3776/20

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

Bore d44.983 mmOutside diameter D93.264 mmOverall width T30.162 mmDynamic rating Cr129 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

Inch family

Designation: 3776/20
Family: Inch Tapered Roller Bearings
Bore d: 44.983 mm
Outside diameter D: 93.264 mm
Overall width T: 30.162 mm
Inner ring width B: 30.302 mm
Minimum corner radius r: 3.6 mm
Minimum corner radius r1: 3.2 mm
Dynamic load rating Cr: 129 kN
Static load rating C0r: 137 kN
Fatigue load limit Cu: 20.9 kN
Grease limiting speed: 4,200 rpm
Published row text: 3776/20 | 44.983 | 93.264 | 30.162 | 30.302 | 3.6 | 3.2 | 129 | 137 | 20.9 | 4200

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.