L44643R/10

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

Bore d25.4 mmOutside diameter D50.292 mmOverall width T14.224 mmDynamic rating Cr39.1 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

Inch family

Designation: L44643R/10
Family: Inch Tapered Roller Bearings
Bore d: 25.4 mm
Outside diameter D: 50.292 mm
Overall width T: 14.224 mm
Inner ring width B: 14.732 mm
Minimum corner radius r: 1.2 mm
Minimum corner radius r1: 1.2 mm
Dynamic load rating Cr: 39.1 kN
Static load rating C0r: 37 kN
Fatigue load limit Cu: 5.15 kN
Grease limiting speed: 7,800 rpm
Published row text: L44643R/10 | 25.4 | 50.292 | 14.224 | 14.732 | 1.2 | 1.2 | 39.1 | 37 | 5.15 | 7800

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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