What is the equivalent of a 6018 bearing?

The 6018 is a 90×140×24mm deep groove ball bearing with verified equivalents across multiple brands: NSK 6018, NTN 6018, SKF 6018, Timken 6018. All equivalents share the same bore, outer diameter, width, and load ratings.

What are the dimensions of a 6018 bearing?

The 6018 bearing has a bore diameter of 90mm, outer diameter of 140mm, and width of 24mm. It has a dynamic load rating of 55.3 kN, static load rating of 46.5 kN, and weighs 1080g. Maximum speed with grease lubrication is 5,600 rpm.

Can I replace a FAG 6018 with a NSK equivalent?

Yes. FAG and NSK bearings with the same ISO designation are dimensionally interchangeable. The 6018 (90×140×24mm) 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.

6018

OpenCNDeep Groove Ball BearingVerified matchExtra Light Series

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

90 × 140 × 24mm

Open (no seal)

Cr 55.3 kN / C₀r 46.5 kN

5,600 rpm (grease)

FAG6018

Pricing not yet available for this part.

Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)	90 mm
Outer diameter (D)	140 mm
Width (B)	24 mm
Dynamic load rating (C)	55.3 kN
Static load rating (C₀)	46.5 kN
Weight	1080 g
Max speed (grease)	5,600 rpm
Max speed (oil)	7,000 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	6018	Open	CN	Current
NSK	6018	Open	CN	Current
NTN	6018	Open	CN	Current
SKF	6018	Open	CN	Current
Timken	6018	Open	CN	Current

Legacy & Proprietary Numbers

SKF6018-2RS1/C3NSK6018CMPEER6018-2RLDKOYO60182RSSTEYR6018-2RS1/C3NACHI6018NRZWZ6018-2RSFLT6018NNTN6018ZRHP6018-2RSSNR6018NSKF6018-2Z/C3NSK6018DDUPEER6018-C3KOYO6018NRSTEYR6018-2Z/C3NACHI6018ZZWZ6018NFLT6018NRSKF6018-2ZJEMNSK6018DDUCMPEER6018-ZDKOYO6018ZSTEYR6018A/C3NACHI6018ZZZWZ6018-ZSKF6018/C2NSK6018NRPEER6018-ZZDKOYO6018ZZ

Show all 39 cross-references

STEYR6018ZSKF6018/C3NSK6018ZPEER6018-ZZD-C3SKF6018/C4SKF6018JEMSKF6018M/C4SKF6018NRSKF6018-Z

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
6018 C3	Open (No Seal)	C3
6018-2Z	ZZ	CN
6018-2Z C3	ZZ	C3
6018-2RS1	2RS	CN
6018-2RS1 C3	2RS	C3

Related Bearings

Adjacent sizes and cross-series bearings from our catalog.