02474/20

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

Bore d28.575 mmOutside diameter D68.262 mmOverall width T22.225 mmDynamic rating Cr63.7 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

Inch family

Designation: 02474/20
Family: Inch Tapered Roller Bearings
Bore d: 28.575 mm
Outside diameter D: 68.262 mm
Overall width T: 22.225 mm
Inner ring width B: 22.225 mm
Minimum corner radius r: 0.8 mm
Minimum corner radius r1: 1.6 mm
Dynamic load rating Cr: 63.7 kN
Static load rating C0r: 61.1 kN
Fatigue load limit Cu: 8.8 kN
Grease limiting speed: 6,000 rpm
Published row text: 02474/20 | 28.575 | 68.262 | 22.225 | 22.225 | 0.8 | 1.6 | 63.7 | 61.1 | 8.8 | 6000

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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