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Koyo RNA6904 — catalogue photograph of the needle roller bearing family

Koyo RNA6904 needle roller bearing inner ring

Koyo RNA6904 needle roller bearing inner ring: roller bore diameter Fw 25 mm, outside diameter D 37 mm, width 30 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 RNA6904 — catalogue photograph of the needle roller bearing familyKoyo RNA6904 — catalogue drawing of the needle roller bearing familyKoyo RNA6904 — catalogue drawing of the needle roller bearing family

Specifications

Roller bore diameter Fw25 mm
Outside diameter D37 mm
Width30 mm
Basic dynamic load rating Cr36.6 kN
Shaft diameter25 mm
Basic static load rating C0r51.0 kN
Limiting speed, grease lubrication12000 min-1
Limiting speed, oil lubrication18000 min-1
Mass0.091 kg
Product typeHeavy-duty needle roller bearings without inner rings, metric series

All specifications: Verifiedprinted in Koyo’s own catalogue

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