25580

OpenCNDeep Groove Ball BearingVerified match
Geometry100%
44.45 × 82.93 × 27.78mm
Sealing100%
Open (no seal)
Load rating100%
Cr 52 kN / C₀r 32.5 kN
Speed100%
3,000 rpm (grease)
Koyo25580/2552044.45 × 82.93 × 27.78mm
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$58.67
Partmatch price
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Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)44.45 mm
Outer diameter (D)82.93 mm
Width (B)27.78 mm
Dynamic load rating (C)52 kN
Static load rating (C₀)32.5 kN
Weight420 g
Max speed (grease)3,000 rpm
Max speed (oil)4,500 rpm
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PDF includes specs, dimensions, and cross-references for 25580/25520.

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

BrandPart NumberSealClearanceStatus
Koyo25580/25520OpenCNEquivalent
NTN4T-25580/25520OpenCNEquivalent
Timken25580/25520OpenCNProbable
FAG25520OpenCNProbable
FAG25580OpenCNCurrent
FAG25580/25520OpenCNProbable
Koyo25520OpenCNEquivalent
Koyo25580OpenCNCurrent
NTN25520OpenCNEquivalent
NTN25580OpenCNCurrent
SKF25520OpenCNEquivalent
SKF25580OpenCNCurrent
SKF25580/25520OpenCNEquivalent
Timken25520OpenCNProbable
Timken25580OpenCNCurrent

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 NumberSeal TypeClearance
25580/25520Open (No Seal)CN