External dimensions（mm)
| d | 30 |
| D | 70 |
| T | 28 |
| T3 | 30.1 |
| T4 | 33 |
γ
(minimum) | 1 |
Bearing code
Flat bottomed seat
loop type | 51406 |
Heart regulating ball
Face seat | 53406 |
Spherical seat
loop type | 53406U |
size（mm)
| d1 | 70 |
| d1 | 32 |
| D2 | 50 |
| d3 | 75 |
| B | 9 |
| A | 20 |
| R | 56 |
Installation size(mm)
Da
(minimum） | 54 |
da
(maximum） | 46 |
γa
(maximum) | 1 |
weight(kg)(refer to)
Flat bottomed seat
loop type | 0.519 |
Heart regulating ball
Facial shape | 0.535 |
Spherical seat
loop type | 0.666 |
describe
51406 Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
