JTEKT/Koyo DB matched pair · live catalog page 4
7212BDB
Manufacturer-published matched-pair dimensions, load ratings, fatigue limit, and limiting speed.
Live manufacturer specification row
Published specifications
- Designation
- 7212BDB
- Arrangement
- Back-to-back matched pair (DB)
- Bore d
- 60 mm
- Outside diameter D
- 110 mm
- Pair width B
- 44 mm
- Minimum corner radius r
- 1.5 mm
- Minimum corner radius r1
- 1 mm
- Dynamic load rating Cr
- 114 kN
- Static load rating C0r
- 89.2 kN
- Fatigue load limit Cu
- 5.25 kN
- Factor f0
- Not published
- Grease limiting speed
- 3,200 rpm
- Published row text
- 7212BDB | 60 | 110 | 44 | 1.5 | 1 | 114 | 89.2 | 5.25 | - | 3200
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 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 pair7912CDB FYD 85 mm · pair width 26 mmDB matched pair7012BDB FYD 95 mm · pair width 36 mmDB matched pair7012DB FYD 95 mm · pair width 36 mm