25582/20

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

Bore d44.45 mmOutside diameter D82.931 mmOverall width T23.812 mmDynamic rating Cr96.8 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

Inch family

Designation: 25582/20
Family: Inch Tapered Roller Bearings
Bore d: 44.45 mm
Outside diameter D: 82.931 mm
Overall width T: 23.812 mm
Inner ring width B: 25.4 mm
Minimum corner radius r: 5.2 mm
Minimum corner radius r1: 0.8 mm
Dynamic load rating Cr: 96.8 kN
Static load rating C0r: 100 kN
Fatigue load limit Cu: 15.1 kN
Grease limiting speed: 4,800 rpm
Published row text: 25582/20 | 44.45 | 82.931 | 23.812 | 25.4 | 5.2 | 0.8 | 96.8 | 100 | 15.1 | 4800

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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