External dimensions（mm)
| d | 20 |
| D | 51.994 |
| T | 15.011 |
| B | 14.26 |
| C | 12.7 |
Inner ring
γ(minimum) | 1.5 |
Outer Ring
γ(minimum) | 1.3 |
Bearing code
| Inner ring | 7079 |
| Outer Ring | 7204 |
Installation size (mm)
| da | 27.5 |
| db | 27 |
| da | 45 |
| db | 48 |
| Inner circle γa（maximum） | 1.5 |
| Outer circle γa（maximum） | 1.3 |
Location of
action point(mm)
weight（kg）
（refer to）
| Inner ring | 0.105 |
| Outer Ring | 0.061 |
describe
Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
