3578

OpenCNDeep Groove Ball BearingVerified match
Geometry100%
44.45 × 87.31 × 30.16mm
Sealing100%
Open (no seal)
Load rating100%
Cr 50 kN / C₀r 31 kN
Speed100%
3,000 rpm (grease)
Koyo3578/352544.45 × 87.31 × 30.16mm
In stock
$61.76
Partmatch price
  • Ships from EU warehouse
  • Ships within 2–3 business days
  • Order 5+ for 5% off · 10+ for 10% off
Secure checkout
Verified supplier
30-day returns
VisaMastercardAmex

Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)44.45 mm
Outer diameter (D)87.31 mm
Width (B)30.16 mm
Dynamic load rating (C)50 kN
Static load rating (C₀)31 kN
Weight430 g
Max speed (grease)3,000 rpm
Max speed (oil)4,500 rpm
→ How to read a bearing part number

Get a PDF spec sheet

Save, print, or forward to procurement. We'll email it to you and download immediately.

PDF includes specs, dimensions, and cross-references for 3578/3525.

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
Koyo3578/3525OpenCNEquivalent
NTN4T-3578/3525OpenCNEquivalent
Timken3578/3525OpenCNProbable
FAG3525OpenCNProbable
FAG3578OpenCNCurrent
FAG3578/3525OpenCNProbable
Koyo3525OpenCNEquivalent
Koyo3578OpenCNCurrent
NTN3525OpenCNEquivalent
NTN3578OpenCNCurrent
SKF3525OpenCNEquivalent
SKF3578OpenCNCurrent
SKF3578/3525OpenCNEquivalent
Timken3525OpenCNProbable
Timken3578OpenCNCurrent

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
3578/3525Open (No Seal)CN