What is the equivalent of a NU211W bearing?

The NU211W is a 55×100×21mm cylindrical roller bearing with verified equivalents across multiple brands: NSK NU211W, NTN NU211ET2, SKF NU 211 ECP, Timken NU211EM. All equivalents share the same bore, outer diameter, width, and load ratings.

What are the dimensions of a NU211W bearing?

The NU211W bearing has a bore diameter of 55mm, outer diameter of 100mm, and width of 21mm. It has a dynamic load rating of 58 kN, static load rating of 62.5 kN, and weighs 636g. Maximum speed with grease lubrication is 5,000 rpm.

Can I replace a FAG NU211W with a NSK equivalent?

Yes. FAG and NSK bearings with the same ISO designation are dimensionally interchangeable. The NU211W (55×100×21mm) 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.

NU211W

OpenCNCylindrical Roller BearingVerified matchCylindrical Roller — Light Series (NU)

Single row cylindrical roller bearings with ribs on the outer ring only. NU-type allows free axial float in both directions, making it ideal as the non-locating bearing in a pair. Same envelope as 6200 deep groove but with ~2x radial load capacity.

55 × 100 × 21mm

Open (no seal)

Cr 58 kN / C₀r 62.5 kN

5,000 rpm (grease)

FAGNU211-E-TVP255 × 100 × 21mm

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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)	100 mm
Width (B)	21 mm
Dynamic load rating (C)	58 kN
Static load rating (C₀)	62.5 kN
Weight	636 g
Max speed (grease)	5,000 rpm
Max speed (oil)	6,700 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
FAG	NU211-E-TVP2	Open	CN	Verified
NSK	NU211W	Open	CN	Current
NTN	NU211ET2	Open	CN	Verified
SKF	NU 211 ECP	Open	CN	Verified
Timken	NU211EM	Open	CN	Verified

Legacy & Proprietary Numbers

SKFNU211NTNNU211STEYRNU211E/JP1GPZ32211KOYONU211NSKNU211SNRNU211ZKLNU211SKFNU211ECJNTNNU211ESTEYRNU211E/TGP1SKFNU211ECMSKFNU211ECMA/P63SKFNU211ECM/C3SKFNU211ECML/P63HSKFNU211ECNP/C4SKFNU211ECPSKFNU211ECP/C3

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
NU 211 ECP	Open (No Seal)	CN
NU 211 ECP/C3	Open (No Seal)	C3

Related Bearings

Adjacent sizes and cross-series bearings from our catalog.