External dimensions（mm)
| d | 75 |
| D | 110 |
| T | 27 |
| T3 | 28.3 |
| T4 | 32 |
γ
(minimum) | 1 |
Bearing code
Flat bottomed seat
loop type | 51215 |
Heart regulating ball
Face seat | 53215 |
Spherical seat
loop type | 53215U |
size（mm)
| d1 | 110 |
| d1 | 77 |
| D2 | 92 |
| d3 | 115 |
| B | 9.5 |
| A | 49 |
| R | 90 |
Installation size(mm)
Da
(minimum） | 96 |
da
(maximum） | 89 |
γa
(maximum) | 1 |
weight(kg)(refer to)
Flat bottomed seat
loop type | 0.845 |
Heart regulating ball
Facial shape | 1.27 |
Spherical seat
loop type | 1.11 |
describe
51215 Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
