358/354A

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

Bore d45 mmOutside diameter D85 mmOverall width T20.638 mmDynamic rating Cr89.6 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

Inch family

Designation: 358/354A
Family: Inch Tapered Roller Bearings
Bore d: 45 mm
Outside diameter D: 85 mm
Overall width T: 20.638 mm
Inner ring width B: 21.692 mm
Minimum corner radius r: 1.6 mm
Minimum corner radius r1: 1.2 mm
Dynamic load rating Cr: 89.6 kN
Static load rating C0r: 81.7 kN
Fatigue load limit Cu: 12.4 kN
Grease limiting speed: 4,600 rpm
Published row text: 358/354A | 45 | 85 | 20.638 | 21.692 | 1.6 | 1.2 | 89.6 | 81.7 | 12.4 | 4600

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.