JTEKT/Koyo Metric Tapered Roller Bearings · live catalog page 7
30310DJR
Manufacturer-published tapered-roller dimensions, load ratings, fatigue load limit, and limiting speed.
Bore d50 mmOutside diameter D110 mmOverall width T29.25 mmDynamic rating Cr144 kNKoyo calculation tool ↗
Live manufacturer specification row
Published specifications
- Designation
- 30310DJR
- Family
- Metric Tapered Roller Bearings
- Bore d
- 50 mm
- Outside diameter D
- 110 mm
- Overall width T
- 29.25 mm
- Inner ring width B
- 27 mm
- Minimum corner radius r
- 2.5 mm
- Minimum corner radius r1
- 2 mm
- Dynamic load rating Cr
- 144 kN
- Static load rating C0r
- 133 kN
- Fatigue load limit Cu
- 19.8 kN
- Grease limiting speed
- 3,100 rpm
- Published row text
- 30310DJR | 50 | 110 | 29.25 | 27 | 2.5 | 2 | 144 | 133 | 19.8 | 3100
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 Bearings32910JRD 72 mm · T 15 mmMetric 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 mm