What is the equivalent of a 317K bearing?

The 317K is a 85×180×41mm ball bearing with verified equivalents across multiple brands: NSK 6317, NTN 6317, SKF 6317, Timken 6317. All equivalents share the same bore, outer diameter, width, and load ratings.

What are the dimensions of a 317K bearing?

The 317K bearing has a bore diameter of 85mm, outer diameter of 180mm, and width of 41mm. It has a dynamic load rating of 133 kN, static load rating of 90 kN, and weighs 3000g. Maximum speed with grease lubrication is 3,800 rpm.

Can I replace a FAG 317K with a NSK equivalent?

Yes. FAG and NSK bearings with the same ISO designation are dimensionally interchangeable. The 317K (85×180×41mm) can be replaced with the equivalent NSK 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.

317K

OpenCNDeep Groove Ball Bearing

FAG6317

Pricing not yet available for this part.

Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)	85 mm
Outer diameter (D)	180 mm
Width (B)	41 mm
Dynamic load rating (C)	133 kN
Static load rating (C₀)	90 kN
Weight	3000 g
Max speed (grease)	3,800 rpm
Max speed (oil)	—

→ How to read a bearing part number

Get a PDF spec sheet

Save, print, or forward to procurement. We'll email it to you and download immediately.

Cross-References

Every way this part is identified across brands and catalogs.

Tier-1 Brand Equivalents

Brand	Part Number	Seal	Clearance	Status
FAG	6317	Open	CN	Probable
NSK	6317	Open	CN	Probable
NTN	6317	Open	CN	Probable
SKF	6317	Open	CN	Probable
Timken	6317	Open	CN	Probable

Legacy & Proprietary Numbers

SKF6317-2RS1STEYR6317-2RS1NSK6317C3EPEER6317-2RLDZWZ6317-2RSFafnir317KKOYO63172RSMRC317-SNTN6317LLURHP6317-2RSFederal1317FFNew Departure88217FEDERAL1317HOOVER7317SKF6317-2RS1/C3STEYR6317-2RS1/C3NSK6317CMPEER6317-2RLD-NRZWZ6317-2ZFafnir317KDKOYO6317ZMRC317-SFFNTN6317ZRHP6317-2ZFederal1317SFNew Departure88517SKF6317-2RSJEMSTEYR6317-2ZNSK6317DDUPEER6317-ZD

Show all 59 cross-references

ZWZ6317MFafnir317KDDKOYO6317ZZMRC317-SZZNTN6317ZZRHP6317ZSKF6317-2ZSTEYR6317-2Z/C3NSK6317MPEER6317-ZZDZWZ6317-ZSKF6317-2Z/C3STEYR6317C3NSK6317ZSKF6317-2ZJEMSTEYR6317C4NSK6317ZZSKF6317/C3STEYR6317ZSKF6317/C3VL0241SKF6317/C4SKF6317/C4S1SKF6317JEMSKF6317M/C3SKF6317M/C3VL0241SKF6317M/C3VL0244SKF6317/P63SKF6317-ZSKF6317-ZJEM

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.

Related Bearings

Adjacent sizes and cross-series bearings from our catalog.