External dimensions（mm)
| d | 77.788 |
| D | 121.442 |
| T | 24.608 |
| B | 23.012 |
| C | 17.462 |
Inner ring
γ(minimum) | 3.5 |
Outer Ring
γ(minimum) | 2 |
Bearing code
| Inner ring | 34306 |
| Outer Ring | 34478 |
Installation size (mm)
| da | 90 |
| db | 84 |
| da | 110 |
| db | 116 |
| Inner circle γa（maximum） | 3.5 |
| Outer circle γa（maximum） | 2 |
Location of
action point(mm)
weight（kg）
（refer to）
| Inner ring | 0.612 |
| Outer Ring | 0.316 |
describe
Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
