JTEKT/Koyo Metric Tapered Roller Bearings · live catalog page 2
30205JR
Manufacturer-published tapered-roller dimensions, load ratings, fatigue load limit, and limiting speed.
Bore d25 mmOutside diameter D52 mmOverall width T16.25 mmDynamic rating Cr39.3 kNKoyo calculation tool ↗
Live manufacturer specification row
Published specifications
- Designation
- 30205JR
- Family
- Metric Tapered Roller Bearings
- Bore d
- 25 mm
- Outside diameter D
- 52 mm
- Overall width T
- 16.25 mm
- Inner ring width B
- 15 mm
- Minimum corner radius r
- 1 mm
- Minimum corner radius r1
- 1 mm
- Dynamic load rating Cr
- 39.3 kN
- Static load rating C0r
- 33.7 kN
- Fatigue load limit Cu
- 4.75 kN
- Grease limiting speed
- 7,800 rpm
- Published row text
- 30205JR | 25 | 52 | 16.25 | 15 | 1 | 1 | 39.3 | 33.7 | 4.75 | 7800
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 Bearings32005JRD 47 mm · T 15 mmMetric Tapered Roller Bearings33005JRD 47 mm · T 17 mmMetric Tapered Roller Bearings30205XRD 52 mm · T 16.25 mmMetric Tapered Roller Bearings32205XRD 52 mm · T 19.25 mmMetric Tapered Roller Bearings32205JRD 52 mm · T 19.25 mmMetric Tapered Roller Bearings33205JRD 52 mm · T 22 mmMetric Tapered Roller Bearings30305DJRD 62 mm · T 18.25 mmMetric Tapered Roller BearingsTR0506RD 62 mm · T 18.25 mm