JTEKT/Koyo Metric Tapered Roller Bearings · live catalog page 1
32303
Manufacturer-published tapered-roller dimensions, load ratings, fatigue load limit, and limiting speed.
Bore d17 mmOutside diameter D47 mmOverall width T20.25 mmDynamic rating Cr39.9 kNKoyo calculation tool ↗
Live manufacturer specification row
Published specifications
- Designation
- 32303
- Family
- Metric Tapered Roller Bearings
- Bore d
- 17 mm
- Outside diameter D
- 47 mm
- Overall width T
- 20.25 mm
- Inner ring width B
- 19 mm
- Minimum corner radius r
- 1 mm
- Minimum corner radius r1
- 1 mm
- Dynamic load rating Cr
- 39.9 kN
- Static load rating C0r
- 29.9 kN
- Fatigue load limit Cu
- 4.25 kN
- Grease limiting speed
- 9,400 rpm
- Published row text
- 32303 | 17 | 47 | 20.25 | 19 | 1 | 1 | 39.9 | 29.9 | 4.25 | 9400
Verification boundary
What still needs to match
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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