4T-387A-382A

OpenCNDeep Groove Ball BearingVerified match
Geometry100%
57.15 × 96.84 × 21mm
Sealing100%
Open (no seal)
Load rating100%
Cr 48.5 kN / C₀r 30 kN
Speed100%
3,000 rpm (grease)
NTN4T-387A/382A57.15 × 96.84 × 21mm
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$67.16
Partmatch price
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Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)57.15 mm
Outer diameter (D)96.84 mm
Width (B)21 mm
Dynamic load rating (C)48.5 kN
Static load rating (C₀)30 kN
Weight340 g
Max speed (grease)3,000 rpm
Max speed (oil)—
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PDF includes specs, dimensions, and cross-references for 4T-387A/382A.

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
NTN4T-387A/382AOpenCNEquivalent
Timken387A/382AOpenCNProbable
FAG382AOpenCNProbable
FAG387AOpenCNProbable
FAG387A/382AOpenCNProbable
Koyo382AOpenCNEquivalent
Koyo387AOpenCNEquivalent
Koyo387A/382AOpenCNEquivalent
NTN382AOpenCNEquivalent
NTN387AOpenCNEquivalent
SKF382AOpenCNEquivalent
SKF387AOpenCNEquivalent
SKF387A/382AOpenCNEquivalent
Timken382AOpenCNProbable
Timken387AOpenCNProbable

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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