1211CG
Double row self-aligning ball bearings that compensate for shaft deflection and housing misalignment up to 2-3°. Light series with same bore dimensions as 6200.
SKF621155 × 100 × 21mm
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$34.72
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Specifications
| Bore diameter (d) | 55 mm |
| Outer diameter (D) | 100 mm |
| Width (B) | 21 mm |
| Dynamic load rating (C) | 46.2 kN |
| Static load rating (C₀) | 29 kN |
| Weight | 591 g |
| Max speed (grease) | 9,000 rpm |
| Max speed (oil) | 7,000 rpm |
Equivalents Across Brands
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
Textile machineryConveyor rollersAgricultural equipmentFans and blowersPumps with flexible couplingsWoodworking machineryPrinting pressesLarge electric motors (50+ HP)Industrial gearboxesHeavy-duty conveyor systemsMining and construction equipmentPaper mill machinerySteel rolling millsLarge compressorsWind turbine components
TextileAgricultureMaterial handlingPaper & pulp
Other Variants Available
Same bearing geometry — different seal and clearance configurations.
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| 1211 ETN9 | Open (No Seal) | CN |
| 1211 ETN9 C3 | Open (No Seal) | C3 |