LM503349R/10

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

Bore d45.987 mmOutside diameter D74.976 mmOverall width T18 mmDynamic rating Cr66.2 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

Inch family

Designation: LM503349R/10
Family: Inch Tapered Roller Bearings
Bore d: 45.987 mm
Outside diameter D: 74.976 mm
Overall width T: 18 mm
Inner ring width B: 18 mm
Minimum corner radius r: 2.4 mm
Minimum corner radius r1: 1.6 mm
Dynamic load rating Cr: 66.2 kN
Static load rating C0r: 74.6 kN
Fatigue load limit Cu: 10.8 kN
Grease limiting speed: 5,000 rpm
Published row text: LM503349R/10 | 45.987 | 74.976 | 18 | 18 | 2.4 | 1.6 | 66.2 | 74.6 | 10.8 | 5000

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.