External dimensions（mm)
| d | 240 |
| D | 340 |
| T | 78 |
| T3 | 81.6 |
| T4 | 92 |
γ
(minimum) | 2.1 |
Bearing code
Flat bottomed seat
loop type | 51248X |
Heart regulating ball
Face seat | 53248X |
Spherical seat
loop type | 53248XU |
size（mm)
| d1 | 335 |
| d1 | 244 |
| D2 | 290 |
| d3 | 350 |
| B | 30 |
| A | 122 |
| R | 250 |
Installation size(mm)
Da
(minimum） | 299 |
da
(maximum） | 281 |
γa
(maximum) | 2 |
weight(kg)(refer to)
Flat bottomed seat
loop type | 23.7 |
Heart regulating ball
Facial shape | 25.6 |
Spherical seat
loop type | 30.7 |
describe
51248X Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
