The picture above shows the X-TEAM internal motor
The picture above shows the X-TEAM external motor
Definition of inner rotor brushless motor and outer rotor brushless motor:
1: Inner rotor brushless motor: The motor shaft will rotate, the coil is in the motor casing, and the magnet is in the shaft center.
2: Outer rotor brushless motor; means that the motor casing will rotate, the coil is at the axis, and the magnet is on the casing.
Advantages of inner rotor brushless motor and outer rotor brushless motor:
1: The advantages of the inner rotor brushless motor: Generally speaking, because of its small diameter, it is more conducive to the high-speed torque.
2: The advantages of the outer rotor brushless motor: it has better heat dissipation and larger diameter, which is more conducive to the low-speed torque.
Brushless motors are generally nominally of diameter and length, such as: 2030: that is, the diameter of the motor is 20mm and the length is 30mm (the diameter is in front and the length is in the back).
How to distinguish between a helicopter motor or an aircraft motor:
1: According to the front pull and the back push: the helicopter generally uses a front pull motor (referring to the motor which is placed in front of the machine); the aircraft generally uses a pushback motor (referring to the motor which is placed behind the machine).
2: According to the magnet: There are 6 magnets in the motor for helicopters; there are 12 magnets in the motor for the aircraft.
3: According to the KV value of the motor: Generally speaking, the KV value of the unmanned motor is relatively low; the KV value of the helicopter motor is relatively high.
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