External dimensions（mm)
| d | 57.15 |
| D | 144.983 |
| T | 36 |
| B | 33.236 |
| C | 23.007 |
Inner ring
γ(minimum) | 3.5 |
Outer Ring
γ(minimum) | 3.5 |
Bearing code
| Inner ring | 78225 |
| Outer Ring | 78571 |
Installation size (mm)
| da | 83 |
| db | 77 |
| da | 118 |
| db | 132 |
| Inner circle γa（maximum） | 3.5 |
| Outer circle γa（maximum） | 3.5 |
Location of
action point(mm)
weight（kg）
（refer to）
| Inner ring | 1.68 |
| Outer Ring | 1.08 |
describe
Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
