6310DDU C3E
Higher load capacity than the 6200 series for the same bore size. Used where heavier radial loads are expected.
SKF6310-2RS1 C350 × 110 × 27mm
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$64.03
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Specifications
| Bore diameter (d) | 50 mm |
| Outer diameter (D) | 110 mm |
| Width (B) | 27 mm |
| Dynamic load rating (C) | 65 kN |
| Static load rating (C₀) | 38 kN |
| Weight | 1070 g |
| Max speed (grease) | 8,500 rpm |
| Max speed (oil) | 13,000 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 | 6310-2RS1 C3 | 2RS | C3 | Verified |
| FAG | 6310-2RSR-C3 | 2RS | C3 | Probable |
| NSK | 6310DDU C3E | 2RS | C3 | Current |
| NTN | 6310LLU/C3 | 2RS | C3 | Verified |
| Timken | 6310-2RS 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
Medium Series — Common Applications
- Heavy-duty electric motors
- Industrial pumps
- Conveyor systems
- Mining equipment
- Construction machinery
- Agricultural equipment
- Heavy gearboxes
- Compressors
- Paper and steel mills
- Vibrating screens
Heavy industryMiningConstructionPaper & pulpSteel
Large (50mm bore) — Typical Uses
- Large electric motors (50+ HP)
- Industrial gearboxes
- Heavy-duty conveyor systems
- Mining and construction equipment
- Paper mill machinery
- Steel rolling mills
- Large compressors
- Wind turbine components
Other Variants Available
Same bearing geometry — different seal and clearance configurations.
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| 6310 | Open (No Seal) | CN |
| 6310 C3 | Open (No Seal) | C3 |
| 6310-2Z | ZZ | CN |
| 6310-2Z C3 | ZZ | C3 |
| 6310-2RS1 | 2RS | CN |
| 6310-2RS1 C3 | 2RS | C3 |