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NTN 392/394A: bore d 2.4375 in, outside diameter D 4.3307 in, width W 0.8661 in, drawn to scaled 2.4375 inD 4.3307 inW 0.8661 in
Drawing: BearingLookup, to the printed bore d, outside diameter D and width W cited in the specifications below; internal detail is illustrative.

NTN 392/394A inch tapered roller bearing

NTN 392/394A inch tapered roller bearing: bore d 2.4375 in (61.912 mm), outside diameter D 4.3307 in (110.000 mm), width 0.8661 in (22.000 mm).

Inch tapered roller bearings · All NTN part numbers

Rendering of a tapered roller bearing with the outer cup separated from the cone and its ring of tapered rollers
A typical inch tapered roller bearing — not necessarily this part. Photo: “Tapered-roller-bearing din720 ex” by Silberwolf, CC BY 2.5, via Wikimedia Commons (resized).

Specifications

Bore d2.4375 in (61.912 mm)
Outside diameter D4.3307 in (110.000 mm)
Width0.8661 in (22.000 mm)
Basic dynamic load rating Cr90.00 kN
Basic static load rating C0r123.00 kN

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

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