External dimensions（mm)
| d | 46.038 |
| D | 80.962 |
| T | 19.05 |
| B | 17.462 |
| C | 14.288 |
Inner ring
γ(minimum) | 0.8 |
Outer Ring
γ(minimum) | 1.5 |
Bearing code
| Inner ring | 13181 |
| Outer Ring | 13318 |
Installation size (mm)
| da | 52 |
| db | 52 |
| da | 72 |
| db | 76 |
| Inner circle γa（maximum） | 0.8 |
| Outer circle γa（maximum） | 1.5 |
Location of
action point(mm)
weight（kg）
（refer to）
| Inner ring | 0.236 |
| Outer Ring | 0.144 |
describe
Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
