1Combined with 0.2 steel plate, the H550 motor not only has high torque, but also high efficiency. 2Motor adopts high magnetic energy product N45SH magnetic steel, temperature resistance up to 150. 3Grade 6 magnetic steel forms a powerful magnetic field. Suitable for RC helicopter. Better protection of copper wire from damage. 4The motor adopts 220 hightemperature enameled wire, and the outlet bushing is changed to carbon fiber shell, which is strong in fire prevention. 5Highspeed motors are a test of bearings and shafts. Therefore, on the H550 motor, we installed original imported bearings, and the shaft material was changed to HRC 55 degree stainless steel, which improved the defects of the previous shaft. Item Type: H550 3538 1200KV Brushless MotorWeight: Approx.373g/13.2ozMaterial: Aluminum Alloy + CopperColor: BlackProduct Size: Approx. 60x44mm/2.4x1.7inShaft Diameter: Approx. 6mm/0.2inShaft Length: Approx. 35mm/1.4inCurrent: 60APower: 3000WKV Valve: 1200KVPlug: 5mm/0.2in Banana HeadApplication: RC Remote Control Helicopter 1 x Motor3 x Heat Shrinkable Tube3 x Copper Tube5 x Screw1 x Manual