Patent ID: 6878089

Claim:
A planetary gear unit in an electrically operated brake for reducing the rotational speed from a drive shaft of an electric motor to an outgoing rotating means, which transmits a brake applying rotational movement to the brake, comprising a first planet wheel between a sun wheel gearing on an ingoing first shaft and a first internal gearing in a housing of the unit, a crank arm, on which the first planet wheel is rotationally arranged and which is rigidly connected to a second shaft coaxial with the first shaft, at least one second planet wheel between a second sun wheel gearing on the second shaft and a second internal gearing in the housing of the unit, and an outgoing gear, which is coaxial with the first and second shafts and to which the at least one second planet wheel is rotatably connected, characterized in that the first and second shafts are journalled in relation to each other by means of a radial bearing and in that the outgoing gear is journalled on the second shaft by means of radial bearings.