NU-304-ECP-C3
Geometry100%
20 × 52 × 15mm
Sealing100%
Open (no seal)
Load rating100%
Cr 31.5 kN / C₀r 26.9 kN
Speed100%
11,000 rpm (grease)
FAGNU304-E-TVP2-C3
Pricing not yet available for this part.
Match Details
The specifications and details for why this match is correct.
Specifications
| Bore diameter (d) | 20 mm |
| Outer diameter (D) | 52 mm |
| Width (B) | 15 mm |
| Dynamic load rating (C) | 31.5 kN |
| Static load rating (C₀) | 26.9 kN |
| Weight | 176 g |
| Max speed (grease) | 11,000 rpm |
| Max speed (oil) | — |
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Why This Match Is Correct
✓Exact dimensional match (bore, OD, width)
✓Load ratings within tolerance
✓Seal type verified via manufacturer tables
✓Speed rating compatible
Cross-References
Every way this part is identified across brands and catalogs.
Tier-1 Brand Equivalents
| Brand | Part Number | Seal | Clearance | Status |
|---|---|---|---|---|
| FAG | NU304-E-TVP2-C3 | Open | C3 | Probable |
| NSK | NU304W C3 | Open | C3 | Probable |
| NTN | NU304ET2 C3 | Open | C3 | Probable |
| SKF | NU 304 ECP/C3 | Open | C3 | Probable |
| Timken | NU304EM/C3 | Open | C3 | Probable |
Legacy & Proprietary Numbers
NTNNU304Verified — Schaeffler Brand Interchange · last checked 4 weeks ago · perfect interchangeSKFNU304Verified — Schaeffler Brand Interchange · last checked 4 weeks ago · perfect interchangeKOYONU304Verified — Schaeffler Brand Interchange · last checked 4 weeks ago · perfect interchangeSNRNU304Verified — Schaeffler Brand Interchange · last checked 4 weeks ago · perfect interchangeZKLNU304High confidence — Schaeffler Brand Interchange · last checked 4 weeks ago · near equivalentNTNNU304EVerified — Schaeffler Brand Interchange · last checked 4 weeks ago · perfect interchangeSKFNU304ECPVerified — Schaeffler Brand Interchange · last checked 4 weeks ago · perfect interchange
Technical Details & Applications
Specification variations and common equipment types.
Internal Clearance
Greater Than Normal (C3)
Increased radial internal clearance. Required when bearings operate at elevated temperatures or with tight shaft fits.
Temperature70-150°C operating temperature
Seal Type
Open (No Seal)
No seals or shields. Allows external lubrication and cooling. Lowest friction, highest speed capability.
Avoid forDirty, dusty, or wet environments. Applications without planned lubrication maintenance.
Examples
- Machine tool spindles
- Gearboxes with oil bath lubrication
- High-speed precision equipment
Where This Bearing Is Used
Electric motorsPumps and compressorsConveyor rollersAgricultural machineryFans and blowersGearboxesPower transmission equipmentWashing machinesPrinting pressesHVACAutomotive alternators and A/C compressors
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