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NTN 30321: bore d 105.000 mm, outside diameter D 225.000 mm, width T 53.500 mm, drawn to scaled 105.000 mmD 225.000 mmT 53.500 mm
Drawing: BearingLookup, to the printed bore d, outside diameter D and width T cited in the specifications below; internal detail is illustrative.

NTN 30321 metric tapered roller bearing

NTN 30321 metric tapered roller bearing: bore d 105.000 mm (4.1339 in), outside diameter D 225.000 mm (8.8583 in), width 53.500 mm (2.1063 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 d105.000 mm (4.1339 in)
Outside diameter D225.000 mm (8.8583 in)
Width53.500 mm (2.1063 in)
Basic dynamic load rating Cr435.00 kN
Basic static load rating C0r530.00 kN

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

Same size, other makers and types (105 × 225 × 53.5 mm)

PartManufacturerType
30321Koyometric tapered roller bearing
30321DKoyometric tapered roller bearing
30321JRKoyometric 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

Sources