External dimensions（mm)
| D2 | 85 |
| d | 100 |
| D | 170 |
| t1 | 97 |
| T5 | 105.4 |
| T7 | 115 |
γ
(minimum) | 1.5 |
| γ1(minimum) | 1 |
Bearing code
Flat bottomed seat
loop type | 52320 |
Heart regulating ball
Facial shape | 54320 |
Spherical seat
loop type | 54320U |
size（mm)
| d3 | 170 |
| d1 | 103 |
| D2 | 135 |
| d3 | 175 |
| T2 | 59 |
| T6 | 63.2 |
| T8 | 68 |
| B | 21 |
| B | 18 |
| A1 | 42 |
| R | 125 |
Installation size(mm)
da
(maximum） | 135 |
γa
(maximum) | 1.5 |
γb
(maximum) | 1 |
weight（kg）
（refer to）
Flat bottomed seat
loop type | 8.82 |
Heart regulating ball
Facial shape | 9.47 |
Spherical seat
loop type | 11.6 |
describe
52320 Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
