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NTN 31593/31520: bore d 1.3750 in, outside diameter D 3.0000 in, width W 1.1563 in, drawn to scaled 1.3750 inD 3.0000 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 31593/31520 inch tapered roller bearing

NTN 31593/31520 inch tapered roller bearing: bore d 1.3750 in (34.925 mm), outside diameter D 3.0000 in (76.200 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 d1.3750 in (34.925 mm)
Outside diameter D3.0000 in (76.200 mm)
Width1.1563 in (29.370 mm)
Basic dynamic load rating Cr80.50 kN
Basic static load rating C0r97.00 kN

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

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