JTEKT/Koyo DB matched pair · live catalog page 14
7912CDB FY
Manufacturer-published matched-pair dimensions, load ratings, fatigue limit, and limiting speed.
Live manufacturer specification row
Published specifications
- Designation
- 7912CDB FY
- Arrangement
- Back-to-back matched pair (DB)
- Bore d
- 60 mm
- Outside diameter D
- 85 mm
- Pair width B
- 26 mm
- Minimum corner radius r
- 1 mm
- Minimum corner radius r1
- 0.6 mm
- Dynamic load rating Cr
- 47.2 kN
- Static load rating C0r
- 43.6 kN
- Fatigue load limit Cu
- 2.35 kN
- Factor f0
- 16.3
- Grease limiting speed
- 9,100 rpm
- Published row text
- 7912CDB FY | 60 | 85 | 26 | 1 | 0.6 | 47.2 | 43.6 | 2.35 | 16.3 | 9100
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 pair7212BDBD 110 mm · pair width 44 mmDB matched pair7212DBD 110 mm · pair width 44 mmDB matched pair7212CDBD 110 mm · pair width 44 mmDB matched pair7312BDBD 130 mm · pair width 62 mmDB matched pair7312DBD 130 mm · pair width 62 mmDB matched pair7312CDBD 130 mm · pair width 62 mmDB matched pair7012BDB FYD 95 mm · pair width 36 mmDB matched pair7012DB FYD 95 mm · pair width 36 mm