External dimensions（mm)
| D2 | 85 |
| d | 100 |
| D | 150 |
| t1 | 67 |
| T5 | 72.8 |
| T7 | 81 |
γ
(minimum) | 1.1 |
| γ1(minimum) | 1 |
Bearing code
Flat bottomed seat
loop type | 52220 |
Heart regulating ball
Facial shape | 54220 |
Spherical seat
loop type | 54220U |
size（mm)
| d3 | 150 |
| d1 | 103 |
| D2 | 125 |
| d3 | 155 |
| T2 | 41 |
| T6 | 43.9 |
| T8 | 48 |
| B | 15 |
| B | 14 |
| A1 | 49 |
| R | 112 |
Installation size(mm)
da
(maximum） | 125 |
γa
(maximum) | 1 |
γb
(maximum) | 1 |
weight（kg）
（refer to）
Flat bottomed seat
loop type | 4.08 |
Heart regulating ball
Facial shape | 4.54 |
Spherical seat
loop type | 5.64 |
describe
52220 Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
