External dimensions（mm)
| d | 50 |
| D | 95 |
| T | 31 |
| T3 | 34.3 |
| T4 | 37 |
γ
(minimum) | 1.1 |
Bearing code
Flat bottomed seat
loop type | 51310 |
Heart regulating ball
Face seat | 53310 |
Spherical seat
loop type | 53310U |
size（mm)
| d1 | 95 |
| d1 | 52 |
| D2 | 72 |
| d3 | 100 |
| B | 11 |
| A | 28 |
| R | 72 |
Installation size(mm)
Da
(minimum） | 77 |
da
(maximum） | 68 |
γa
(maximum) | 1 |
weight(kg)(refer to)
Flat bottomed seat
loop type | 0.931 |
Heart regulating ball
Facial shape | 1.01 |
Spherical seat
loop type | 1.27 |
describe
51310 Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
