External dimensions（mm)
| d | 17 |
| D | 30 |
| T | 9 |
| T3 | — |
| T4 | — |
γ
(minimum) | 0.3 |
Bearing code
Flat bottomed seat
loop type | 51103 |
Heart regulating ball
Face seat | — |
Spherical seat
loop type | — |
size（mm)
| d1 | 30 |
| d1 | 18 |
| D2 | — |
| d3 | — |
| B | — |
| A | — |
| R | — |
Installation size(mm)
Da
(minimum） | 25 |
da
(maximum） | 22 |
γa
(maximum) | 0.3 |
weight(kg)(refer to)
Flat bottomed seat
loop type | 0.025 |
Heart regulating ball
Facial shape | — |
Spherical seat
loop type | — |
describe
51103 Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
