JTEKT/Koyo deep groove ball bearing · Shielded ZZ
6909 ZZ
Manufacturer-published boundary dimensions, basic load ratings, fatigue limit, and f0 factor.
Live manufacturer specification row
Published specifications
- Designation
- 6909 ZZ
- Classification
- Shielded ZZ
- Bore d
- 45 mm
- Outside diameter D
- 68 mm
- Width B
- 12 mm
- Minimum corner radius r
- 0.6 mm
- Basic dynamic load rating Cr
- 17.7 kN
- Basic static load rating C0r
- 10.9 kN
- Fatigue load limit Cu
- 0.6 kN
- Factor f0
- 15.9
- Published row text
- 6909 ZZ | 45 | 68 | 12 | 0.6 | 17.7 | 10.9 | 0.6 | 15.9
Verification boundary
What still needs to match
Designation and sealingConfirm the complete bearing number and exact shield/seal construction.
Fit and geometryVerify shaft/housing fits, shoulders, fillets, internal clearance, and installation constraints.
DutyCheck speed, temperature, lubrication, contamination, load direction, and required life.
Current manufacturer dataUse the linked JTEKT/Koyo calculation tool and current catalog before ordering.
Related Koyo bearings
Same bore dimension
Shielded ZZ6809 ZZD 58 mm · B 7 mmShielded ZZ6009 ZZD 75 mm · B 16 mmShielded ZZ6209 ZZD 85 mm · B 19 mmShielded ZZ6309 ZZD 100 mm · B 25 mmNon-contact sealed6809 2RUD 58 mm · B 7 mmNon-contact sealed6909 2RUD 68 mm · B 12 mmNon-contact sealed6009 2RUD 75 mm · B 16 mmNon-contact sealed6209 2RUD 85 mm · B 19 mm