420/414

Manufacturer-published tapered-roller dimensions, load ratings, fatigue load limit, and limiting speed.

Bore d40 mmOutside diameter D88.501 mmOverall width T26.988 mmDynamic rating Cr123 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

Inch family

Designation: 420/414
Family: Inch Tapered Roller Bearings
Bore d: 40 mm
Outside diameter D: 88.501 mm
Overall width T: 26.988 mm
Inner ring width B: 29.083 mm
Minimum corner radius r: 3.6 mm
Minimum corner radius r1: 1.6 mm
Dynamic load rating Cr: 123 kN
Static load rating C0r: 112 kN
Fatigue load limit Cu: 17.2 kN
Grease limiting speed: 4,900 rpm
Published row text: 420/414 | 40 | 88.501 | 26.988 | 29.083 | 3.6 | 1.6 | 123 | 112 | 17.2 | 4900

Verification boundary

Do not infer interchange

Exact set architectureConfirm metric versus inch family, cone/cup identity, series, and complete designation.

Fits and geometryVerify shaft/housing seats, shoulders, fillets, preload/endplay, and mounting arrangement.

DutyCheck combined radial/axial loading, lubrication, speed, temperature, contamination, and required life.

Current manufacturer dataUse the linked JTEKT/Koyo calculation and CAD tools before ordering.

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