NU204W
Single row cylindrical roller bearings with ribs on the outer ring only. NU-type allows free axial float in both directions, making it ideal as the non-locating bearing in a pair. Same envelope as 6200 deep groove but with ~2x radial load capacity.
FAGNU204-E-TVP220 × 47 × 14mm
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$40.79
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Specifications
| Bore diameter (d) | 20 mm |
| Outer diameter (D) | 47 mm |
| Width (B) | 14 mm |
| Dynamic load rating (C) | 16.6 kN |
| Static load rating (C₀) | 13.9 kN |
| Weight | 111 g |
| Max speed (grease) | 12,000 rpm |
| Max speed (oil) | 16,000 rpm |
Why This Match Is Correct
✓Exact dimensional match (bore, OD, width)
✓Load ratings within tolerance
✓Seal type verified via manufacturer tables
✓Speed rating compatible
Equivalents Across Brands
| Brand | Part Number | Seal | Clearance | Status |
|---|---|---|---|---|
| FAG | NU204-E-TVP2 | Open | CN | Verified |
| NSK | NU204W | Open | CN | Current |
| NTN | NU204ET2 | Open | CN | Verified |
| SKF | NU 204 ECP | Open | CN | Verified |
| Timken | NU204EM | Open | CN | Verified |
Seal Type
Open (No Seal)
No seals or shields. Allows external lubrication and cooling. Lowest friction, highest speed capability.
Best forClean environments with external lubrication systems. High-speed applications where heat dissipation matters.
Avoid forDirty, dusty, or wet environments. Applications without planned lubrication maintenance.
Examples
- Machine tool spindles
- Gearboxes with oil bath lubrication
- High-speed precision equipment
Internal Clearance
Normal Clearance (CN)
Standard radial internal clearance. Suitable for most applications under normal operating conditions.
Best forGeneral-purpose use. Normal temperatures, standard fits, moderate speeds.
TemperatureUp to ~70°C operating temperature
Where This Bearing Is Used
Cylindrical Roller — Light Series (NU) — Common Applications
- Electric motors (non-drive end)
- Pumps and compressors
- Gearboxes
- Fans and blowers
- Machine tool spindles
- Rolling mill equipment
- Conveyor rollers
Electric motorsPumpsMachine toolsHeavy industry
Medium-Small (20mm bore) — Typical Uses
- General-purpose electric motors (1-10 HP)
- Pumps and compressors
- Automotive alternators and A/C compressors
- Conveyor rollers
- Agricultural machinery
- Washing machines
- Industrial fans
- Printing presses
Other Variants Available
Same bearing geometry — different seal and clearance configurations.
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| NU 204 ECP | Open (No Seal) | CN |
| NU 204 ECP/C3 | Open (No Seal) | C3 |