JTEKT/Koyo DB matched pair · live catalog page 11
7008CDB FY
Manufacturer-published matched-pair dimensions, load ratings, fatigue limit, and limiting speed.
Live manufacturer specification row
Published specifications
- Designation
- 7008CDB FY
- Arrangement
- Back-to-back matched pair (DB)
- Bore d
- 40 mm
- Outside diameter D
- 68 mm
- Pair width B
- 30 mm
- Minimum corner radius r
- 1 mm
- Minimum corner radius r1
- 0.6 mm
- Dynamic load rating Cr
- 41.7 kN
- Static load rating C0r
- 31.8 kN
- Fatigue load limit Cu
- 1.9 kN
- Factor f0
- 15.4
- Grease limiting speed
- 12,000 rpm
- Published row text
- 7008CDB FY | 40 | 68 | 30 | 1 | 0.6 | 41.7 | 31.8 | 1.9 | 15.4 | 12000
Verification boundary
What still needs to match
Arrangement and contact angleConfirm DB arrangement, contact angle, precision, preload, and complete suffix.
Fits and geometryVerify shaft/housing seats, shoulders, fillets, spacers, and axial clamping.
DutyCheck combined radial/axial load, stiffness, speed, lubrication, temperature, and required life.
Current dataUse the linked JTEKT/Koyo calculation and CAD tools before ordering.
Related Koyo DB pairs
Same bore dimension
DB matched pair7208BDBD 80 mm · pair width 36 mmDB matched pair7208DBD 80 mm · pair width 36 mmDB matched pair7208CDBD 80 mm · pair width 36 mmDB matched pair7308BDBD 90 mm · pair width 46 mmDB matched pair7308DBD 90 mm · pair width 46 mmDB matched pair7308CDBD 90 mm · pair width 46 mmDB matched pair7408BDBD 110 mm · pair width 54 mmDB matched pair7408DBD 110 mm · pair width 54 mm