7211BECBJ
For combined radial and axial loads. Higher rigidity than deep groove bearings. Machine tool spindles, pumps, automotive wheel hubs.
NTN721155 × 100 × 21mm
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$74.10
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Specifications
| Bore diameter (d) | 55 mm |
| Outer diameter (D) | 100 mm |
| Width (B) | 21 mm |
| Dynamic load rating (C) | 46.3 kN |
| Static load rating (C₀) | 36 kN |
| Weight | 598 g |
| Max speed (grease) | 6,100 rpm |
| Max speed (oil) | 8,200 rpm |
Equivalents Across Brands
| Brand | Part Number | Seal | Clearance | Status |
|---|---|---|---|---|
| NTN | 7211 | Open | CN | Probable |
| NSK | 7211A | Open | CN | Verified |
| Timken | 7211 | Open | CN | Verified |
| FAG | 7211-B-TVP | Open | CN | Probable |
| SKF | 7211 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 hubsLarge electric motors (50+ HP)Industrial gearboxesHeavy-duty conveyor systemsMining and construction equipmentPaper mill machinerySteel rolling millsLarge compressorsWind turbine components
Precision engineeringMachine toolsAutomotiveMedical devices
Other Variants Available
Same bearing geometry — different seal and clearance configurations.
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| 7211 BEP | Open (No Seal) | CN |
| 7211 BEP C3 | Open (No Seal) | C3 |
| 7211 BE-2RZP | 2RS | CN |
| 7211 BE-2RZP C3 | 2RS | C3 |