Industrial replacement referenceSource-backed records · No compatibility guesswork

NTN tapered roller set · live catalog page 1

1780/1729

Manufacturer-published cone/cup set dimensions and radial load ratings.

Bore B1 in / 25.4 mmOutside diameter D2.24 in / 56.896 mmWidth W0.7625 in / 19.368 mmDynamic rating42,500 NNTN item page ↗

Live manufacturer row

Published specifications

NTN Bearing Finder
Set number
1780/1729
Bore B
1 in / 25.4 mm
Outside diameter D
2.24 in / 56.896 mm
Width W
0.7625 in / 19.368 mm
Minimum corner radius r
0.05 in / 1.3 mm
Static load rating
10,454 lbf / 46,500 N
Dynamic load rating
9,554 lbf / 42,500 N
Published row text
1780/1729 | N/A 1.0000 in 25.400 mm | N/A 2.2400 in 56.896 mm | N/A 0.7625 in 19.368 mm | N/A 0.0500 in 1.300 mm | N/A 10454 lbf 46500 N 46.50 kN | N/A 9554 lbf 42500 N 42.50 kN

Verification boundary

What still needs to match

Do not infer interchange
Exact cone/cup setConfirm both members of the set and exact series/designation.
Fits and geometryVerify shaft and housing seats, shoulders, fillets, preload/endplay, and mounting arrangement.
DutyCheck radial and axial loading, speed, lubrication, temperature, contamination, and required life.
Current dataConfirm the exact set in NTN Bearing Finder before ordering.

Related NTN sets

Same bore dimension

8