What is the equivalent of a 313-SFF bearing?

The 313-SFF is a 65×140×33mm ball bearing with verified equivalents across multiple brands: NSK 6313DDU, NTN 6313LLU, SKF 6313-2RS1, Timken 6313-2RS. All equivalents share the same bore, outer diameter, width, and load ratings.

What are the dimensions of a 313-SFF bearing?

The 313-SFF bearing has a bore diameter of 65mm, outer diameter of 140mm, and width of 33mm. It has a dynamic load rating of 93 kN, static load rating of 56 kN, and weighs 1380g. Maximum speed with grease lubrication is 5,000 rpm.

Can I replace a FAG 313-SFF with a NSK equivalent?

Yes. FAG and NSK bearings with the same ISO designation are dimensionally interchangeable. The 313-SFF (65×140×33mm) can be replaced with the equivalent NSK part number as long as the seal type (2RS) and clearance class (CN) match. Always verify load ratings and speed limits for your specific application.

313-SFF

2RSCNDeep Groove Ball Bearing

FAG6313-2RSR

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Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)	65 mm
Outer diameter (D)	140 mm
Width (B)	33 mm
Dynamic load rating (C)	93 kN
Static load rating (C₀)	56 kN
Weight	1380 g
Max speed (grease)	5,000 rpm
Max speed (oil)	—

→ What does 2RS mean on a bearing?→ How to read a bearing part number

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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	6313-2RSR	2RS	CN	Probable
NSK	6313DDU	2RS	CN	Probable
NTN	6313LLU	2RS	CN	Probable
SKF	6313-2RS1	2RS	CN	Probable
Timken	6313-2RS	2RS	CN	Probable

Legacy & Proprietary Numbers

SKF6313STEYR6313NSK6313KOYO6313PEER6313FLT6313RHP6313ZWZ6313NTN6313SNR6313Fafnir313KFBC6313FEDERAL1313MRC313-SFederal1313FFHOOVER7313New Departure88213FAFNIR6313MGM6313SOMA3031043ZKL6313SKF6313-2RS1/C3STEYR6313-2RS1/C3NSK6313C3EKOYO63132RSPEER6313-2RLDFLT6313NRHP6313-2ZZWZ6313-2ZNTN6313LU

Show all 107 cross-references

SNR6313NFafnir313KDFBC6313PFEDERAL1313FMRC313-SFFFederal1313SFHOOVER7313GNew Departure88513SKF6313-2RSJEMSTEYR6313-2ZNSK6313CMKOYO6313DPEER6313-2RLD-C3FLT6313NRRHP6313NZWZ6313MNTN6313NRSNR6313NRFafnir313KDDFBC6313PPFEDERAL1313FFMRC313-SZZSKF6313-2ZSTEYR6313-2Z/C3NSK6313DDUCMKOYO6313DDPEER6313-C3FLT6313ZRHP6313NRZWZ6313NNTN6313ZSNR6313ZSKF6313-2Z/C3STEYR6313C3NSK6313DUKOYO6313NRPEER6313-RLDFLT6313ZNRRHP6313RSZWZ6313-RSNTN6313ZNRSKF6313-2Z/C3GJNSTEYR6313C4NSK6313MKOYO6313RSPEER6313-ZZDFLT6313ZZRHP6313ZZWZ6313-ZSKF6313-2Z/C3HT51STEYR6313M1/C3NSK6313NRKOYO6313ZPEER6313-ZZD-C3SKF6313-2ZJEMSTEYR6313NRNSK6313ZKOYO6313ZNRSKF6313/C3STEYR6313RS1NSK6313ZNRSKF6313/C4STEYR6313ZSKF6313ETN/C3STEYR6313Z/C3SKF6313JEMSTEYR6313ZNRSKF6313M/C3SKF6313M/C3VL0241SKF6313NRSKF6313NRJEMSKF6313-RS1SKF6313-ZSKF6313-Z/C3SKF6313-ZJEMSKF6313-ZNRSKF6313-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

Rubber Sealed (2RS)

Rubber contact seals on both sides. Superior protection from contaminants. Pre-lubricated, maintenance-free.

Avoid forVery high-speed applications (seal friction limits top speed). Environments exceeding 110°C.

Examples

Agricultural machinery
Conveyor rollers
Automotive components
Outdoor equipment
Washing machines

Where This Bearing Is Used

Electric motorsPumps and compressorsConveyor rollersAgricultural machineryFans and blowersGearboxesPower transmission equipmentWashing machinesPrinting pressesHVACAutomotive alternators and A/C compressors

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