JTEKT/Koyo DB matched pair · live catalog page 11
7907CDB FY
Manufacturer-published matched-pair dimensions, load ratings, fatigue limit, and limiting speed.
Live manufacturer specification row
Published specifications
- Designation
- 7907CDB FY
- Arrangement
- Back-to-back matched pair (DB)
- Bore d
- 35 mm
- Outside diameter D
- 55 mm
- Pair width B
- 20 mm
- Minimum corner radius r
- 0.6 mm
- Minimum corner radius r1
- 0.3 mm
- Dynamic load rating Cr
- 25.5 kN
- Static load rating C0r
- 19.4 kN
- Fatigue load limit Cu
- 1.1 kN
- Factor f0
- 15.7
- Grease limiting speed
- 15,000 rpm
- Published row text
- 7907CDB FY | 35 | 55 | 20 | 0.6 | 0.3 | 25.5 | 19.4 | 1.1 | 15.7 | 15000
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