NJ304
Medium cross-section cylindrical roller bearings (NJ-type) with one-direction axial restraint. Higher load capacity than NJ200 series. Same dimensions as NU300 but with semi-locating capability.
FAGNJ304-E-TVP220 × 52 × 15mm
In stock
$64.05
Partmatch price
- Ships from EU warehouse
- Ships within 2–3 business days
- Order 5+ for 5% off · 10+ for 10% off
Secure checkout
Verified supplier
30-day returns
VisaMastercardAmex
Not ready to buy?
Geometry100%
20 × 52 × 15mm
Sealing100%
Open (no seal)
Load rating100%
Cr 31.5 kN / C₀r 26.9 kN
Speed100%
11,000 rpm (grease)
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) | — |
Equivalents Across Brands
| Brand | Part Number | Seal | Clearance | Status |
|---|---|---|---|---|
| FAG | NJ304-E-TVP2 | Open | CN | Probable |
| NSK | NJ304W | Open | CN | Probable |
| NTN | NJ304ET2 | Open | CN | Probable |
| SKF | NJ 304 ECP | Open | CN | Probable |
| Timken | NJ304EM | Open | CN | Probable |
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
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
Where This Bearing Is Used
Large electric motors (drive end)Heavy-duty gearboxesCompressor crankshaftsRail traction motorsMarine propulsionCrusher equipmentSteel mill equipmentGeneral-purpose electric motors (1-10 HP)Pumps and compressorsAutomotive alternators and A/C compressorsConveyor rollersAgricultural machineryWashing machinesIndustrial fansPrinting presses
RailMarineMiningSteel