JTEKT/Koyo DB matched pair · live catalog page 1
7301DB
Manufacturer-published matched-pair dimensions, load ratings, fatigue limit, and limiting speed.
Live manufacturer specification row
Published specifications
- Designation
- 7301DB
- Arrangement
- Back-to-back matched pair (DB)
- Bore d
- 12 mm
- Outside diameter D
- 37 mm
- Pair width B
- 24 mm
- Minimum corner radius r
- 1 mm
- Minimum corner radius r1
- 0.6 mm
- Dynamic load rating Cr
- 22.7 kN
- Static load rating C0r
- 10.5 kN
- Fatigue load limit Cu
- 0.82 kN
- Factor f0
- Not published
- Grease limiting speed
- 16,000 rpm
- Published row text
- 7301DB | 12 | 37 | 24 | 1 | 0.6 | 22.7 | 10.5 | 0.82 | - | 16000
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 pair7201BDBD 32 mm · pair width 20 mmDB matched pair7201DBD 32 mm · pair width 20 mmDB matched pair7201CDBD 32 mm · pair width 20 mmDB matched pair7901CDB FYD 24 mm · pair width 12 mmDB matched pair7001BDB FYD 28 mm · pair width 16 mmDB matched pair7001DB FYD 28 mm · pair width 16 mmDB matched pair7001CDB FYD 28 mm · pair width 16 mmDB matched pair7201BDB FYD 32 mm · pair width 20 mm