What is the equivalent of a 5121197 bearing?

The 5121197 is a 90×160×30mm thrust ball bearing with verified equivalents across multiple brands: NSK 6218, NTN 6218, SKF 6218, Timken 6218. All equivalents share the same bore, outer diameter, width, and load ratings.

What are the dimensions of a 5121197 bearing?

The 5121197 bearing has a bore diameter of 90mm, outer diameter of 160mm, and width of 30mm. It has a dynamic load rating of 95.6 kN, static load rating of 67 kN, and weighs 1620g. Maximum speed with grease lubrication is 4,800 rpm.

Can I replace a FAG 5121197 with a NSK equivalent?

Yes. FAG and NSK bearings with the same ISO designation are dimensionally interchangeable. The 5121197 (90×160×30mm) 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.

5121197

OpenCNDeep Groove Ball BearingDouble Direction Thrust

Double direction thrust ball bearings for axial loads in both directions. Used where bidirectional axial loads must be supported.

FAG6218

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)	160 mm
Width (B)	30 mm
Dynamic load rating (C)	95.6 kN
Static load rating (C₀)	67 kN
Weight	1620 g
Max speed (grease)	4,800 rpm
Max speed (oil)	3,655 rpm

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Cross-References

Every way this part is identified across brands and catalogs.

Tier-1 Brand Equivalents

Brand	Part Number	Seal	Clearance	Status
FAG	6218	Open	CN	Probable
NSK	6218	Open	CN	Probable
NTN	6218	Open	CN	Probable
SKF	6218	Open	CN	Probable
Timken	6218	Open	CN	Probable

Legacy & Proprietary Numbers

SKF6218-2RS1STEYR6218-2RS1NSK6218C3EPEER6218-2RLDRHP6218-2RSKOYO62182RSZWZ6218-2RSFafnir218KFEDERAL1218FLT6218NMRC218-SNACHI6218.2NSFederal1218FFNew Departure77218SNR6218NFBC6218SRHOOVER7218MGM6218NNTN6218NRSKC5121197SKF6218-2RS1/C2STEYR6218-2RS1/C3NSK6218CMPEER6218-C3RHP6218-2ZKOYO6218DDZWZ6218-2ZFafnir218KDFEDERAL1218FFLT6218NR

Show all 80 cross-references

MRC218-SFFNACHI6218NRFederal1218SFNew Departure77518SNR6218NRSKF6218-2RS1/C3STEYR6218-2ZNSK6218DDUPEER6218-ZDRHP6218NKOYO6218NRZWZ6218NFafnir218KDDFEDERAL1218FFFLT6218ZMRC218-SZZNACHI6218ZSKF6218-2RSJEMSTEYR6218-2Z/C3NSK6218DDUCMPEER6218-ZZDRHP6218NRKOYO6218ZZWZ6218-ZSKF6218-2ZSTEYR6218C3NSK6218MPEER6218-ZZD-C3RHP6218ZSKF6218-2Z/C3STEYR6218C4NSK6218NRSKF6218-2ZJEMSTEYR6218M1/C4NSK6218ZSKF6218/C3STEYR6218NRSKF6218/C3VL0241STEYR6218ZSKF6218/C4SKF6218/C4S1SKF6218JEMSKF6218M4/C4SKF6218M/C3VL0241SKF6218M/C3VL0244SKF6218M/C4SKF6218NRSKF6218-ZSKF6218-Z/C3SKF6218-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

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
51211	Open (No Seal)	CN

Related Bearings

Adjacent sizes and cross-series bearings from our catalog.