Planetary wheelhub for driving the driving wheel of an industrial vehicle and the like

A motor wheel for driving the driving wheel of an industrial vehicle and the like, comprising, upstream of a two-stage rotary-ring reduction unit (2), a gearbox (3) with fixed-ring epicyclic gear train, with at least two positions which respectively correspond to the high or travel speed and to the low or working speed. A parking brake (41) is further provided downstream of the gearbox (3) with respect to the motion input.