Single or multistage planetary gearbox has input and/or output shaft of at least one planet stage and/or of whole gearbox mounted on ball bearings, with at least one ball bearing as sealed bearing with separate nil loss sealing ring

摘要

The single or multistage planetary gearbox has the input and/or output shaft of at least one planet stage and/or of the whole gearbox mounted on ball bearings (4). At least one ball bearing is a sealed bearing, and a separate sealing ring as a nil loss ring (7) is installed on at least one ball bearing for inner gear sealing. Consequently, with an overpressure inside the gear, especially as a result of temperature increases, the gear remains sealed so that no lubricant escapes. An Independent claim is included for a model range of single or multistage planetary gears, one variant having a shaft stub on the drive shaft, and a second variant having a flange as the driven component.