17580R/20

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

Bore d15.875 mmOutside diameter D42.862 mmOverall width T16.67 mmDynamic rating Cr38.2 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

Inch family

Designation: 17580R/20
Family: Inch Tapered Roller Bearings
Bore d: 15.875 mm
Outside diameter D: 42.862 mm
Overall width T: 16.67 mm
Inner ring width B: 16.67 mm
Minimum corner radius r: 1.6 mm
Minimum corner radius r1: 1.6 mm
Dynamic load rating Cr: 38.2 kN
Static load rating C0r: 29.5 kN
Fatigue load limit Cu: 4.15 kN
Grease limiting speed: 10,000 rpm
Published row text: 17580R/20 | 15.875 | 42.862 | 16.67 | 16.67 | 1.6 | 1.6 | 38.2 | 29.5 | 4.15 | 10000

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.

Related Koyo bearings