Device for regulating the position of a tandem axle

The equalization system (10) is applied to the central pivot (16) of the bogie. There is a central drive shaft (12) with gear teeth engaging at least one planet gear (32) rolling round inside a ring gear (76) bolted (82) to the housing (18). The planet gear shafts (30) are fastened to an axle housing (14). The central drive shaft is surrounded by a cylinder (24) with vertical dividers defining the spaces (44) in which the vanes for turning the bogie operate.