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Koyo NK9/12 — catalogue photograph of the needle roller bearing family

Koyo NK9/12 needle roller bearing inner ring

Koyo NK9/12 needle roller bearing inner ring: roller bore diameter Fw 9 mm, outside diameter D 16 mm, width 12 mm; cross-reference: INA NK9/12TN.

Needle roller bearing inner rings · All Koyo part numbers

Figure © Koyo, clipped unaltered from Koyo Ball & Roller Bearings catalog B2001E-6 — Standard Bearings section (B2001E-6b). It illustrates the product family printed there, which may include other sizes. Removed on request.

Koyo NK9/12 — catalogue photograph of the needle roller bearing familyKoyo NK9/12 — catalogue drawing of the needle roller bearing familyKoyo NK9/12 — catalogue drawing of the needle roller bearing family

Specifications

Roller bore diameter Fw9 mm
Outside diameter D16 mm
Width12 mm
Basic dynamic load rating Cr4.27 kN
Shaft diameter9 mm
Basic static load rating C0r4.60 kN
Limiting speed, grease lubrication26000 min-1
Limiting speed, oil lubrication40000 min-1
Mass0.012 kg
Product typeHeavy-duty needle roller bearings without inner rings, metric series

All specifications: Verifiedprinted in Koyo’s own catalogue

Cross-references

PartManufacturerRelationshipEvidence
INADimensional interchangeSingle sourcestated by Koyo; not corroborated

Koyo: 'Dimensional interchangeability only. This does not imply interchangeable in all respects.' (Metric NRB Interchange Guide p18)

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