What is the equivalent of a 6307ZZ bearing?

The 6307ZZ is a 35×80×21mm deep groove ball bearing with verified equivalents across multiple brands: FAG 6307-2ZR, NSK 6307ZZ, NTN 6307ZZ, Timken 6307-ZZ. All equivalents share the same bore, outer diameter, width, and load ratings.

What are the dimensions of a 6307ZZ bearing?

The 6307ZZ bearing has a bore diameter of 35mm, outer diameter of 80mm, and width of 21mm. It has a dynamic load rating of 35.1 kN, static load rating of 19 kN, and weighs 444g. Maximum speed with grease lubrication is 12,000 rpm.

Can I replace a SKF 6307ZZ with a FAG equivalent?

Yes. SKF and FAG bearings with the same ISO designation are dimensionally interchangeable. The 6307ZZ (35×80×21mm) 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.

6307ZZ

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.

35 × 80 × 21mm

Cr 35.1 kN / C₀r 19 kN

12,000 rpm (grease)

SKF6307-2Z35 × 80 × 21mm

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Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)	35 mm
Outer diameter (D)	80 mm
Width (B)	21 mm
Dynamic load rating (C)	35.1 kN
Static load rating (C₀)	19 kN
Weight	444 g
Max speed (grease)	12,000 rpm
Max speed (oil)	19,000 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	6307-2Z	ZZ	CN	Verified
FAG	6307-2ZR	ZZ	CN	Probable
NSK	6307ZZ	ZZ	CN	Current
NTN	6307ZZ	ZZ	CN	Current
Timken	6307-ZZ	ZZ	CN	Probable

Legacy & Proprietary Numbers

SKF6307-2RSNSK6307C3EPEER6307-2RLDKOYO63072RSRHP6307-2RSFLT6307.2RSNTN6307LLNWG6307.2RSSNR6307ESTEYR6307-2GMGM6307.2RSZWZ6307-2RSFBC6307PFafnir307KMRC307-SFederal1307FFFEDERAL1307CGHOOVER7307MITS610077-0New Departure88207OPEL720001ZKL6307NALFA60117BUKH70171CITR6307ACFIAT73151FORD12005535ROVER130749SKF6307-2RS1/C3NSK6307CM

Show all 134 cross-references

PEER6307-2RLD-C3KOYO6307DRHP6307.2RSFLT6307NNTN6307LLUNWG6307.2ZSNR6307EESTEYR6307GMGM6307.2ZZWZ6307NFBC6307PPFafnir307KDMRC307-SFFFederal1307SFFEDERAL1307FHOOVER7307GMITS610077-1New Departure88507OPEL720011ZKL6307ZSKF6307-2RSJEMNSK6307DDPEER6307-2RLD-NR-C3KOYO6307DDRHP6307.2ZFLT6307NRNTN6307LUNWG6307NSNR6307NSTEYR6307NMGM6307NZWZ6307-RSFBC6307PSRFafnir307KDDMRC307-SZZSKF6307-2RSNRJEMNSK6307DDUPEER6307-C3KOYO6307NRHP6307NFLT6307RSNTN6307NRNWG6307RSSNR6307NJ30STEYR6307NRMGM6307RSZWZ6307-ZFBC6307SRSKF6307-2Z/C3NSK6307DDUC3EPEER6307-NRKOYO6307NRRHP6307NRFLT6307ZNTN6307NRC3NWG6307ZSNR6307NRSTEYR6307RSMGM6307ZZWZ6307-ZNSKF6307-2ZJEMNSK6307DDUCMPEER6307-NR-C3KOYO6307RSRHP6307RSFLT6307ZNRNTN6307ZNWG6307ZNSNR6307ZSTEYR6307ZSKF6307/C2NSK6307DUPEER6307-ZDKOYO6307ZRHP6307ZSKF6307/C3NSK6307MPEER6307-ZD-C3KOYO6307ZNRSKF6307/C4NSK6307NPEER6307-ZZDSKF6307JNSK6307NRPEER6307-ZZD-C3SKF6307JEMNSK6307ZSKF6307MNSK6307ZC3ESKF6307M/C3NSK6307ZCMSKF6307NNSK6307ZNRSKF6307NRSKF6307NR/C3SKF6307NRJEMSKF6307-RSSKF6307-RS1SKF6307-RS1/C3SKF6307-RSJEMSKF6307-ZSKF6307-Z/C3SKF6307-ZJEMSKF6307-ZNR

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
6307	Open (No Seal)	CN
6307 C3	Open (No Seal)	C3
6307-2Z	ZZ	CN
6307-2Z C3	ZZ	C3
6307-2RS1	2RS	CN
6307-2RS1 C3	2RS	C3

Related Bearings

Adjacent sizes and cross-series bearings from our catalog.