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NTN 52393/52639: bore d 3.9375 in, outside diameter D 6.3750 in, width W 1.6250 in, drawn to scaled 3.9375 inD 6.3750 inW 1.6250 in
Drawing: BearingLookup, to the printed bore d, outside diameter D and width W cited in the specifications below; internal detail is illustrative.

NTN 52393/52639 inch tapered roller bearing

NTN 52393/52639 inch tapered roller bearing: bore d 3.9375 in (100.012 mm), outside diameter D 6.3750 in (161.925 mm), width 1.6250 in (41.275 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 d3.9375 in (100.012 mm)
Outside diameter D6.3750 in (161.925 mm)
Width1.6250 in (41.275 mm)
Basic dynamic load rating Cr205.00 kN
Basic static load rating C0r345.00 kN

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

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