What is the equivalent of a 6.3020.0 bearing?

The 6.3020.0 is a 50×110×27mm ball bearing with verified equivalents across multiple brands: NSK 7310A, Timken 7310, FAG 7310-B-TVP, SKF 7310 BEP. All equivalents share the same bore, outer diameter, width, and load ratings.

What are the dimensions of a 6.3020.0 bearing?

The 6.3020.0 bearing has a bore diameter of 50mm, outer diameter of 110mm, and width of 27mm. It has a dynamic load rating of 68.2 kN, static load rating of 47.9 kN, and weighs 1040g. Maximum speed with grease lubrication is 6,000 rpm.

Can I replace a NTN 6.3020.0 with a NSK equivalent?

Yes. NTN and NSK bearings with the same ISO designation are dimensionally interchangeable. The 6.3020.0 (50×110×27mm) can be replaced with the equivalent NSK part number as long as the seal type (open) and clearance class (CN) match. Always verify load ratings and speed limits for your specific application.

6.3020.0

OpenCNAngular Contact Ball BearingVerified match

50 × 110 × 27mm

Open (no seal)

Cr 68.2 kN / C₀r 47.9 kN

6,000 rpm (grease)

NTN7310

Pricing not yet available for this part.

Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)	50 mm
Outer diameter (D)	110 mm
Width (B)	27 mm
Dynamic load rating (C)	68.2 kN
Static load rating (C₀)	47.9 kN
Weight	1040 g
Max speed (grease)	6,000 rpm
Max speed (oil)	—

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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

Brand	Part Number	Seal	Clearance	Status
NTN	7310	Open	CN	Probable
NSK	7310A	Open	CN	Verified
Timken	7310	Open	CN	Verified
FAG	7310-B-TVP	Open	CN	Probable
SKF	7310 BEP	Open	CN	Verified

Legacy & Proprietary Numbers

SKF7310BMRC7310PNSK7310BRHP7310BETNFAFNIR7310WKOYO7310BAERZ120463/2FLT7310BKASE6.3020.0ND30310NTN7310BSNR7310BSKF7310BECBFMRC7310PDUNSK7310BEAT85SUCNBRHP7310BETNUFAFNIR7310WNKOYO7310BGSKF7310BECBJMRC7310PJNSK7310BGRHP7310BMBSKF7310BECBMMRC7310PJDENSK7310BWRHP7310BMBUSKF7310BECBPMRC7310PJDUNSK7310BWGSKF7310BECBY

Show all 43 cross-references

SKF7310BECCMSKF7310BEGAFSKF7310BEGAMSKF7310BEGAPSKF7310BEGAYSKF7310BEGBPSKF7310BEGBYSKF7310BEGCYSKF7310BEN1GAFSKF7310BEPSKF7310BEYSKF7310BGSKF7310BGY

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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