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Koyo NK55/25 — catalogue photograph of the needle roller bearing family

Koyo NK55/25 needle roller bearing inner ring

Koyo NK55/25 needle roller bearing inner ring: roller bore diameter Fw 55 mm, outside diameter D 68 mm, width 25 mm.

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 NK55/25 — catalogue photograph of the needle roller bearing familyKoyo NK55/25 — catalogue drawing of the needle roller bearing familyKoyo NK55/25 — catalogue drawing of the needle roller bearing family

Specifications

Roller bore diameter Fw55 mm
Outside diameter D68 mm
Width25 mm
Basic dynamic load rating Cr46.1 kN
Shaft diameter55 mm
Basic static load rating C0r87.3 kN
Limiting speed, grease lubrication5000 min-1
Limiting speed, oil lubrication7800 min-1
Mass0.207 kg
Product typeHeavy-duty needle roller bearings without inner rings, metric series

All specifications: Verifiedprinted in Koyo’s own catalogue

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