What is the equivalent of a 6011DDU bearing?

The 6011DDU is a 55×90×18mm deep groove ball bearing with verified equivalents across multiple brands: SKF 6011-2RS1, FAG 6011-2RSR, NTN 6011LLU, Timken 6011-2RS. All equivalents share the same bore, outer diameter, width, and load ratings.

What are the dimensions of a 6011DDU bearing?

The 6011DDU bearing has a bore diameter of 55mm, outer diameter of 90mm, and width of 18mm. It has a dynamic load rating of 29.6 kN, static load rating of 21.2 kN, and weighs 371g. Maximum speed with grease lubrication is 10,000 rpm.

Can I replace a NSK 6011DDU with a SKF equivalent?

Yes. NSK and SKF bearings with the same ISO designation are dimensionally interchangeable. The 6011DDU (55×90×18mm) can be replaced with the equivalent SKF 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.

6011DDU

2RSCNDeep Groove Ball BearingVerified matchExtra Light Series

Compact bearings for space-constrained applications. Lower load capacity but higher speed ratings.

55 × 90 × 18mm

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

Cr 29.6 kN / C₀r 21.2 kN

10,000 rpm (grease)

NSK6011DDU55 × 90 × 18mm

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Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)	55 mm
Outer diameter (D)	90 mm
Width (B)	18 mm
Dynamic load rating (C)	29.6 kN
Static load rating (C₀)	21.2 kN
Weight	371 g
Max speed (grease)	10,000 rpm
Max speed (oil)	16,000 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
NSK	6011DDU	2RS	CN	Current
SKF	6011-2RS1	2RS	CN	Verified
FAG	6011-2RSR	2RS	CN	Probable
NTN	6011LLU	2RS	CN	Verified
Timken	6011-2RS	2RS	CN	Verified

Legacy & Proprietary Numbers

SKF6011-2RS1/C3PEER6011-2RLDNSK6011CMFLT6011.2RSSNR6011EKOYO60112RSSTEYR6011A/2Z/C3NTN6011LUNWG6011.2ZGPZ60111NACHI6011ZSASC131257ZWZ6011-ZSKF6011-2RSJEMPEER6011-2RLD-C3NSK6011DDUCMFLT6011RSSNR6011EEKOYO6011RSSTEYR6011RS1NTN6011ZNWG6011ZSKF6011-2Z/C3PEER6011-C3NSK6011DUFLT6011ZSNR6011J30KOYO6011ZSTEYR6011ZSKF6011-2ZJEM

Show all 45 cross-references

PEER6011-ZDNSK6011MFLT6011ZZSNR6011ZSKF6011/C3PEER6011-ZZDNSK6011ZSKF6011/C4PEER6011-ZZD-C3SKF6011JEMSKF6011-RSSKF6011-RS1SKF6011-RS1/C4SKF6011-ZSKF6011-ZJEM

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
6011	Open (No Seal)	CN
6011 C3	Open (No Seal)	C3
6011-2Z	ZZ	CN
6011-2Z C3	ZZ	C3
6011-2RS1	2RS	CN
6011-2RS1 C3	2RS	C3

Related Bearings

Adjacent sizes and cross-series bearings from our catalog.