从动Reibrollenpaaren地板下车轮车床具有两个重新塑形铁路Radreifenumrisse轮组，其可以根据一个轮组，其中，每个摩擦辊对的摩擦辊被单独地连接到各自的旋转驱动，并各有一个的Radreifenumriß被压设置为平行于轮组轴枢转轴线 区分用于均匀地按压摩擦辊和用于轴的自动对准的特征在于，对于每两个产生枢转运动，并且具有一个PneumatikBalgzylinder（76，77，78，79），每个枢转驱动器（13，14，15，16） 一对与旋转致动器（13，14，15，16），以一个同步装置（80,81）相关联的摩擦辊（11，12）被耦合。

An underfloor wheel lathe for reprofiling the Radreifenumrisse of railway wheel sets, with two driven Reibrollenpaaren that can be pressed depending on a Radreifenumriß a wheelset, the friction rollers of each pair of friction rollers individually connected to a respective pivot drive and pivotable about a respective arranged parallel to the wheelset axle pivot axis are distinguished for uniformly pressing the friction rollers and for automatically aligning the wheelset by the fact that each pivoting drive (13, 14, 15, 16) for producing the pivoting movement a pneumatic bellows cylinder (76, 77, 78, 79) and that two a pair of friction rollers (11, 12) associated with rotary actuators (13, 14, 15, 16) to a synchronization device (80, 81) are coupled.