6203-2RSR-C3
The most widely used bearing series. Versatile, good balance of load capacity and speed. The go-to choice for general-purpose applications.
SKF6203-2RS1 C317 × 40 × 12mm
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Specifications
| Bore diameter (d) | 17 mm |
| Outer diameter (D) | 40 mm |
| Width (B) | 12 mm |
| Dynamic load rating (C) | 9.95 kN |
| Static load rating (C₀) | 4.75 kN |
| Weight | 62 g |
| Max speed (grease) | 24,000 rpm |
| Max speed (oil) | 38,000 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 | 6203-2RS1 C3 | 2RS | C3 | Verified |
| FAG | 6203-2RSR-C3 | 2RS | C3 | Current |
| NSK | 6203DDU C3E | 2RS | C3 | Verified |
| NTN | 6203LLU/C3 | 2RS | C3 | Verified |
| Timken | 6203-2RS C3 | 2RS | C3 | Probable |
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
Greater Than Normal (C3)
Increased radial internal clearance. Required when bearings operate at elevated temperatures or with tight shaft fits.
Best forHigh-temperature applications. Tight interference fits. Electric motors with frequent starts/stops.
Temperature70-150°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
Miniature / Small (17mm bore) — Typical Uses
- Small electric motors (fractional HP)
- Fans and blowers
- Power tools (drills, grinders)
- Office equipment (printers, copiers)
- Household appliances
- Skateboards and roller skates
- RC vehicles and hobby motors
Other Variants Available
Same bearing geometry — different seal and clearance configurations.
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| 6203 | Open (No Seal) | CN |
| 6203 C3 | Open (No Seal) | C3 |
| 6203-2Z | ZZ | CN |
| 6203-2Z C3 | ZZ | C3 |
| 6203-2RS1 | 2RS | CN |
| 6203-2RS1 C3 | 2RS | C3 |