6205-2RS
The most widely used bearing series. Versatile, good balance of load capacity and speed. The go-to choice for general-purpose applications.
NSK6205DDU25 × 52 × 15mm
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Specifications
| Bore diameter (d) | 25 mm |
| Outer diameter (D) | 52 mm |
| Width (B) | 15 mm |
| Dynamic load rating (C) | 14.8 kN |
| Static load rating (C₀) | 7.8 kN |
| Weight | 91 g |
| Max speed (grease) | 18,000 rpm |
| Max speed (oil) | 28,000 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
Seal Type
Rubber Sealed (2RS)
Rubber contact seals on both sides. Superior protection from contaminants. Pre-lubricated, maintenance-free.
Best forDirty, dusty, or wet environments. Applications requiring long maintenance-free operation.
Avoid forVery high-speed applications (seal friction limits top speed). Environments exceeding 110°C.
Examples
- Agricultural machinery
- Conveyor rollers
- Automotive components
- Outdoor equipment
- Washing machines
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 (25mm 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 |
|---|---|---|
| 6205 | Open (No Seal) | CN |
| 6205 C3 | Open (No Seal) | C3 |
| 6205-2Z | ZZ | CN |
| 6205-2Z C3 | ZZ | C3 |
| 6205-2RS1 | 2RS | CN |
| 6205-2RS1 C3 | 2RS | C3 |