7309BEP
Heavier load capacity than 7200. Used in gearboxes, electric motors, and industrial equipment requiring axial load support.
NTN730945 × 100 × 25mm
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$66.69
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Geometry100%
45 × 100 × 25mm
Sealing100%
Open (no seal)
Load rating100%
Cr 55 kN / C₀r 36.8 kN
Speed100%
6,600 rpm (grease)
Specifications
| Bore diameter (d) | 45 mm |
| Outer diameter (D) | 100 mm |
| Width (B) | 25 mm |
| Dynamic load rating (C) | 55 kN |
| Static load rating (C₀) | 36.8 kN |
| Weight | 600 g |
| Max speed (grease) | 6,600 rpm |
| Max speed (oil) | 8,900 rpm |
Why This Match Is Correct
✓Exact dimensional match (bore, OD, width)
✓Load ratings within tolerance
✓Seal type verified via manufacturer tables
✓Speed rating compatible
Equivalents Across Brands
| Brand | Part Number | Seal | Clearance | Status |
|---|---|---|---|---|
| NTN | 7309 | Open | CN | Verified |
| NSK | 7309A | Open | CN | Verified |
| Timken | 7309 | Open | CN | Verified |
| FAG | 7309-B-TVP | Open | CN | Verified |
| SKF | 7309 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
GearboxesAutomotive wheel hubsElectric motorsIndustrial pumpsHeavy machineryCompressorsPrinting pressesIndustrial electric motors (10-50 HP)Gearboxes and speed reducersHeavy-duty pumpsConveyor systemsMachine tool spindlesCentrifugal fans
AutomotiveHeavy industryManufacturingPower transmission
Other Variants Available
Same bearing geometry — different seal and clearance configurations.
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| 7309 BEP | Open (No Seal) | CN |
| 7309 BEP C3 | Open (No Seal) | C3 |
| 7309 BE-2RZP | 2RS | CN |
| 7309 BE-2RZP C3 | 2RS | C3 |