1303
Heavier self-aligning ball bearings with higher load capacity than 1200 series. For applications with significant misalignment and moderate radial loads.
Geometry100%
17 × 48 × 14mm
Sealing100%
Open (no seal)
Load rating100%
Cr 9.9 kN / C₀r 3.8 kN
Speed100%
11,900 rpm (grease)
SKF1303 ETN917 × 48 × 14mm
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$42.98
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Match Details
The specifications and details for why this match is correct.
Specifications
| Bore diameter (d) | 17 mm |
| Outer diameter (D) | 48 mm |
| Width (B) | 14 mm |
| Dynamic load rating (C) | 9.9 kN |
| Static load rating (C₀) | 3.8 kN |
| Weight | 95 g |
| Max speed (grease) | 11,900 rpm |
| Max speed (oil) | 15,300 rpm |
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Why This Match Is Correct
✓Exact dimensional match (bore, OD, width)
✓Load ratings within tolerance
✓Seal type verified via manufacturer tables
✓Speed rating compatible
Cross-References
Every way this part is identified across brands and catalogs.
Tier-1 Brand Equivalents
Legacy & Proprietary Numbers
MRC1303EVerified — Schaeffler Brand Interchange · last checked 4 weeks ago · perfect interchange
Technical Details & Applications
Specification variations and common equipment types.
Internal Clearance
Normal Clearance (CN)
Standard radial internal clearance. Suitable for most applications under normal operating conditions.
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.
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
Electric motorsPumps and compressorsConveyor rollersAgricultural machineryFans and blowersGearboxesPower transmission equipmentWashing machinesPrinting pressesHVACAutomotive alternators and A/C compressors
Alternative Parts
Options if this exact part isn't what you need.
Same Geometry, Different Configuration
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| 1303 ETN9 | Open (No Seal) | CN |
| 1303 ETN9 C3 | Open (No Seal) | C3 |
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