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NTN 11590/11520: bore d 0.6250 in, outside diameter D 1.6875 in, width W 0.5625 in, drawn to scaled 0.6250 inD 1.6875 inW 0.5625 in
Drawing: BearingLookup, to the printed bore d, outside diameter D and width W cited in the specifications below; internal detail is illustrative.

NTN 11590/11520 inch tapered roller bearing

NTN 11590/11520 inch tapered roller bearing: bore d 0.6250 in (15.875 mm), outside diameter D 1.6875 in (42.863 mm), width 0.5625 in (14.288 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 d0.6250 in (15.875 mm)
Outside diameter D1.6875 in (42.863 mm)
Width0.5625 in (14.288 mm)
Basic dynamic load rating Cr17.60 kN
Basic static load rating C0r17.50 kN

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

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