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NTN 55175C/55443: bore d 1.7500 in, outside diameter D 4.4375 in, width W 1.1875 in, drawn to scaled 1.7500 inD 4.4375 inW 1.1875 in
Drawing: BearingLookup, to the printed bore d, outside diameter D and width W cited in the specifications below; internal detail is illustrative.

NTN 55175C/55443 inch tapered roller bearing

NTN 55175C/55443 inch tapered roller bearing: bore d 1.7500 in (44.450 mm), outside diameter D 4.4375 in (112.713 mm), width 1.1875 in (30.162 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 d1.7500 in (44.450 mm)
Outside diameter D4.4375 in (112.713 mm)
Width1.1875 in (30.162 mm)
Basic dynamic load rating Cr115.00 kN
Basic static load rating C0r157.00 kN

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

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