What is the equivalent of a 6210DDU bearing?

The 6210DDU is a 50×90×20mm deep groove ball bearing with verified equivalents across multiple brands: FAG 6210-2RSR, NSK 6210DDU, NTN 6210LLU, Timken 6210-2RS. All equivalents share the same bore, outer diameter, width, and load ratings.

What are the dimensions of a 6210DDU bearing?

The 6210DDU bearing has a bore diameter of 50mm, outer diameter of 90mm, and width of 20mm. It has a dynamic load rating of 37.1 kN, static load rating of 23.2 kN, and weighs 442g. Maximum speed with grease lubrication is 10,000 rpm.

Can I replace a SKF 6210DDU with a FAG equivalent?

Yes. SKF and FAG bearings with the same ISO designation are dimensionally interchangeable. The 6210DDU (50×90×20mm) can be replaced with the equivalent FAG part number as long as the seal type (2RS) and clearance class (CN) match. Always verify load ratings and speed limits for your specific application.

6210DDU

2RSCNDeep Groove Ball BearingVerified matchLight Series

The most widely used bearing series. Versatile, good balance of load capacity and speed. The go-to choice for general-purpose applications.

50 × 90 × 20mm

Rubber sealed → 2RS1 / 2RSR / DDU / LLU

Cr 37.1 kN / C₀r 23.2 kN

10,000 rpm (grease)

SKF6210-2RS150 × 90 × 20mm

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Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)	50 mm
Outer diameter (D)	90 mm
Width (B)	20 mm
Dynamic load rating (C)	37.1 kN
Static load rating (C₀)	23.2 kN
Weight	442 g
Max speed (grease)	10,000 rpm
Max speed (oil)	15,000 rpm

→ What does 2RS mean on a bearing?→ How to read a bearing part number

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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
SKF	6210-2RS1	2RS	CN	Verified
FAG	6210-2RSR	2RS	CN	Probable
NSK	6210DDU	2RS	CN	Current
NTN	6210LLU	2RS	CN	Verified
Timken	6210-2RS	2RS	CN	Probable

Legacy & Proprietary Numbers

SKF6210-2RS1/C2NSK6210C3ESTEYR6210-2GKOYO62102RSFLT6210.2RSMGM6210.2RSNACHI6210.2NSLNTN6210LLNWG6210.2RSPEER6210-2RLDSNR6210EFEDERAL1210FBC6210PRHP6210NFafnir210KMRC210-SZWZ6210NFederal1210FFHOOVER7210New Departure77210ZKL6210NBOHL60062100CONT60094IVECO60167665KBC6210DDSOME732008012SKF6210-2RS1/C3NSK6210CMSTEYR6210-2RS1NRKOYO6210C3

Show all 141 cross-references

FLT6210.2RSNRMGM6210.2ZNACHI6210NRNTN6210LUNWG6210.2ZPEER6210-C3SNR6210EEFEDERAL1210CGFBC6210PPRHP6210NRFafnir210KDMRC210-SFFZWZ6210-ZFederal1210SFHOOVER7210GNew Departure77510ZKL6210ZSKF6210-2RS1/C3GJNNSK6210DDSTEYR6210-2Z/C3KOYO6210DFLT6210NMGM6210NNACHI6210NSLNTN6210NRNWG6210NPEER6210-RLDSNR6210NFEDERAL1210FFBC6210PSRRHP6210RSFafnir210KDDMRC210-SZZZWZ6210-ZNSKF6210-2RS1/C3HT51NSK6210DDUC3ESTEYR6210A/C3KOYO6210DDFLT6210NRMGM6210RSNACHI6210ZNTN6210ZNWG6210RSPEER6210-ZDSNR6210NRFEDERAL1210FFFBC6210SRRHP6210ZSKF6210-2RS1NRNSK6210DDUCMSTEYR6210C4KOYO6210NRFLT6210RSMGM6210ZNACHI6210ZNRNTN6210ZNRNWG6210ZPEER6210-ZD-C3SNR6210ZFEDERAL1210GFSKF6210-2RSJEMNSK6210DDUNRSTEYR6210GKOYO6210RSFLT6210ZMGM6210ZNNACHI6210ZZNTN6210ZZNWG6210ZNPEER6210-ZZDSNR6210ZZSKF6210-2RSNRNSK6210DUSTEYR6210NKOYO6210ZFLT6210ZNRSKF6210-2Z/C3NSK6210MSTEYR6210NRKOYO6210ZNRFLT6210ZZSKF6210-2Z/C3WTNSK6210NSTEYR6210ZKOYO6210ZZSKF6210-2ZJEMNSK6210NRSTEYR6210Z/C3SKF6210/C2NSK6210ZSTEYR6210ZNRSKF6210/C3NSK6210ZC3ESKF6210/C4NSK6210ZCMSKF6210JEMNSK6210ZNRSKF6210MA/C3NSK6210ZZSKF6210NSKF6210NRSKF6210NR/C3SKF6210NRJEMSKF6210-RSSKF6210-RS1SKF6210-RS1/C3SKF6210-RSJEMSKF6210-ZSKF6210-Z/C3SKF6210-ZJEMSKF6210-ZNR

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

Rubber Sealed (2RS)

Rubber contact seals on both sides. Superior protection from contaminants. Pre-lubricated, maintenance-free.

Avoid forVery high-speed applications (seal friction limits top speed). Environments exceeding 110°C.

Examples

Agricultural machinery
Conveyor rollers
Automotive components
Outdoor equipment
Washing machines

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
6210	Open (No Seal)	CN
6210 C3	Open (No Seal)	C3
6210-2Z	ZZ	CN
6210-2Z C3	ZZ	C3
6210-2RS1	2RS	CN
6210-2RS1 C3	2RS	C3

Related Bearings

Adjacent sizes and cross-series bearings from our catalog.