO class 0 (RBEC 1)
Type
Cylindrical Roller Bearing
Technical Specifications
Type | Cylindrical Roller Bearing |
Bore Type | Round |
Material | Hardened Alloy Steel |
Cage Type | Pressed Steel |
Cage Material | Pressed Steel |
Limiting Speed - Oil | 4000 RPM |
Limiting Speed - Grease | 3400 RPM |
Precision | ISO Class 0 |
Configuration | One |
Tolerance | ISO Class 0 (RBEC 1) |
Oil Hole | w/o Oil Hole |
Radial Internal Clearance | C3 |
Static Load Rating | 64000 lbf285000 N285.00 kN |
Dynamic Load Rating | 58000 lbf259000 N259.00 kN |
Enclosure | Open |
Weight | 13.580 lb6.160 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 3.7402 in95.000 mm |
D | 7.8740 in200.000 mm |
B | 1.7717 in45.000 mm |
Fw | 4.7835 in121.500 mm |
r | 0.0984 in2.500 mm |
da min | 4.2520 in108.000 mm |
db min | 4.2520 in108.000 mm |
Da max | 7.3622 in187.000 mm |
Db max | 7.3622 in187.000 mm |
r1as max | 0.0984 in2.500 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.