External dimensions（mm)
| d | 200 |
| D | 280 |
| T | 62 |
| T3 | 65.3 |
| T4 | 74 |
γ
(minimum) | 2 |
Bearing code
Flat bottomed seat
loop type | 51240X |
Heart regulating ball
Face seat | 53240X |
Spherical seat
loop type | 53240XU |
size（mm)
| d1 | 277 |
| d1 | 204 |
| D2 | 240 |
| d3 | 290 |
| B | 23 |
| A | 125 |
| R | 225 |
Installation size(mm)
Da
(minimum） | 248 |
da
(maximum） | 232 |
γa
(maximum) | 2 |
weight(kg)(refer to)
Flat bottomed seat
loop type | 12.3 |
Heart regulating ball
Facial shape | 13.4 |
Spherical seat
loop type | 16.1 |
describe
51240X Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
