External dimensions（mm)
| d | 82.55 |
| D | 150.089 |
| T | 44.45 |
| B | 46.672 |
| C | 36.512 |
Inner ring
γ(minimum) | 3.5 |
Outer Ring
γ(minimum) | 3.3 |
Bearing code
| Inner ring | 749A |
| Outer Ring | 742 |
Installation size (mm)
| da | 98 |
| db | 93 |
| da | 135 |
| db | 143 |
| Inner circle γa（maximum） | 3.5 |
| Outer circle γa（maximum） | 3.3 |
Location of
action point(mm)
weight（kg）
（refer to）
| Inner ring | 2.26 |
| Outer Ring | 1.07 |
describe
Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
