What is the equivalent of a 73151 bearing?

The 73151 is a 35×80×21mm angular contact ball bearing with verified equivalents across multiple brands: FAG 6307, NSK 6307, NTN 6307, Timken 6307. All equivalents share the same bore, outer diameter, width, and load ratings.

What are the dimensions of a 73151 bearing?

The 73151 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 73151 with a FAG equivalent?

Yes. SKF and FAG bearings with the same ISO designation are dimensionally interchangeable. The 73151 (35×80×21mm) can be replaced with the equivalent FAG 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.

73151

OpenCNDeep Groove Ball BearingAngular Contact Medium Series

Heavier load capacity than 7200. Used in gearboxes, electric motors, and industrial equipment requiring axial load support.

SKF630735 × 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)	4,760 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
SKF	6307	Open	CN	Probable
FAG	6307	Open	CN	Probable
NSK	6307	Open	CN	Verified
NTN	6307	Open	CN	Probable
Timken	6307	Open	CN	Probable

Legacy & Proprietary Numbers

SKF6307-2RSNSK6307C3EPEER6307-2RLDKOYO63072RSRHP6307-2RSSTEYR6307-2GFLT6307.2RSNTN6307LLNWG6307.2RSSNR6307EZWZ6307-2RSMGM6307.2RSFBC6307PFafnir307KMRC307-SFederal1307FFFEDERAL1307CGHOOVER7307MITS610077-0New Departure88207OPEL720001ZKL6307NALFA60117BUKH70171CITR6307ACFIAT73151FORD12005535ROVER130749SKF6307-2RS1NSK6307CM

Show all 139 cross-references

PEER6307-2RLD-C3KOYO6307DRHP6307.2RSSTEYR6307-2ZFLT6307NNTN6307LLUNWG6307.2ZSNR6307EEZWZ6307-2ZMGM6307.2ZFBC6307PPFafnir307KDMRC307-SFFFederal1307SFFEDERAL1307FHOOVER7307GMITS610077-1New Departure88507OPEL720011ZKL6307ZSKF6307-2RS1/C3NSK6307DDPEER6307-2RLD-NR-C3KOYO6307DDRHP6307-2ZSTEYR6307GFLT6307NRNTN6307LUNWG6307NSNR6307NZWZ6307NMGM6307NFBC6307PSRFafnir307KDDMRC307-SZZSKF6307-2RSJEMNSK6307DDUPEER6307-C3KOYO6307NRHP6307.2ZSTEYR6307NFLT6307RSNTN6307NRNWG6307RSSNR6307NJ30ZWZ6307-RSMGM6307RSFBC6307SRSKF6307-2RSNRJEMNSK6307DDUC3EPEER6307-NRKOYO6307NRRHP6307NSTEYR6307NRFLT6307ZNTN6307NRC3NWG6307ZSNR6307NRZWZ6307-ZMGM6307ZSKF6307-2ZNSK6307DDUCMPEER6307-NR-C3KOYO6307RSRHP6307NRSTEYR6307RSFLT6307ZNRNTN6307ZNWG6307ZNSNR6307ZZWZ6307-ZNSKF6307-2Z/C3NSK6307DUPEER6307-ZDKOYO6307ZRHP6307RSSTEYR6307ZSKF6307-2ZJEMNSK6307MPEER6307-ZD-C3KOYO6307ZNRRHP6307ZSKF6307/C2NSK6307NPEER6307-ZZDSKF6307/C3NSK6307NRPEER6307-ZZD-C3SKF6307/C4NSK6307ZSKF6307JNSK6307ZC3ESKF6307JEMNSK6307ZCMSKF6307MNSK6307ZNRSKF6307M/C3SKF6307NSKF6307NRSKF6307NR/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

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
7315 BEP	Open (No Seal)	CN
7315 BEP C3	Open (No Seal)	C3
7315 BE-2RZP	2RS	CN
7315 BE-2RZP C3	2RS	C3

Related Bearings

Adjacent sizes and cross-series bearings from our catalog.