M12649

OpenCNDeep Groove Ball BearingVerified match
Geometry100%
21.43 × 50 × 17.46mm
Sealing100%
Open (no seal)
Load rating100%
Cr 17.2 kN / C₀r 9.2 kN
Speed100%
3,000 rpm (grease)
NTN4T-M12649/M1261021.43 × 50 × 17.46mm
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$16.84
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Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)21.43 mm
Outer diameter (D)50 mm
Width (B)17.46 mm
Dynamic load rating (C)17.2 kN
Static load rating (C₀)9.2 kN
Weight95 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 4T-M12649/M12610.

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-M12649/M12610OpenCNEquivalent
KoyoM12649/M12610OpenCNEquivalent
TimkenM12649/M12610OpenCNProbable
FAGM12610OpenCNProbable
FAGM12649OpenCNCurrent
FAGM12649/M12610OpenCNProbable
KoyoM12610OpenCNEquivalent
KoyoM12649OpenCNCurrent
NTNM12610OpenCNEquivalent
NTNM12649OpenCNCurrent
SKFM12610OpenCNEquivalent
SKFM12649OpenCNCurrent
SKFM12649/M12610OpenCNEquivalent
TimkenM12610OpenCNProbable
TimkenM12649OpenCNCurrent

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
M12649/M12610Open (No Seal)CN