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NTN 52387/52637: bore d 3.8750 in, outside diameter D 6.3750 in, width W 1.4375 in, drawn to scaled 3.8750 inD 6.3750 inW 1.4375 in
Drawing: BearingLookup, to the printed bore d, outside diameter D and width W cited in the specifications below; internal detail is illustrative.

NTN 52387/52637 inch tapered roller bearing

NTN 52387/52637 inch tapered roller bearing: bore d 3.8750 in (98.425 mm), outside diameter D 6.3750 in (161.925 mm), width 1.4375 in (36.513 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 d3.8750 in (98.425 mm)
Outside diameter D6.3750 in (161.925 mm)
Width1.4375 in (36.513 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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