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NTN NU326EG1C4 is a single-row cylindrical roller bearing with a 130 mm straight bore. The NU design features no flanges on the outer ring, making it separable and able to accommodate axial expansion. It has a high-strength machined brass cage and C4 clearance for applications requiring thermal expansion accommodation.
MODEL NU326EG1C4
$2,663.78 Each
Prices are subject to change
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Returnable:No
B (in)
2.2835
Bore Type
Round
Bore type
Round
Cage Material
High Strength Machined Brass Rivetless w/ square holes
Cage material
High strength machined brass rivetless w/ square holes
Configuration
One
D (in)
11.0236
d (in)
5.1181
Da max
10.3937 in
da min
5.748 in
Dynamic Load Rating
138000 lbf
Dynamic load rating
138000 lbf
Enclosure
Open
Fw
6.5748 in
I.D.
130 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
r (in)
0.1575
r1as max
0.1181 in
Radial Internal Clearance
C4
Radial internal clearance
C4
Static Load Rating
165000 lbf
Static load rating
165000 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 Material | High Strength Machined Brass Rivetless w/ square holes |
| Limiting Speed - Oil | 2600 RPM |
| Limiting Speed - Grease | 2200 RPM |
| Configuration | One |
| Tolerance | ISO Class 0 (RBEC 1) |
| Oil Hole | w/o Oil Hole |
| Radial Internal Clearance | C4 |
| Static Load Rating | 165000 lbf735000 N735.00 kN |
| Dynamic Load Rating | 138000 lbf615000 N615.00 kN |
| Enclosure | Open |
| Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
| d | 5.1181 in130.000 mm |
|---|---|
| D | 11.0236 in280.000 mm |
| B | 2.2835 in58.000 mm |
| Fw | 6.5748 in167.000 mm |
| r | 0.1575 in4.000 mm |
| da min | 5.7480 in146.000 mm |
| Da max | 10.3937 in264.000 mm |
| r1as max | 0.1181 in3.000 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.
