浮动轮由四个支重轮单轮总成和2个角铁四根轴组成，位于履带底盘中间，一般比正常的支重轮小一号或者一样大 起减震作用。
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.
