External dimensions（mm)
| d | 30 |
| D | 60 |
| T | 21 |
| T3 | 22.6 |
| T4 | 25 |
γ
(minimum) | 1 |
Bearing code
Flat bottomed seat
loop type | 51306 |
Heart regulating ball
Face seat | 53306 |
Spherical seat
loop type | 53306U |
size（mm)
| d1 | 60 |
| d1 | 32 |
| D2 | 45 |
| d3 | 62 |
| B | 7 |
| A | 22 |
| R | 50 |
Installation size(mm)
Da
(minimum） | 48 |
da
(maximum） | 42 |
γa
(maximum) | 1 |
weight(kg)(refer to)
Flat bottomed seat
loop type | 0.267 |
Heart regulating ball
Facial shape | 0.28 |
Spherical seat
loop type | 0.336 |
describe
51306 Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
