What is the equivalent of a 7203A bearing?

The 7203A is a 17×40×12mm angular contact ball bearing with verified equivalents across multiple brands: NSK 7203A, Timken 7203, FAG 7203-B-TVP, SKF 7203 BEP. All equivalents share the same bore, outer diameter, width, and load ratings.

What are the dimensions of a 7203A bearing?

The 7203A bearing has a bore diameter of 17mm, outer diameter of 40mm, and width of 12mm. It has a dynamic load rating of 9.93 kN, static load rating of 5.54 kN, and weighs 64g. Maximum speed with grease lubrication is 17,000 rpm.

Can I replace a NTN 7203A with a NSK equivalent?

Yes. NTN and NSK bearings with the same ISO designation are dimensionally interchangeable. The 7203A (17×40×12mm) 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.

7203A

OpenCNAngular Contact Ball BearingVerified matchAngular Contact Light Series

For combined radial and axial loads. Higher rigidity than deep groove bearings. Machine tool spindles, pumps, automotive wheel hubs.

17 × 40 × 12mm

Open (no seal)

Cr 9.93 kN / C₀r 5.54 kN

17,000 rpm (grease)

NTN7203

Pricing not yet available for this part.

Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)	17 mm
Outer diameter (D)	40 mm
Width (B)	12 mm
Dynamic load rating (C)	9.93 kN
Static load rating (C₀)	5.54 kN
Weight	64 g
Max speed (grease)	17,000 rpm
Max speed (oil)	22,000 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.

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	7203	Open	CN	Verified
NSK	7203A	Open	CN	Current
Timken	7203	Open	CN	Verified
FAG	7203-B-TVP	Open	CN	Verified
SKF	7203 BEP	Open	CN	Verified

Legacy & Proprietary Numbers

SKF7203BNSK7203BKOYO7203BRHP7203BETNFLT7203BND30203NTN7203BSNR7203BZKL7203BETNGSKF7203BECBMNSK7203BWKOYO7203BGRHP7203BETNUSKF7203BECBPNSK7203BWGSKF7203BEGAPSKF7203BEP

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
7203 BEP	Open (No Seal)	CN
7203 BEP C3	Open (No Seal)	C3
7203 BE-2RZP	2RS	CN
7203 BE-2RZP C3	2RS	C3

Related Bearings

Adjacent sizes and cross-series bearings from our catalog.