Disc Brushless Motor AX-4008D KV620 for Multi Rotor QuadCopter, Hexacopter, Octocopters

Features:

1.Machined aluminum front housing with fan-style cooling holes that pump air through the motor while it runs.
2.Rear threaded mounting holes.
3.Specially designed NdFeB magnets with high temperature rating for trouble-free operation.
4.High Temperature 140 C (356 F) rated wire is used for winding the motors to minimize the risk of burning up the motor.
5.High quality stator plates are epoxy coated on the inner surface to prevent winding shorts.
6.High quality shielded and permanently lubricated ball bearings are used to support the motor shaft in all our motors.
7.High temperature adhesives are used to secure the stator windings and prevent them from shifting and getting pinched orshorting out