External dimensions（mm)
| d | 220 |
| D | 300 |
| T | 63 |
| T3 | 65.6 |
| T4 | 75 |
γ
(minimum) | 2 |
Bearing code
Flat bottomed seat
loop type | 51244X |
Heart regulating ball
Face seat | 53244X |
Spherical seat
loop type | 53244XU |
size（mm)
| d1 | 297 |
| d1 | 224 |
| D2 | 260 |
| d3 | 310 |
| B | 25 |
| A | 118 |
| R | 225 |
Installation size(mm)
Da
(minimum） | 268 |
da
(maximum） | 252 |
γa
(maximum) | 2 |
weight(kg)(refer to)
Flat bottomed seat
loop type | 13.6 |
Heart regulating ball
Facial shape | 14.9 |
Spherical seat
loop type | 18 |
describe
51244X Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
