浮動輪由四個支重輪單輪總成和2個角鐵四根軸組成，位于履帶底盤中間，一般比正常的支重輪小一號或者一樣大  起減震作用。

The floating wheel is composed of four single wheel assembly and two Angle iron four shafts, located in the middle of the track chassis, generally smaller than the normal heavy wheel or the same size to play a damping role.