External dimensions（mm)
| D2 | 170 |
| d | 200 |
| D | 280 |
| t1 | 109 |
| T5 | 115.6 |
| T7 | 133 |
γ
(minimum) | 2 |
| γ1(minimum) | 2 |
Bearing code
Flat bottomed seat
loop type | 52240X |
Heart regulating ball
Facial shape | 54240X |
Spherical seat
loop type | 54240XU |
size（mm)
| d3 | 279 |
| d1 | 204 |
| D2 | 240 |
| d3 | 290 |
| T2 | 66.5 |
| T6 | 69.8 |
| T8 | 78.5 |
| B | 24 |
| B | 23 |
| A1 | 120.5 |
| R | 225 |
Installation size(mm)
da
(maximum） | 240 |
γa
(maximum) | 2 |
γb
(maximum) | 2 |
weight（kg）
（refer to）
Flat bottomed seat
loop type | 23.1 |
Heart regulating ball
Facial shape | 23.2 |
Spherical seat
loop type | 30.6 |
describe
52240X Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
