L21549/11

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

Bore d15.875 mmOutside diameter D34.988 mmOverall width T10.998 mmDynamic rating Cr18.1 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

Inch family

Designation: L21549/11
Family: Inch Tapered Roller Bearings
Bore d: 15.875 mm
Outside diameter D: 34.988 mm
Overall width T: 10.998 mm
Inner ring width B: 10.998 mm
Minimum corner radius r: 1.2 mm
Minimum corner radius r1: 1.2 mm
Dynamic load rating Cr: 18.1 kN
Static load rating C0r: 14.3 kN
Fatigue load limit Cu: 1.9 kN
Grease limiting speed: 12,000 rpm
Published row text: L21549/11 | 15.875 | 34.988 | 10.998 | 10.998 | 1.2 | 1.2 | 18.1 | 14.3 | 1.9 | 12000

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.

Related Koyo bearings