30211 J2
Light series metric tapered roller bearings with narrow width. The most common tapered roller series for general-purpose applications. Handles combined radial and axial loads with high rigidity.
Timken3021155 × 100 × 22.75mm
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$42.32
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Specifications
| Bore diameter (d) | 55 mm |
| Outer diameter (D) | 100 mm |
| Width (B) | 22.75 mm |
| Dynamic load rating (C) | 52.3 kN |
| Static load rating (C₀) | 32.5 kN |
| Weight | 514 g |
| Max speed (grease) | 4,500 rpm |
| Max speed (oil) | 6,000 rpm |
Equivalents Across Brands
| Brand | Part Number | Seal | Clearance | Status |
|---|---|---|---|---|
| Timken | 30211 | Open | CN | Probable |
| NSK | HR30211J | Open | CN | Probable |
| NTN | 4T-30211 | Open | CN | Probable |
| FAG | 30211-XL | Open | CN | Probable |
| SKF | 30211 J2/Q | 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
Automotive wheel hubsGearboxes and transmissionsMachine tool spindlesAgricultural equipmentDifferential assembliesConveyor rollersPumps and compressorsLarge electric motors (50+ HP)Industrial gearboxesHeavy-duty conveyor systemsMining and construction equipmentPaper mill machinerySteel rolling millsLarge compressorsWind turbine components
AutomotivePower transmissionAgricultureHeavy industry
Other Variants Available
Same bearing geometry — different seal and clearance configurations.
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| 30211 J2/Q | Open (No Seal) | CN |
| 30211 J2/Q C3 | Open (No Seal) | C3 |