External dimensions（mm)
| d | 80 |
| D | 115 |
| T | 28 |
| T3 | 29.5 |
| T4 | 33 |
γ
(minimum) | 1 |
Bearing code
Flat bottomed seat
loop type | 51216 |
Heart regulating ball
Face seat | 53216 |
Spherical seat
loop type | 53216U |
size（mm)
| d1 | 115 |
| d1 | 82 |
| D2 | 98 |
| d3 | 120 |
| B | 10 |
| A | 46 |
| R | 90 |
Installation size(mm)
Da
(minimum） | 101 |
da
(maximum） | 94 |
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 | 1.23 |
describe
51216 Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
