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NTN 25580/25520: bore d 1.7500 in, outside diameter D 3.2650 in, width W 0.9375 in, drawn to scaled 1.7500 inD 3.2650 inW 0.9375 in
Drawing: BearingLookup, to the printed bore d, outside diameter D and width W cited in the specifications below; internal detail is illustrative.

NTN 25580/25520 inch tapered roller bearing

NTN 25580/25520 inch tapered roller bearing: bore d 1.7500 in (44.450 mm), outside diameter D 3.2650 in (82.931 mm), width 0.9375 in (23.812 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 d1.7500 in (44.450 mm)
Outside diameter D3.2650 in (82.931 mm)
Width0.9375 in (23.812 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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