Advantage for Coreless

  No nonlinearities in the control behavior

2.Advantage coreless: no iron losses
  No iron core - no iron losses
  Constantly impressed magnetization
  High efficiency, up to over 90%
  Low no-load current, typically < 50 mA
  Does not apply to EC motors
  No saturation effects in the iron core
 Even at the highest currents the produced torque is proportional to the motor current.
  Stronger magnets = stronger motors

3.Advantage coreless: compact design

  more efficient design of the magnetic circuit
  (even with a larger air gap)
  Compact magnet in the centre
  High power density
  Small rotor mass inertia
  Hollow cylinder vs. plain cylinder
  High dynamics
  Typical acceleration times: 5 - 50 ms

4.Advantage coreless: low inductance
  Less brush fire
  Commutation: Closing and opening of a contact over an inductive load
  Longer service life
  Less electromagnetic emissions
  Easier to suppress interferences:
  Capacitor between connections
  Ferrite core at motor cable
  Fast current reaction
  Might cause problems with pulsed supply (pulse width modulation PWM)
  Motor choke needed?