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NTN 15579X/15520: bore d 1.0231 in, outside diameter D 2.2500 in, width W 0.6875 in, drawn to scaled 1.0231 inD 2.2500 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 15579X/15520 inch tapered roller bearing

NTN 15579X/15520 inch tapered roller bearing: bore d 1.0231 in (25.987 mm), outside diameter D 2.2500 in (57.150 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 d1.0231 in (25.987 mm)
Outside diameter D2.2500 in (57.150 mm)
Width0.6875 in (17.462 mm)
Basic dynamic load rating Cr39.50 kN
Basic static load rating C0r45.50 kN

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

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