7304BETNU
Heavier load capacity than 7200. Used in gearboxes, electric motors, and industrial equipment requiring axial load support.
NTN730420 × 52 × 15mm
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$25.19
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Specifications
| Bore diameter (d) | 20 mm |
| Outer diameter (D) | 52 mm |
| Width (B) | 15 mm |
| Dynamic load rating (C) | 14.31 kN |
| Static load rating (C₀) | 6.24 kN |
| Weight | 89 g |
| Max speed (grease) | 11,900 rpm |
| Max speed (oil) | 15,300 rpm |
Equivalents Across Brands
| Brand | Part Number | Seal | Clearance | Status |
|---|---|---|---|---|
| NTN | 7304 | Open | CN | Probable |
| NSK | 7304A | Open | CN | Probable |
| Timken | 7304 | Open | CN | Probable |
| FAG | 7304-B-TVP | Open | CN | Probable |
| SKF | 7304 BEP | 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
GearboxesAutomotive wheel hubsElectric motorsIndustrial pumpsHeavy machineryCompressorsPrinting pressesGeneral-purpose electric motors (1-10 HP)Pumps and compressorsAutomotive alternators and A/C compressorsConveyor rollersAgricultural machineryWashing machinesIndustrial fans
AutomotiveHeavy industryManufacturingPower transmission
Other Variants Available
Same bearing geometry — different seal and clearance configurations.
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| 7304 BEP | Open (No Seal) | CN |
| 7304 BEP C3 | Open (No Seal) | C3 |
| 7304 BE-2RZP | 2RS | CN |
| 7304 BE-2RZP C3 | 2RS | C3 |