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Koyo 30311DJR — catalogue photograph of the metric tapered roller bearing family

Koyo 30311DJR metric tapered roller bearing

Koyo 30311DJR metric tapered roller bearing: bore d 55 mm, outside diameter D 120 mm, width 31.5 mm.

Metric tapered 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 30311DJR — catalogue photograph of the metric tapered roller bearing familyKoyo 30311DJR — catalogue drawing of the metric tapered roller bearing family

Specifications

Bore d55 mm
Outside diameter D120 mm
Width31.5 mm
Basic dynamic load rating Cr161 kN
Basic static load rating C0r148 kN
Limiting speed, grease lubrication2900 min-1
Limiting speed, oil lubrication4000 min-1
Mass1.59 kg

All specifications: Verifiedprinted in Koyo’s own catalogue

Same size, other makers and types (55 × 120 × 31.5 mm)

PartManufacturerType
30311NTNmetric tapered roller bearing
30311DNTNmetric tapered roller bearing
31311ANTNmetric tapered roller bearing

These match this part on the dimensions each maker prints. A size match is not a stated interchange: check the other specifications before substituting.

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