What is the equivalent of a 7311G bearing?

The 7311G is a 55×120×29mm angular contact ball bearing with verified equivalents across multiple brands: FAG 6311-2ZR, NSK 6311ZZ, NTN 6311ZZ, Timken 6311-ZZ. All equivalents share the same bore, outer diameter, width, and load ratings.

What are the dimensions of a 7311G bearing?

The 7311G bearing has a bore diameter of 55mm, outer diameter of 120mm, and width of 29mm. It has a dynamic load rating of 74.1 kN, static load rating of 45 kN, and weighs 1340g. Maximum speed with grease lubrication is 8,000 rpm.

Can I replace a SKF 7311G with a FAG equivalent?

Yes. SKF and FAG bearings with the same ISO designation are dimensionally interchangeable. The 7311G (55×120×29mm) 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.

7311G

ZZCNDeep Groove Ball BearingAngular Contact Medium Series

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

SKF6311-2Z55 × 120 × 29mm

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Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)	55 mm
Outer diameter (D)	120 mm
Width (B)	29 mm
Dynamic load rating (C)	74.1 kN
Static load rating (C₀)	45 kN
Weight	1340 g
Max speed (grease)	8,000 rpm
Max speed (oil)	6,375 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	6311-2Z	ZZ	CN	Probable
FAG	6311-2ZR	ZZ	CN	Probable
NSK	6311ZZ	ZZ	CN	Verified
NTN	6311ZZ	ZZ	CN	Probable
Timken	6311-ZZ	ZZ	CN	Probable

Legacy & Proprietary Numbers

SKF6311NSK6311KOYO6311PEER6311STEYR6311NTN6311RHP6311FBC6311NWG6311SNR6311FEDERAL1311FLT6311MGM6311ZWZ6311-2RSFafnir311KMRC311-SFederal1311FFHOOVER7311New Departure88211CITR620214FAFNIR6311FIAT73012085ROLLWAY6311NRROVER13/17ZIL120-1701190ZKL6311SKF6311-2RS1NSK6311C3EKOYO63112RSPEER6311-2RLD

Show all 118 cross-references

STEYR6311A/2RS1/C3NTN6311LLURHP6311-2RSFBC6311PNWG6311.2ZSNR6311NFEDERAL1311FFLT6311NMGM6311.2ZZWZ6311NFafnir311KDMRC311-SFFFederal1311SFHOOVER7311GNew Departure88511SKF6311-2RS1/C3NSK6311CMKOYO6311C3PEER6311-2RLD-C3STEYR6311A/2Z/C3NTN6311LURHP6311NFBC6311PPNWG6311NSNR6311NJ30FEDERAL1311FFFLT6311NRMGM6311NZWZ6311-RSFafnir311KDDMRC311-SZZSKF6311-2RSJEMNSK6311DDUKOYO6311DPEER6311-C3STEYR6311C4NTN6311NRRHP6311NRFBC6311PSRNWG6311ZSNR6311NRFEDERAL1311GFFLT6311ZNRMGM6311ZZWZ6311-ZSKF6311-2Z/C3NSK6311DDUC3EKOYO6311DDPEER6311-ZDSTEYR6311NRNTN6311ZRHP6311RSFBC6311SRNWG6311ZNSNR6311ZSKF6311-2ZJEMNSK6311DUKOYO6311NPEER6311-ZD-C3STEYR6311ZNTN6311ZNRRHP6311ZSKF6311/C3NSK6311DUCMKOYO6311NRPEER6311-ZZDSTEYR6311Z/C3SKF6311/C4NSK6311MKOYO6311RSPEER6311-ZZD-C3STEYR6311ZNRSKF6311JEMNSK6311NKOYO6311ZSKF6311M/C3VL0241NSK6311ZKOYO6311ZNRSKF6311NRNSK6311ZCMSKF6311NRJEMNSK6311ZNRSKF6311-RS1SKF6311-RSJEMSKF6311-ZSKF6311-Z/C3SKF6311-ZJEMSKF6311-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
7311 BEP	Open (No Seal)	CN
7311 BEP C3	Open (No Seal)	C3
7311 BE-2RZP	2RS	CN
7311 BE-2RZP C3	2RS	C3

Related Bearings

Adjacent sizes and cross-series bearings from our catalog.