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NTN 30305: bore d 25.000 mm, outside diameter D 62.000 mm, width T 18.250 mm, drawn to scaled 25.000 mmD 62.000 mmT 18.250 mm
Drawing: BearingLookup, to the printed bore d, outside diameter D and width T cited in the specifications below; internal detail is illustrative.

NTN 30305 metric tapered roller bearing

NTN 30305 metric tapered roller bearing: bore d 25.000 mm (0.9843 in), outside diameter D 62.000 mm (2.4409 in), width 18.250 mm (0.7185 in).

Metric tapered roller bearings · All NTN part numbers

Cutaway rendering of a tapered roller bearing with the cup pulled away to show the tapered rollers on the cone
A typical metric tapered roller bearing — not necessarily this part. Photo: “Tapered-roller-bearing din720 120-ex” by Silberwolf, CC BY 2.5, via Wikimedia Commons (resized).

Specifications

Bore d25.000 mm (0.9843 in)
Outside diameter D62.000 mm (2.4409 in)
Width18.250 mm (0.7185 in)
Basic dynamic load rating Cr48.50 kN
Basic static load rating C0r47.50 kN

All specifications: Verified printed in NTN’s own product listing

Same size, other makers and types (25 × 62 × 18.25 mm)

PartManufacturerType
30305DJRKoyometric tapered roller bearing
30305JRKoyometric tapered roller bearing
TR0506RKoyometric 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.

Related parts

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