External dimensions（mm)
| D2 | 20 |
| d | 25 |
| D | 52 |
| t1 | 34 |
| T5 | 37.6 |
| T7 | 42 |
γ
(minimum) | 1 |
| γ1(minimum) | 0.3 |
Bearing code
Flat bottomed seat
loop type | 52305 |
Heart regulating ball
Facial shape | 54305 |
Spherical seat
loop type | 54305U |
size（mm)
| d3 | 52 |
| d1 | 27 |
| D2 | 38 |
| d3 | 55 |
| T2 | 21 |
| T6 | 22.8 |
| T8 | 25 |
| B | 8 |
| B | 6 |
| A1 | 18 |
| R | 45 |
Installation size(mm)
da
(maximum） | 38 |
γa
(maximum) | 1 |
γb
(maximum) | 0.3 |
weight（kg）
（refer to）
Flat bottomed seat
loop type | 0.324 |
Heart regulating ball
Facial shape | 0.35 |
Spherical seat
loop type | 0.434 |
describe
52305 Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
