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NTN 25590/25523: bore d 1.7960 in, outside diameter D 3.2650 in, width W 1.0625 in, drawn to scaled 1.7960 inD 3.2650 inW 1.0625 in
Drawing: BearingLookup, to the printed bore d, outside diameter D and width W cited in the specifications below; internal detail is illustrative.

NTN 25590/25523 inch tapered roller bearing

NTN 25590/25523 inch tapered roller bearing: bore d 1.7960 in (45.618 mm), outside diameter D 3.2650 in (82.931 mm), width 1.0625 in (26.988 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 d1.7960 in (45.618 mm)
Outside diameter D3.2650 in (82.931 mm)
Width1.0625 in (26.988 mm)
Basic dynamic load rating Cr76.00 kN
Basic static load rating C0r98.00 kN

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

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Sources