External dimensions（mm)
| D2 | 190 |
| d | 220 |
| D | 300 |
| t1 | 110 |
| T5 | 115.2 |
| T7 | 134 |
γ
(minimum) | 2 |
| γ1(minimum) | 2 |
Bearing code
Flat bottomed seat
loop type | 52244X |
Heart regulating ball
Facial shape | 54244X |
Spherical seat
loop type | 54244XU |
size（mm)
| d3 | 299 |
| d1 | 224 |
| D2 | 260 |
| d3 | 310 |
| T2 | 67 |
| T6 | 69.6 |
| T8 | 79 |
| B | 24 |
| B | 25 |
| A1 | 114 |
| R | 225 |
Installation size(mm)
da
(maximum） | 260 |
γa
(maximum) | 2 |
γb
(maximum) | 2 |
weight（kg）
（refer to）
Flat bottomed seat
loop type | 25.2 |
Heart regulating ball
Facial shape | 27.8 |
Spherical seat
loop type | 34.1 |
describe
52244X Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
