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NTN 3386/3320: bore d 1.5630 in, outside diameter D 3.1562 in, width W 1.1563 in, drawn to scaled 1.5630 inD 3.1562 inW 1.1563 in
Drawing: BearingLookup, to the printed bore d, outside diameter D and width W cited in the specifications below; internal detail is illustrative.

NTN 3386/3320 inch tapered roller bearing

NTN 3386/3320 inch tapered roller bearing: bore d 1.5630 in (39.688 mm), outside diameter D 3.1562 in (80.167 mm), width 1.1563 in (29.370 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 d1.5630 in (39.688 mm)
Outside diameter D3.1562 in (80.167 mm)
Width1.1563 in (29.370 mm)
Basic dynamic load rating Cr95.00 kN
Basic static load rating C0r112.00 kN

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

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