Bearing
| ISO | 6904 2RS |
| GOST | 1180904 8882-75 6904 2RS |
| Inner diameter (d, mm) | 20 |
| Outer diameter (D, mm) | 37 |
| Width (height) (B, mm) | 9 |
| Weight (m,kg) | 0,3700 |
| Dynamic bearing capacity (C, kH) | 6,4 |
| Static bearing capacity (Co, kH) | 3,7 |
| Speed at the grease (n prev. Rev / min) | 12000 |
| Speed at the liquid lubricant (n prev. Rev / min) | 22000 |