| 84 | Reactors nuclear, boilers, equipment and mechanical devices; their parts |
| 8483 | Transmission shafts (including cam and crank shafts) and cranks; bearing housings and sliding bearing shafts gears and gearing; ball or roller screws; gear boxes and other speed changers, including gidrot |
| 848390 | Toothed wheels, chain sprockets and other elements of transmission, represent the individual; parts |
| 84839020 | Parts of bearing housings |