why the stator core is important for a BLDC motors

BLDC MOTOR TORQUE

Motor torque is the amount of rotational force that a motor generates during operation. The key components involved in producing torque are the magnet, the winding and the flux path. The higher the number of pole pairs in the magnet, the higher the amount of brushless motor torque for the same dissipated power. Copper content of the winding contributes to the power provided by the motor while flux path guides all of the magnetic field in the usable channel, minimizing losses. The stator core for a brushless motors is crucial for the flux path, normally a high quality stator stacks can improve the flux paths of the motors and lower the iron loss and improve the motor efficiency.