3198/20

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

Bore d28.575 mmOutside diameter D72.626 mmOverall width T30.162 mmDynamic rating Cr98.6 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

Inch family

Designation: 3198/20
Family: Inch Tapered Roller Bearings
Bore d: 28.575 mm
Outside diameter D: 72.626 mm
Overall width T: 30.162 mm
Inner ring width B: 29.997 mm
Minimum corner radius r: 1.2 mm
Minimum corner radius r1: 3.2 mm
Dynamic load rating Cr: 98.6 kN
Static load rating C0r: 89.3 kN
Fatigue load limit Cu: 13.3 kN
Grease limiting speed: 5,800 rpm
Published row text: 3198/20 | 28.575 | 72.626 | 30.162 | 29.997 | 1.2 | 3.2 | 98.6 | 89.3 | 13.3 | 5800

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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