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NTN 27881/27820: bore d 1.5000 in, outside diameter D 3.1510 in, width W 0.9688 in, drawn to scaled 1.5000 inD 3.1510 inW 0.9688 in
Drawing: BearingLookup, to the printed bore d, outside diameter D and width W cited in the specifications below; internal detail is illustrative.

NTN 27881/27820 inch tapered roller bearing

NTN 27881/27820 inch tapered roller bearing: bore d 1.5000 in (38.100 mm), outside diameter D 3.1510 in (80.035 mm), width 0.9688 in (24.608 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 d1.5000 in (38.100 mm)
Outside diameter D3.1510 in (80.035 mm)
Width0.9688 in (24.608 mm)
Basic dynamic load rating Cr67.00 kN
Basic static load rating C0r82.50 kN

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

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