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NTN 25877/25821: bore d 1.3750 in, outside diameter D 2.8750 in, width W 0.9375 in, drawn to scaled 1.3750 inD 2.8750 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 25877/25821 inch tapered roller bearing

NTN 25877/25821 inch tapered roller bearing: bore d 1.3750 in (34.925 mm), outside diameter D 2.8750 in (73.025 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 d1.3750 in (34.925 mm)
Outside diameter D2.8750 in (73.025 mm)
Width0.9375 in (23.812 mm)
Basic dynamic load rating Cr71.00 kN
Basic static load rating C0r85.00 kN

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

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