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NTN 1985/1930: bore d 1.1250 in, outside diameter D 2.2400 in, width W 0.7813 in, drawn to scaled 1.1250 inD 2.2400 inW 0.7813 in
Drawing: BearingLookup, to the printed bore d, outside diameter D and width W cited in the specifications below; internal detail is illustrative.

NTN 1985/1930 inch tapered roller bearing

NTN 1985/1930 inch tapered roller bearing: bore d 1.1250 in (28.575 mm), outside diameter D 2.2400 in (56.896 mm), width 0.7813 in (19.845 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 d1.1250 in (28.575 mm)
Outside diameter D2.2400 in (56.896 mm)
Width0.7813 in (19.845 mm)
Basic dynamic load rating Cr40.50 kN
Basic static load rating C0r44.50 kN

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

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