bearings
| ISO | 6311 N |
| GOST | 6311 N 50311 |
| Inner diameter (d, mm) | 55 |
| Outer diameter (D, mm) | 120 |
| Width (height) (B, mm) | 29 |
| Weight (m,kg) | 1,3700 |
| Dynamic bearing capacity (C, kH) | 71,5 |
| Static bearing capacity (Co, kH) | 45 |
| Speed at the grease (n prev. Rev / min) | 5600 |
| Speed at the liquid lubricant (n prev. Rev / min) | 6700 |