02872/20

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

Bore d28.575 mmOutside diameter D73.025 mmOverall width T22.225 mmDynamic rating Cr68.8 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

Inch family

Designation: 02872/20
Family: Inch Tapered Roller Bearings
Bore d: 28.575 mm
Outside diameter D: 73.025 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: 3.2 mm
Dynamic load rating Cr: 68.8 kN
Static load rating C0r: 65.7 kN
Fatigue load limit Cu: 9.55 kN
Grease limiting speed: 5,500 rpm
Published row text: 02872/20 | 28.575 | 73.025 | 22.225 | 22.225 | 0.8 | 3.2 | 68.8 | 65.7 | 9.55 | 5500

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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