External dimensions（mm)
| d | 360 |
| D | 440 |
| T | 65 |
| T3 | — |
| T4 | — |
γ
(minimum) | 2 |
Bearing code
Flat bottomed seat
loop type | 51172X |
Heart regulating ball
Face seat | — |
Spherical seat
loop type | — |
size（mm)
| d1 | 436 |
| d1 | 364 |
| D2 | — |
| d3 | — |
| B | — |
| A | — |
| R | — |
Installation size(mm)
Da
(minimum） | 408 |
da
(maximum） | 392 |
γa
(maximum) | 2 |
weight(kg)(refer to)
Flat bottomed seat
loop type | 21.5 |
Heart regulating ball
Facial shape | — |
Spherical seat
loop type | — |
describe
51172X Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
