6204
The most widely used bearing series. Versatile, good balance of load capacity and speed. The go-to choice for general-purpose applications.
SKF620420 × 47 × 14mm
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$6.67
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Specifications
| Bore diameter (d) | 20 mm |
| Outer diameter (D) | 47 mm |
| Width (B) | 14 mm |
| Dynamic load rating (C) | 13.5 kN |
| Static load rating (C₀) | 6.55 kN |
| Weight | 102 g |
| Max speed (grease) | 20,000 rpm |
| Max speed (oil) | 32,000 rpm |
Why This Match Is Correct
✓Exact dimensional match (bore, OD, width)
✓Load ratings within tolerance
✓Seal type verified via manufacturer tables
✓Speed rating compatible
Equivalents Across Brands
| Brand | Part Number | Seal | Clearance | Status |
|---|---|---|---|---|
| SKF | 6204 | Open | CN | Current |
| FAG | 6204 | Open | CN | Current |
| NSK | 6204 | Open | CN | Current |
| NTN | 6204 | Open | CN | Current |
| Timken | 6204 | Open | CN | Current |
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
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
Where This Bearing Is Used
Light Series — Common Applications
- Electric motors
- Pumps and compressors
- Conveyor rollers
- Agricultural machinery
- Automotive components (alternators, water pumps, A/C)
- Washing machines and dryers
- Fans and blowers
- Gearboxes
- Power transmission equipment
- Skateboard and inline skate wheels
ManufacturingAutomotiveAgricultureHVACConsumer goods
Medium-Small (20mm bore) — Typical Uses
- General-purpose electric motors (1-10 HP)
- Pumps and compressors
- Automotive alternators and A/C compressors
- Conveyor rollers
- Agricultural machinery
- Washing machines
- Industrial fans
- Printing presses
Other Variants Available
Same bearing geometry — different seal and clearance configurations.
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| 6204 C3 | Open (No Seal) | C3 |
| 6204-2Z | ZZ | CN |
| 6204-2Z C3 | ZZ | C3 |
| 6204-2RS1 | 2RS | CN |
| 6204-2RS1 C3 | 2RS | C3 |