External dimensions（mm)
| d | 30 |
| D | 52 |
| T | 16 |
| T3 | 17.8 |
| T4 | 20 |
γ
(minimum) | 0.6 |
Bearing code
Flat bottomed seat
loop type | 51206 |
Heart regulating ball
Face seat | 53206 |
Spherical seat
loop type | 53206U |
size（mm)
| d1 | 52 |
| d1 | 32 |
| D2 | 42 |
| d3 | 55 |
| B | 5.5 |
| A | 22 |
| R | 45 |
Installation size(mm)
Da
(minimum） | 43 |
da
(maximum） | 39 |
γa
(maximum) | 0.6 |
weight(kg)(refer to)
Flat bottomed seat
loop type | 0.137 |
Heart regulating ball
Facial shape | 0.154 |
Spherical seat
loop type | 0.183 |
describe
51206 Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
