External dimensions（mm)
| d | 4.762 |
| D | 12.7 |
| B | 3.967 |
| B1 | 4.978 |
| γ(minimum) | 0.3 |
Rated speed min-1
grease
Open type
Z·ZZ | 43000 |
oil
Open type
Z | 53000 |
Bearing code
| Open type | R3 |
| dust cover type | R3 ZZ |
Installation size(mm)
| da（minimum） | 6.8 |
| db(maximum） | 6.5 |
| Da（maximum） | 10.7 |
| db(maximum） | 11.2 |
| γa（maximum） | 0.3 |
weight(g)(refer to)
| Open type | 2.21 |
| dust cover type | 2.79 |
describe
Bearings are mainly used in industries such as construction machinery, machine tools, automobiles, metallurgy, mining, petroleum, machinery, electricity, and railways
