External dimensions（mm)
| d | 150 |
| D | 250 |
| T | 80 |
| T3 | 83.7 |
| T4 | 92 |
γ
(minimum) | 2.1 |
Bearing code
Flat bottomed seat
loop type | 51330X |
Heart regulating ball
Face seat | 53330X |
Spherical seat
loop type | 53330XU |
size（mm)
| d1 | 245 |
| d1 | 154 |
| D2 | 200 |
| d3 | 260 |
| B | 26 |
| A | 89.5 |
| R | 200 |
Installation size(mm)
Da
(minimum） | 209 |
da
(maximum） | 191 |
γa
(maximum) | 2 |
weight(kg)(refer to)
Flat bottomed seat
loop type | 15 |
Heart regulating ball
Facial shape | 17.3 |
Spherical seat
loop type | 20.5 |
describe
51330X Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
