308K
SKF630840 × 90 × 23mm
In stock
$28.86
Partmatch price
- Ships from EU warehouse
- Ships within 2–3 business days
- Order 5+ for 5% off · 10+ for 10% off
Secure checkout
Verified supplier
30-day returns
VisaMastercardAmex
Not ready to buy?
Specifications
| Bore diameter (d) | 40 mm |
| Outer diameter (D) | 90 mm |
| Width (B) | 23 mm |
| Dynamic load rating (C) | 42.3 kN |
| Static load rating (C₀) | 24 kN |
| Weight | 611 g |
| Max speed (grease) | 11,000 rpm |
| Max speed (oil) | — |
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
Industrial electric motors (10-50 HP)Gearboxes and speed reducersHeavy-duty pumpsConveyor systemsMachine tool spindlesAutomotive wheel hubsCentrifugal fansCompressors