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NTN 17887/17831: bore d 1.7807 in, outside diameter D 3.1490 in, width W 0.7812 in, drawn to scaled 1.7807 inD 3.1490 inW 0.7812 in
Drawing: BearingLookup, to the printed bore d, outside diameter D and width W cited in the specifications below; internal detail is illustrative.

NTN 17887/17831 inch tapered roller bearing

NTN 17887/17831 inch tapered roller bearing: bore d 1.7807 in (45.230 mm), outside diameter D 3.1490 in (79.985 mm), width 0.7812 in (19.842 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 d1.7807 in (45.230 mm)
Outside diameter D3.1490 in (79.985 mm)
Width0.7812 in (19.842 mm)
Basic dynamic load rating Cr53.40 kN
Basic static load rating C0r46.30 kN

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

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