Reduce the no-load torque method has the following kinds: -

Reduce the no-load torque method has the following kinds:
(1)Or reduce the motor rotor brushless motor stator iron loss, improve plate material mark
(2)Reduce wind friction loss of the motor rotor, the rotor surface roughness level increased. USES the magnetic slot wedge mud filling the stator slot, USES the long rotor.
(3)Correct selection of bearings, unfavorable use over requirements of large bearings, strictly control the slide bearing processing requirement, reasonable selection of the clearance between ball bearings and slide, reasonable choose bearing grease
(4)Motor racing I0 motor no-load current I0 = T0 / KT