JTEKT/Koyo DB matched pair · live catalog page 11
7407BDB FY
Manufacturer-published matched-pair dimensions, load ratings, fatigue limit, and limiting speed.
Live manufacturer specification row
Published specifications
- Designation
- 7407BDB FY
- Arrangement
- Back-to-back matched pair (DB)
- Bore d
- 35 mm
- Outside diameter D
- 100 mm
- Pair width B
- 50 mm
- Minimum corner radius r
- 1.5 mm
- Minimum corner radius r1
- 1 mm
- Dynamic load rating Cr
- 114 kN
- Static load rating C0r
- 68.6 kN
- Fatigue load limit Cu
- 4.9 kN
- Factor f0
- Not published
- Grease limiting speed
- 4,300 rpm
- Published row text
- 7407BDB FY | 35 | 100 | 50 | 1.5 | 1 | 114 | 68.6 | 4.9 | - | 4300
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 pair7207BDBD 72 mm · pair width 34 mmDB matched pair7207DBD 72 mm · pair width 34 mmDB matched pair7207CDBD 72 mm · pair width 34 mmDB matched pair7307BDBD 80 mm · pair width 42 mmDB matched pair7307DBD 80 mm · pair width 42 mmDB matched pair7307CDBD 80 mm · pair width 42 mmDB matched pair7407BDBD 100 mm · pair width 50 mmDB matched pair7407DBD 100 mm · pair width 50 mm