7203BETNG
For combined radial and axial loads. Higher rigidity than deep groove bearings. Machine tool spindles, pumps, automotive wheel hubs.
NTN720317 × 40 × 12mm
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$18.53
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Specifications
| Bore diameter (d) | 17 mm |
| Outer diameter (D) | 40 mm |
| Width (B) | 12 mm |
| Dynamic load rating (C) | 9.93 kN |
| Static load rating (C₀) | 5.54 kN |
| Weight | 64 g |
| Max speed (grease) | 17,000 rpm |
| Max speed (oil) | 22,000 rpm |
Equivalents Across Brands
| Brand | Part Number | Seal | Clearance | Status |
|---|---|---|---|---|
| NTN | 7203 | Open | CN | Probable |
| NSK | 7203A | Open | CN | Verified |
| Timken | 7203 | Open | CN | Verified |
| FAG | 7203-B-TVP | Open | CN | Probable |
| SKF | 7203 BEP | Open | CN | Verified |
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
Machine tool spindlesPumps and compressorsElectric motorsPrecision equipmentCNC machinesDental handpiecesAutomotive wheel hubsSmall electric motors (fractional HP)Fans and blowersPower tools (drills, grinders)Office equipment (printers, copiers)Household appliancesSkateboards and roller skatesRC vehicles and hobby motors
Precision engineeringMachine toolsAutomotiveMedical devices
Other Variants Available
Same bearing geometry — different seal and clearance configurations.
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| 7203 BEP | Open (No Seal) | CN |
| 7203 BEP C3 | Open (No Seal) | C3 |
| 7203 BE-2RZP | 2RS | CN |
| 7203 BE-2RZP C3 | 2RS | C3 |