1.Variable ratio electric engine gearbox 2.Body material,aluminium alloy and cast iron 3 ... 1) High precision of speed regulating for electric engine gearbox,precise exact to 0.5-1 round2) Large speed-changing ... power,assorted as UDL0.18,UDL0.37,UDL0.55,UDL0.75,aluminium alloy body; UD1.1,UD1.5,UD2.2 ... 18---7.5kw Basic information, Variable Ratio Electric Engine Gearbox,Footed Mounted Mechanical variator