438/432A

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

Bore d44.45 mmOutside diameter D95.25 mmOverall width T27.783 mmDynamic rating Cr129 kNKoyo calculation tool ↗

Live manufacturer specification row

Published specifications

Inch family

Designation: 438/432A
Family: Inch Tapered Roller Bearings
Bore d: 44.45 mm
Outside diameter D: 95.25 mm
Overall width T: 27.783 mm
Inner ring width B: 29.901 mm
Minimum corner radius r: 3.6 mm
Minimum corner radius r1: 0.8 mm
Dynamic load rating Cr: 129 kN
Static load rating C0r: 122 kN
Fatigue load limit Cu: 18.8 kN
Grease limiting speed: 4,500 rpm
Published row text: 438/432A | 44.45 | 95.25 | 27.783 | 29.901 | 3.6 | 0.8 | 129 | 122 | 18.8 | 4500

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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