Planetary gearbox device comprising oil feed nozzles and oil feed channels arranged eccentrically inside planet gears, corresponding industrial gearbox, corresponding use, and corresponding method

A method for providing oil medium in a planetary gear unit apparatus in a vertical mill, said method comprising:

• supplying and feeding an oil medium via at least one nozzle provided in/on a gear unit housing of the planetary gear unit apparatus;
• and
• conducting the oil medium at least in an axial portion which overlaps with planetary gears of the planetary gear unit apparatus via feed channels, arranged eccentrically in planetary shafts of the planetary gears and running axially therein, to a respective bearing of the planetary gears in such a way that, based on a relative movement of gear unit components, the oil medium is conducted to the respective bearing of the respective planetary gear and is discharged from there, in particular is conducted via exclusively axially running channel portions to the bearings of the respective planetary gear and is discharged via exclusively radially running channel portions from a planetary carrier of the planetary gear unit apparatus, wherein the at least one nozzle is arranged in an oil-communicating relation/arrangement with respect to a circulating diameter of the feed channels.