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

Koyo NK55/25 heavy-duty needle roller bearing

Koyo NK55/25 heavy-duty needle roller bearing: roller bore diameter Fw 55 mm, outside diameter D 68 mm, width 25 mm.

Heavy-duty needle roller bearings · 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
Koyo NK55/25: roller bore diameter Fw 55 mm, outside diameter D 68 mm, width C 25 mm, drawn to scaleFw 55 mmD 68 mmC 25 mm
Drawing: BearingLookup, to the printed roller bore diameter Fw, outside diameter D and width C cited in the specifications below; internal detail is illustrative.

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: Verified printed in Koyo’s own catalogue

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