30315
Medium series tapered roller bearings with higher load capacity than 302xx for the same bore size. Used where heavier loads demand a more robust bearing cross-section.
Timken3030525 × 62 × 18.25mm
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$22.39
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Match Details
The specifications and details for why this match is correct.
Specifications
| Bore diameter (d) | 25 mm |
| Outer diameter (D) | 62 mm |
| Width (B) | 18.25 mm |
| Dynamic load rating (C) | 27 kN |
| Static load rating (C₀) | 14.8 kN |
| Weight | 166 g |
| Max speed (grease) | 7,200 rpm |
| Max speed (oil) | — |
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Cross-References
Every way this part is identified across brands and catalogs.
Tier-1 Brand Equivalents
| Brand | Part Number | Seal | Clearance | Status |
|---|---|---|---|---|
| Timken | 30305 | Open | CN | Probable |
| NSK | HR30305J | Open | CN | Probable |
| NTN | 4T-30305 | Open | CN | Probable |
| SKF | 30305 J2/Q | Open | CN | Probable |
| FAG | 30305-XL | Open | CN | Probable |
Legacy & Proprietary Numbers
GPZ7305Verified — Schaeffler Brand Interchange · last checked last month · 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
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