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NTN 30309D: bore d 45.000 mm, outside diameter D 100.000 mm, width T 27.250 mm, drawn to scaled 45.000 mmD 100.000 mmT 27.250 mm
Drawing: BearingLookup, to the printed bore d, outside diameter D and width T cited in the specifications below; internal detail is illustrative.

NTN 30309D metric tapered roller bearing

NTN 30309D metric tapered roller bearing: bore d 45.000 mm (1.7717 in), outside diameter D 100.000 mm (3.9370 in), width 27.250 mm (1.0728 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 d45.000 mm (1.7717 in)
Outside diameter D100.000 mm (3.9370 in)
Width27.250 mm (1.0728 in)
Basic dynamic load rating Cr96.00 kN
Basic static load rating C0r109.00 kN

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

Same size, other makers and types (45 × 100 × 27.25 mm)

PartManufacturerType
30309CRKoyometric tapered roller bearing
30309DJRKoyometric tapered roller bearing
30309JRKoyometric 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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