13889/36

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

Bore d38.1 mmOutside diameter D65.088 mmOverall width T12.7 mmDynamic rating Cr32.1 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

Inch family

Designation: 13889/36
Family: Inch Tapered Roller Bearings
Bore d: 38.1 mm
Outside diameter D: 65.088 mm
Overall width T: 12.7 mm
Inner ring width B: 11.908 mm
Minimum corner radius r: 1.6 mm
Minimum corner radius r1: 0.8 mm
Dynamic load rating Cr: 32.1 kN
Static load rating C0r: 33.1 kN
Fatigue load limit Cu: 4.6 kN
Grease limiting speed: 5,800 rpm
Published row text: 13889/36 | 38.1 | 65.088 | 12.7 | 11.908 | 1.6 | 0.8 | 32.1 | 33.1 | 4.6 | 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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