JTEKT/Koyo Metric Tapered Roller Bearings · live catalog page 6
32910JR
Manufacturer-published tapered-roller dimensions, load ratings, fatigue load limit, and limiting speed.
Live manufacturer specification row
Published specifications
- Designation
- 32910JR
- Family
- Metric Tapered Roller Bearings
- Bore d
- 50 mm
- Outside diameter D
- 72 mm
- Overall width T
- 15 mm
- Inner ring width B
- 15 mm
- Minimum corner radius r
- 0.6 mm
- Minimum corner radius r1
- 0.6 mm
- Dynamic load rating Cr
- 45 kN
- Static load rating C0r
- 56.3 kN
- Fatigue load limit Cu
- 8 kN
- Grease limiting speed
- 4,900 rpm
- Published row text
- 32910JR | 50 | 72 | 15 | 15 | 0.6 | 0.6 | 45 | 56.3 | 8 | 4900
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.
Related Koyo bearings
Same family and bore
Metric Tapered Roller Bearings32010JRD 80 mm · T 20 mmMetric Tapered Roller Bearings33010JRD 80 mm · T 24 mmMetric Tapered Roller Bearings33110JRD 85 mm · T 26 mmMetric Tapered Roller Bearings30210CRD 90 mm · T 21.75 mmMetric Tapered Roller Bearings30210JRD 90 mm · T 21.75 mmMetric Tapered Roller Bearings32210CRD 90 mm · T 24.75 mmMetric Tapered Roller Bearings32210JRD 90 mm · T 24.75 mmMetric Tapered Roller Bearings33210JRD 90 mm · T 32 mm