6211-2Z/C3HT51
The most widely used bearing series. Versatile, good balance of load capacity and speed. The go-to choice for general-purpose applications.
SKF6211-2Z C355 × 100 × 21mm
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$42.07
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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) | 14,000 rpm |
Equivalents Across Brands
| Brand | Part Number | Seal | Clearance | Status |
|---|---|---|---|---|
| SKF | 6211-2Z C3 | ZZ | C3 | Probable |
| FAG | 6211-2ZR-C3 | ZZ | C3 | Probable |
| NSK | 6211ZZ C3E | ZZ | C3 | Verified |
| NTN | 6211ZZ/C3 | ZZ | C3 | Probable |
| Timken | 6211-ZZ C3 | ZZ | C3 | Probable |
Internal Clearance
Greater Than Normal (C3)
Increased radial internal clearance. Required when bearings operate at elevated temperatures or with tight shaft fits.
Best forHigh-temperature applications. Tight interference fits. Electric motors with frequent starts/stops.
Temperature70-150°C operating temperature
Seal Type
Metal Shielded (ZZ / 2Z)
Metal shields on both sides. Moderate protection from dust and debris. Pre-lubricated with grease.
Best forModerately clean environments. Applications where some contamination is possible but not severe.
Avoid forHarsh environments with heavy moisture, chemicals, or fine dust ingress.
Examples
- Electric motors
- Fans and blowers
- Power tools
- HVAC equipment
Where This Bearing Is Used
Electric motorsPumps and compressorsConveyor rollersAgricultural machineryAutomotive components (alternators, water pumps, A/C)Washing machines and dryersFans and blowersGearboxesPower transmission equipmentSkateboard and inline skate wheelsLarge electric motors (50+ HP)Industrial gearboxesHeavy-duty conveyor systemsMining and construction equipmentPaper mill machinerySteel rolling millsLarge compressorsWind turbine components
ManufacturingAutomotiveAgricultureHVACConsumer goods
Other Variants Available
Same bearing geometry — different seal and clearance configurations.
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| 6211 | Open (No Seal) | CN |
| 6211 C3 | Open (No Seal) | C3 |
| 6211-2Z | ZZ | CN |
| 6211-2Z C3 | ZZ | C3 |
| 6211-2RS1 | 2RS | CN |
| 6211-2RS1 C3 | 2RS | C3 |