JTEKT/Koyo deep groove ball bearing · Non-contact sealed
6312 2RU
Manufacturer-published boundary dimensions, basic load ratings, fatigue limit, and f0 factor.
Live manufacturer specification row
Published specifications
- Designation
- 6312 2RU
- Classification
- Non-contact sealed
- Bore d
- 60 mm
- Outside diameter D
- 130 mm
- Width B
- 31 mm
- Minimum corner radius r
- 2.1 mm
- Basic dynamic load rating Cr
- 102 kN
- Basic static load rating C0r
- 52.2 kN
- Fatigue load limit Cu
- 3.95 kN
- Factor f0
- 13.2
- Published row text
- 6312 2RU | 60 | 130 | 31 | 2.1 | 102 | 52.2 | 3.95 | 13.2
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 ZZ6812 ZZD 78 mm · B 10 mmShielded ZZ6912 ZZD 85 mm · B 13 mmShielded ZZ6012 ZZD 95 mm · B 18 mmShielded ZZ6212 ZZD 110 mm · B 22 mmShielded ZZ6312 ZZD 130 mm · B 31 mmNon-contact sealed6812 2RUD 78 mm · B 10 mmNon-contact sealed6912 2RUD 85 mm · B 13 mmNon-contact sealed6012 2RUD 95 mm · B 18 mm