2788R/29

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

Bore d38.1 mmOutside diameter D76.2 mmOverall width T23.812 mmDynamic rating Cr92.6 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

Inch family

Designation: 2788R/29
Family: Inch Tapered Roller Bearings
Bore d: 38.1 mm
Outside diameter D: 76.2 mm
Overall width T: 23.812 mm
Inner ring width B: 25.654 mm
Minimum corner radius r: 3.6 mm
Minimum corner radius r1: 0.8 mm
Dynamic load rating Cr: 92.6 kN
Static load rating C0r: 92.2 kN
Fatigue load limit Cu: 13.8 kN
Grease limiting speed: 5,400 rpm
Published row text: 2788R/29 | 38.1 | 76.2 | 23.812 | 25.654 | 3.6 | 0.8 | 92.6 | 92.2 | 13.8 | 5400

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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