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Koyo RNA4902 — catalogue photograph of the needle roller bearing family

Koyo RNA4902 needle roller bearing inner ring

Koyo RNA4902 needle roller bearing inner ring: roller bore diameter Fw 20 mm, outside diameter D 28 mm, width 13 mm; cross-references: IKO RNA4902, INA RNA4902.

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 RNA4902 — catalogue photograph of the needle roller bearing familyKoyo RNA4902 — catalogue drawing of the needle roller bearing familyKoyo RNA4902 — catalogue drawing of the needle roller bearing family

Specifications

Roller bore diameter Fw20 mm
Outside diameter D28 mm
Width13 mm
Basic dynamic load rating Cr11.8 kN
Shaft diameter20 mm
Basic static load rating C0r15.3 kN
Limiting speed, grease lubrication14000 min-1
Limiting speed, oil lubrication22000 min-1
Mass0.023 kg
Product typeHeavy-duty needle roller bearings without inner rings, metric series

All specifications: Verifiedprinted in Koyo’s own catalogue

Cross-references

PartManufacturerRelationshipEvidence
IKODimensional interchangeSingle sourcestated by Koyo; not corroborated
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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