27880/20

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

Bore d38.1 mmOutside diameter D80.035 mmOverall width T24.608 mmDynamic rating Cr91.6 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

Inch family

Designation: 27880/20
Family: Inch Tapered Roller Bearings
Bore d: 38.1 mm
Outside diameter D: 80.035 mm
Overall width T: 24.608 mm
Inner ring width B: 23.698 mm
Minimum corner radius r: 0.8 mm
Minimum corner radius r1: 1.6 mm
Dynamic load rating Cr: 91.6 kN
Static load rating C0r: 91.6 kN
Fatigue load limit Cu: 13.3 kN
Grease limiting speed: 5,200 rpm
Published row text: 27880/20 | 38.1 | 80.035 | 24.608 | 23.698 | 0.8 | 1.6 | 91.6 | 91.6 | 13.3 | 5200

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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