... kyb travel motor) consist of variable displacement high speed axial piston motor, multi-disc brake, planetary gearbox and functional valves. ... been widely applied in crawler excavator , crawler cranes, road milling machine , road header, road roller, track vehicles, aerial platform, ... drives with built-in hydraulic motor1 stands for output of gearbox (Nm)2 stands for T-travel drives,L-wheel drives3 ...