External dimensions（mm)
| d | 280 |
| D | 380 |
| T | 63.5 |
| B | 63.5 |
| C | 48 |
Inner ring
γ(minimum) | 3 |
Outer Ring
γ(minimum) | 2.5 |
ISO355
size Series
(refer to)
Installation size(mm)
| da（minimum） | 298 |
| db(maximum） | 297 |
| da(maximum） | 368 |
| da（minimum） | 352 |
| Db(minimum) | 368 |
| Sa(minimum） | 12 |
| Sb(minimum） | 15.5 |
Inner ring
γa(maximum） | 2.5 |
Outer Ring
γa（maximum） | 2 |
Location of
action point
(mm)
describe
Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
