51105J9
Single direction thrust ball bearings for axial loads in one direction. Compact design with high axial load capacity relative to size.
SKF5110525 × 42 × 11mm
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$12.35
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Specifications
| Bore diameter (d) | 25 mm |
| Outer diameter (D) | 42 mm |
| Width (B) | 11 mm |
| Dynamic load rating (C) | 19.9 kN |
| Static load rating (C₀) | 44 kN |
| Weight | 55 g |
| Max speed (grease) | 5,600 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
Machine tool spindlesAutomotive steering columnsScrew jacks and lead screwsRotary tablesCrane hooks and swivelsVertical pumpsTurntables and indexing tablesGeneral-purpose electric motors (1-10 HP)Pumps and compressorsAutomotive alternators and A/C compressorsConveyor rollersAgricultural machineryWashing machinesIndustrial fansPrinting presses
Machine toolsAutomotiveMaterial handlingIndustrial equipment
Other Variants Available
Same bearing geometry — different seal and clearance configurations.
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| 51105 | Open (No Seal) | CN |