51206MG
Double direction thrust ball bearings for axial loads in both directions. Used where bidirectional axial loads must be supported.
SKF5120630 × 54 × 19mm
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$16.85
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Specifications
| Bore diameter (d) | 30 mm |
| Outer diameter (D) | 54 mm |
| Width (B) | 19 mm |
| Dynamic load rating (C) | 13.3 kN |
| Static load rating (C₀) | 30 kN |
| Weight | 113 g |
| Max speed (grease) | 4,505 rpm |
| Max speed (oil) | 5,695 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
Machine tool spindles (bidirectional)Hydraulic cylindersVertical shaft assembliesPrecision positioning equipmentScrew drivesHeavy machinery pivotsIndustrial gearboxesGeneral-purpose electric motors (1-10 HP)Pumps and compressorsAutomotive alternators and A/C compressorsConveyor rollersAgricultural machineryWashing machinesIndustrial fansPrinting presses
Machine toolsHydraulicsHeavy industryPrecision engineering
Other Variants Available
Same bearing geometry — different seal and clearance configurations.
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| 51206 | Open (No Seal) | CN |