brushless dc motor 1)low cost 2)low noise Description of brushless dc motorsSpecification of brushless motor:Rated power(W):32Rated voltage(VDC):24Current(A):1.8Number of poles:4Rated rotational speed(rpm):3000Rated torque(N.M):0.1Peak torque(N.M):0.35Moment constant(N.m/A)0.057Length(mm):51Weight(kg):0.35 4 poles brushless dc motor