What is the equivalent of a 7308 bearing?

The 7308 is a 40×90×23mm angular contact ball bearing with verified equivalents across multiple brands: NSK 7308A, Timken 7308, FAG 7308-B-TVP, SKF 7308 BEP. All equivalents share the same bore, outer diameter, width, and load ratings.

What are the dimensions of a 7308 bearing?

The 7308 bearing has a bore diameter of 40mm, outer diameter of 90mm, and width of 23mm. It has a dynamic load rating of 42.2 kN, static load rating of 27.7 kN, and weighs 611g. Maximum speed with grease lubrication is 7,400 rpm.

Can I replace a NTN 7308 with a NSK equivalent?

Yes. NTN and NSK bearings with the same ISO designation are dimensionally interchangeable. The 7308 (40×90×23mm) 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.

7308

OpenCNAngular Contact Ball BearingVerified matchAngular Contact Medium Series

Heavier load capacity than 7200. Used in gearboxes, electric motors, and industrial equipment requiring axial load support.

40 × 90 × 23mm

Open (no seal)

Cr 42.2 kN / C₀r 27.7 kN

7,400 rpm (grease)

NTN7308

Pricing not yet available for this part.

Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)	40 mm
Outer diameter (D)	90 mm
Width (B)	23 mm
Dynamic load rating (C)	42.2 kN
Static load rating (C₀)	27.7 kN
Weight	611 g
Max speed (grease)	7,400 rpm
Max speed (oil)	9,900 rpm

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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	7308	Open	CN	Current
NSK	7308A	Open	CN	Verified
Timken	7308	Open	CN	Current
FAG	7308-B-TVP	Open	CN	Verified
SKF	7308 BEP	Open	CN	Verified

Legacy & Proprietary Numbers

SKF7308BNSK7308BKOYO7308BRHP7308BETNFLT7308BND30308NTN7308BSNR7308BSTEYR7308BEGVA/MP1SKF7308BECAPNSK7308BEAT85SUCNBKOYO7308BGRHP7308BETNUSKF7308BECBJNSK7308BGSKF7308BECBJ/C24NSK7308BWSKF7308BECBMSKF7308BECBPSKF7308BECBYSKF7308BECCMSKF7308BECCYSKF7308BEGAFSKF7308BEGAMSKF7308BEGAPSKF7308BEGBMSKF7308BEGBPSKF7308BEGBYSKF7308BEGJ/C24SKF7308BEM1

Show all 32 cross-references

SKF7308BEPSKF7308BEY

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 Number	Seal Type	Clearance
7308 BEP	Open (No Seal)	CN
7308 BEP C3	Open (No Seal)	C3
7308 BE-2RZP	2RS	CN
7308 BE-2RZP C3	2RS	C3

Related Bearings

Adjacent sizes and cross-series bearings from our catalog.