External dimensions（mm)
| d | 60.325 |
| D | 122.238 |
| T | 38.1 |
| B | 36.678 |
| C | 30.162 |
Inner ring
γ(minimum) | 2.3 |
Outer Ring
γ(minimum) | 3.3 |
Bearing code
| Inner ring | 558 |
| Outer Ring | 553X |
Installation size (mm)
| da | 73 |
| db | 69 |
| da | 108 |
| db | 115 |
| Inner circle γa（maximum） | 2.3 |
| Outer circle γa（maximum） | 3.3 |
Location of
action point(mm)
weight（kg）
（refer to）
| Inner ring | 1.33 |
| Outer Ring | 0.692 |
describe
Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
