3781/3720

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

Bore B1.9375 in / 49.212 mmOutside diameter D3.6718 in / 93.264 mmWidth W1.1875 in / 30.162 mmDynamic rating109,000 NNTN item page ↗

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Published specifications

NTN Bearing Finder

Set number: 3781/3720
Bore B: 1.9375 in / 49.212 mm
Outside diameter D: 3.6718 in / 93.264 mm
Width W: 1.1875 in / 30.162 mm
Minimum corner radius r: 0.13 in / 3.3 mm
Static load rating: 33,500 lbf / 148,000 N
Dynamic load rating: 24,500 lbf / 109,000 N
Published row text: 3781/3720 | N/A 1.9375 in 49.212 mm | N/A 3.6718 in 93.264 mm | N/A 1.1875 in 30.162 mm | N/A 0.1300 in 3.300 mm | N/A 33500 lbf 148000 N 148.00 kN | N/A 24500 lbf 109000 N 109.00 kN

Verification boundary

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.

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