External dimensions（mm)
| d | 140 |
| D | 240 |
| T | 80 |
| T3 | 84.9 |
| T4 | 92 |
γ
(minimum) | 2.1 |
Bearing code
Flat bottomed seat
loop type | 51328X |
Heart regulating ball
Face seat | 53328X |
Spherical seat
loop type | 53328XU |
size（mm)
| d1 | 235 |
| d1 | 144 |
| D2 | 190 |
| d3 | 250 |
| B | 26 |
| A | 68 |
| R | 180 |
Installation size(mm)
Da
(minimum） | 199 |
da
(maximum） | 181 |
γa
(maximum) | 2 |
weight(kg)(refer to)
Flat bottomed seat
loop type | 14.2 |
Heart regulating ball
Facial shape | 16.3 |
Spherical seat
loop type | 19.5 |
describe
51328X Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
