NU305
Medium cross-section cylindrical roller bearings (NU-type) with higher load capacity than NU200 for the same bore size. Free axial float in both directions. Used where heavier radial loads require a more robust bearing.
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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) | 17 mm |
| Dynamic load rating (C) | 31.5 kN |
| Static load rating (C₀) | 27.7 kN |
| Weight | 240 g |
| Max speed (grease) | 9,000 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 |
|---|---|---|---|---|
| FAG | NU305-E-TVP2 | Open | CN | Probable |
| NSK | NU305W | Open | CN | Probable |
| NTN | NU305ET2 | Open | CN | Probable |
| SKF | NU 305 ECP | Open | CN | Probable |
| Timken | NU305EM | Open | CN | Probable |
Legacy & Proprietary Numbers
Technical Details & Applications
Specification variations and common equipment types.
Internal Clearance
Standard radial internal clearance. Suitable for most applications under normal operating conditions.
Seal Type
No seals or shields. Allows external lubrication and cooling. Lowest friction, highest speed capability.
- Machine tool spindles
- Gearboxes with oil bath lubrication
- High-speed precision equipment
Where This Bearing Is Used
Alternative Parts
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Related Bearings
Adjacent sizes and cross-series bearings from our catalog.