Specification of DC gear motor:

Voltage(v): 6,

Free-load:-----------[speed(rpm):23          Current(A):0.020]

At max eff-----------[Speed(rpm):21        Current(A):0.063     Torque(mNm):25.8      eff%:14.9]

At max power-----[Torque(mNm):38.5     Speed(rpm):19      Current(A):0.09   Power(w):0.07],,