7220A
For combined radial and axial loads. Higher rigidity than deep groove bearings. Machine tool spindles, pumps, automotive wheel hubs.
NTN7220100 × 180 × 34mm
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$308.75
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Geometry100%
100 × 180 × 34mm
Sealing100%
Open (no seal)
Load rating100%
Cr 112.5 kN / C₀r 74.4 kN
Speed100%
3,400 rpm (grease)
Specifications
| Bore diameter (d) | 100 mm |
| Outer diameter (D) | 180 mm |
| Width (B) | 34 mm |
| Dynamic load rating (C) | 112.5 kN |
| Static load rating (C₀) | 74.4 kN |
| Weight | 2360 g |
| Max speed (grease) | 3,400 rpm |
| Max speed (oil) | 4,250 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 | 7220 | Open | CN | Verified |
| NSK | 7220A | Open | CN | Current |
| Timken | 7220 | Open | CN | Verified |
| FAG | 7220-B-TVP | Open | CN | Verified |
| SKF | 7220 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 hubs
Precision engineeringMachine toolsAutomotiveMedical devices
Other Variants Available
Same bearing geometry — different seal and clearance configurations.
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| 7220 BEP | Open (No Seal) | CN |
| 7220 BEP C3 | Open (No Seal) | C3 |
| 7220 BE-2RZP | 2RS | CN |
| 7220 BE-2RZP C3 | 2RS | C3 |