External dimensions（mm)
| d | 150 |
| D | 215 |
| T | 50 |
| T3 | 53.3 |
| T4 | 60 |
γ
(minimum) | 1.5 |
Bearing code
Flat bottomed seat
loop type | 51230X |
Heart regulating ball
Face seat | 53230X |
Spherical seat
loop type | 53230XU |
size（mm)
| d1 | 212 |
| d1 | 153 |
| D2 | 180 |
| d3 | 225 |
| B | 20.5 |
| A | 79 |
| R | 160 |
Installation size(mm)
Da
(minimum） | 189 |
da
(maximum） | 176 |
γa
(maximum) | 1.5 |
weight(kg)(refer to)
Flat bottomed seat
loop type | 5.52 |
Heart regulating ball
Facial shape | 6.09 |
Spherical seat
loop type | 7.82 |
describe
51230X Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
