Type of Gear :Metal & Nylon Motor Type :Ferrite brush motor Operating Voltage :4.8v - 6v Neutral pulse :1.5 ms Travel angle :40-45 degree at +/-400ms Dead Band :1-2ms (Adjustable) Speed :0.11(sec/60°at 4.8v) Torque :1.2(kg/cm at 4.8v) Weight :10g Size :21.8 x 11 x 19.8(mm)