What is the equivalent of a 6312ZZ bearing?

The 6312ZZ is a 60×130×31mm deep groove ball bearing with verified equivalents across multiple brands: FAG 6312-2ZR, NSK 6312ZZ, NTN 6312ZZ, Timken 6312-ZZ. All equivalents share the same bore, outer diameter, width, and load ratings.

What are the dimensions of a 6312ZZ bearing?

The 6312ZZ bearing has a bore diameter of 60mm, outer diameter of 130mm, and width of 31mm. It has a dynamic load rating of 85.2 kN, static load rating of 52 kN, and weighs 1240g. Maximum speed with grease lubrication is 7,000 rpm.

Can I replace a SKF 6312ZZ with a FAG equivalent?

Yes. SKF and FAG bearings with the same ISO designation are dimensionally interchangeable. The 6312ZZ (60×130×31mm) can be replaced with the equivalent FAG part number as long as the seal type (ZZ) and clearance class (CN) match. Always verify load ratings and speed limits for your specific application.

6312ZZ

ZZCNDeep Groove Ball BearingVerified matchMedium Series

Higher load capacity than the 6200 series for the same bore size. Used where heavier radial loads are expected.

60 × 130 × 31mm

Cr 85.2 kN / C₀r 52 kN

7,000 rpm (grease)

SKF6312-2Z60 × 130 × 31mm

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Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)	60 mm
Outer diameter (D)	130 mm
Width (B)	31 mm
Dynamic load rating (C)	85.2 kN
Static load rating (C₀)	52 kN
Weight	1240 g
Max speed (grease)	7,000 rpm
Max speed (oil)	11,000 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
SKF	6312-2Z	ZZ	CN	Verified
FAG	6312-2ZR	ZZ	CN	Probable
NSK	6312ZZ	ZZ	CN	Current
NTN	6312ZZ	ZZ	CN	Current
Timken	6312-ZZ	ZZ	CN	Verified

Legacy & Proprietary Numbers

SKF6312-2RS1/C3NSK6312C3ESTEYR6312-2Z/C3KOYO63122RSPEER6312-2RLDNTN6312LLURHP6312-2RSFBC6312PFLT6312NNWG6312.2ZZWZ6312-2RSFafnir312KMRC312-SSNR6312NFederal1312FFFEDERAL1312MGM6312NNew Departure88212FIAT621654HOOVER7312SASC1304315SCAN1304315SKF6312-2RSJEMNSK6312CMSTEYR6312-2ZNRKOYO6312DPEER6312-2RLD-C3NTN6312LURHP6312NFBC6312PP

Show all 102 cross-references

FLT6312NRNWG6312NZWZ6312-RSFafnir312KDMRC312-SFFSNR6312NRFederal1312SFFEDERAL1312FMGM6312ZNew Departure88512SKF6312-2Z/C3NSK6312DDUSTEYR6312C3KOYO6312DDPEER6312-C3NTN6312NRRHP6312NRFBC6312PSRFLT6312ZNWG6312ZZWZ6312-ZFafnir312KDDMRC312-SZZSNR6312ZSKF6312-2ZJEMNSK6312DDUCMSTEYR6312C4KOYO6312NRPEER6312-RLDNTN6312ZRHP6312RSFBC6312SRFLT6312ZNRNWG6312ZNZWZ6312-ZNSKF6312-2ZNRNSK6312DUSTEYR6312M1/C3KOYO6312RSPEER6312-ZDNTN6312ZNRRHP6312ZSKF6312/C3NSK6312DUC3ESTEYR6312NRKOYO6312ZPEER6312-ZZDSKF6312/C3VL0241NSK6312MSTEYR6312ZKOYO6312ZNRSKF6312/C4NSK6312NRSTEYR6312Z/C3SKF6312/C4S1NSK6312ZSTEYR6312ZNRSKF6312JEMNSK6312ZCMSKF6312M/C3NSK6312ZNRSKF6312M/C3VL0241SKF6312M/C4SKF6312NRSKF6312NRJEMSKF6312-RS1SKF6312-RSJEMSKF6312-ZSKF6312-Z/C3SKF6312-ZJEMSKF6312-ZNRSKF6312-ZNRJEM

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

Metal Shielded (ZZ / 2Z)

Metal shields on both sides. Moderate protection from dust and debris. Pre-lubricated with grease.

Avoid forHarsh environments with heavy moisture, chemicals, or fine dust ingress.

Examples

Electric motors
Fans and blowers
Power tools
HVAC 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
6312	Open (No Seal)	CN
6312 C3	Open (No Seal)	C3
6312-2Z	ZZ	CN
6312-2Z C3	ZZ	C3
6312-2RS1	2RS	CN
6312-2RS1 C3	2RS	C3

Related Bearings

Adjacent sizes and cross-series bearings from our catalog.