External dimensions（mm)
| d | 190 |
| D | 320 |
| T | 105 |
| T3 | 111 |
| T4 | 121 |
γ
(minimum) | 4 |
Bearing code
Flat bottomed seat
loop type | 51338X |
Heart regulating ball
Face seat | 53338X |
Spherical seat
loop type | 53338XU |
size（mm)
| d1 | 315 |
| d1 | 195 |
| D2 | 255 |
| d3 | 330 |
| B | 33 |
| A | 104 |
| R | 250 |
Installation size(mm)
Da
(minimum） | 266 |
da
(maximum） | 244 |
γa
(maximum) | 3 |
weight(kg)(refer to)
Flat bottomed seat
loop type | 36.5 |
Heart regulating ball
Facial shape | 38.1 |
Spherical seat
loop type | 44.7 |
describe
51338X Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
