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NTN 18685/18620: bore d 1.7500 in, outside diameter D 3.1250 in, width W 0.6875 in, drawn to scaled 1.7500 inD 3.1250 inW 0.6875 in
Drawing: BearingLookup, to the printed bore d, outside diameter D and width W cited in the specifications below; internal detail is illustrative.

NTN 18685/18620 inch tapered roller bearing

NTN 18685/18620 inch tapered roller bearing: bore d 1.7500 in (44.450 mm), outside diameter D 3.1250 in (79.375 mm), width 0.6875 in (17.462 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 D3.1250 in (79.375 mm)
Width0.6875 in (17.462 mm)
Basic dynamic load rating Cr45.50 kN
Basic static load rating C0r55.60 kN

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

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