| Symbol | Value | Description |
|---|---|---|
| ≈m | 5.3 kg | Weight |
| Cr | 266000 N | Basic dynamic load rating, radial |
| C0r | 265000 N | Basic static load rating, radial |
| nG | 4300 rpm | Limiting speed |
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NTN
NTN
NTN NU318C3 Cylindrical Roller Bearing 90 × 190 × 43 mm
Cylindrical Roller Bearing
RFQ
Estimated delivery: 18 Jul 2026 (domestic stock)
In stockEstimated delivery: 18 Jul 2026 (domestic stock)
EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.
- Category
- Cylindrical Roller Bearing
- Bore
- 90 mm
- Outer Ø
- 190 mm
- Width
- 43 mm
Overview
NTN NU318C3 Cylindrical Roller Bearing is designed for high radial load capacity through line contact between rollers and raceways. It is suitable for rigid, heavy-duty applications such as motors, gearboxes, rolling mills, and machine tools, with N, NU, NJ, and NUP designs offering different axial locating functions.
Cylindrical rollers and a cage are arranged between inner and outer ring raceways. Depending on flange configuration, the bearing can be separable and may support axial load in one or both directions.
Key features
- High radial load capacity
- Rigid performance for high-speed operation
- Separable design for easier mounting
- Axial locating capability by design variant
Typical applications
- Industrial electric motors
- Gearboxes and reducers
- Machine tool spindle support positions
- Rolling mills, paper machines, and heavy machinery
Selection guidance
Choose the N, NU, NJ, or NUP design by load direction, axial locating requirement, cage material, internal clearance, and lubrication condition.
| Symbol | Value | Description |
|---|---|---|
| d | 90 mm | Bore diameter |
| D | 190 mm | Outside diameter |
| B | 43 mm | Width |
| Symbol | Value | Description |
|---|---|---|
| Tmin | -40 °C | Operating temperature min. |
| Tmax | 120 °C | Operating temperature max. |
| Code | Description |
|---|---|
| C3 | Radial clearance group |
Excerpt from the manufacturer's official catalog — NTN CAT.2203E — Ball and Roller Bearings
Also searched as
The same part number can be written with or without separators, or in progressive prefix form. We index these common variants so your search reaches this page:
NTNNU318C3NTN NU318C3
