Compact planetary wheel drives, designed for a wide range of self propelled vehicles with hydraulic transmission and individually motorized wheel drives. The wide range of rations available makes it possible to adapt the reduction unit to the most suitable hydraulic transmission. RRWD/RRTD series wheel drives cover the range from 100 to 35000 Nm. They are ideal for translation control in tracked vehicles requiring reliable hydraulic disk parking brakes of the negative type. They also offer compact coupling solutions on axial piston motors and semi-integrated orbital motors. The installation and overall dimension of wheel drive are strictly designed in accordance with Italy and American manufacturers, so they can be completely interchangeable with Brevini CTU and RF series, Bonfiglioli 600 series and Reggiana Riduttori RRTD series on performance and connection dimensions.