External dimensions（mm)
| D2 | 120 |
| d | 140 |
| D | 200 |
| t1 | 81 |
| T5 | 86.2 |
| T7 | 99 |
γ
(minimum) | 1.5 |
| γ1(minimum) | 1.1 |
Bearing code
Flat bottomed seat
loop type | 52228X |
Heart regulating ball
Facial shape | 54228X |
Spherical seat
loop type | 54228XU |
size（mm)
| d3 | 199.5 |
| d1 | 143 |
| D2 | 170 |
| d3 | 210 |
| T2 | 49.5 |
| T6 | 52.1 |
| T8 | 58.5 |
| B | 18 |
| B | 17 |
| A1 | 83.5 |
| R | 160 |
Installation size(mm)
da
(maximum） | 170 |
γa
(maximum) | 1.5 |
γb
(maximum) | 1 |
weight（kg）
（refer to）
Flat bottomed seat
loop type | 8.01 |
Heart regulating ball
Facial shape | 8.87 |
Spherical seat
loop type | 11.2 |
describe
52228X Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
