7303BETNU
Heavier load capacity than 7200. Used in gearboxes, electric motors, and industrial equipment requiring axial load support.
NTN730317 × 47 × 14mm
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$22.23
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Specifications
| Bore diameter (d) | 17 mm |
| Outer diameter (D) | 47 mm |
| Width (B) | 14 mm |
| Dynamic load rating (C) | 12.15 kN |
| Static load rating (C₀) | 5.24 kN |
| Weight | 68 g |
| Max speed (grease) | 13,600 rpm |
| Max speed (oil) | 17,000 rpm |
Equivalents Across Brands
| Brand | Part Number | Seal | Clearance | Status |
|---|---|---|---|---|
| NTN | 7303 | Open | CN | Probable |
| NSK | 7303A | Open | CN | Probable |
| Timken | 7303 | Open | CN | Probable |
| FAG | 7303-B-TVP | Open | CN | Probable |
| SKF | 7303 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 pressesSmall electric motors (fractional HP)Fans and blowersPower tools (drills, grinders)Office equipment (printers, copiers)Household appliancesSkateboards and roller skatesRC vehicles and hobby motors
AutomotiveHeavy industryManufacturingPower transmission
Other Variants Available
Same bearing geometry — different seal and clearance configurations.
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| 7303 BEP | Open (No Seal) | CN |
| 7303 BEP C3 | Open (No Seal) | C3 |
| 7303 BE-2RZP | 2RS | CN |
| 7303 BE-2RZP C3 | 2RS | C3 |