JTEKT/Koyo DB matched pair · live catalog page 6
7218CDB
Manufacturer-published matched-pair dimensions, load ratings, fatigue limit, and limiting speed.
Live manufacturer specification row
Published specifications
- Designation
- 7218CDB
- Arrangement
- Back-to-back matched pair (DB)
- Bore d
- 90 mm
- Outside diameter D
- 160 mm
- Pair width B
- 60 mm
- Minimum corner radius r
- 2 mm
- Minimum corner radius r1
- 1 mm
- Dynamic load rating Cr
- 260 kN
- Static load rating C0r
- 223 kN
- Fatigue load limit Cu
- 12.8 kN
- Factor f0
- 14.6
- Grease limiting speed
- 4,100 rpm
- Published row text
- 7218CDB | 90 | 160 | 60 | 2 | 1 | 260 | 223 | 12.8 | 14.6 | 4100
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 pair7218BDBD 160 mm · pair width 60 mmDB matched pair7218DBD 160 mm · pair width 60 mmDB matched pair7318BDBD 190 mm · pair width 86 mmDB matched pair7318DBD 190 mm · pair width 86 mmDB matched pair7318CDBD 190 mm · pair width 86 mmDB matched pair7918CDB FYD 125 mm · pair width 36 mmDB matched pair7018BDB FYD 140 mm · pair width 48 mmDB matched pair7018DB FYD 140 mm · pair width 48 mm