bearings
| ISO | NNU 4976 K |
| GOST | NNU 4976 K 4162976 |
| Inner diameter (d, mm) | 380 |
| Outer diameter (D, mm) | 520 |
| Width (height) (B, mm) | 140 |
| Weight (m,kg) | 87,5 |
| Dynamic bearing capacity (C, kH) | - |
| Static bearing capacity (Co, kH) | - |
| Speed at the grease (n prev. Rev / min) | - |
| Speed at the liquid lubricant (n prev. Rev / min) | - |