I am looking for an approximate range to the following specs: Rated Voltage: 18VDC No load speed: 291RPM No Load current: 2.7Amps Gear Ratio: 1:67 Rated Torque: 92kgcm Rated Speed: 260RPM Rated Current: 18.7Amps Motor length without Shaft: 125mm Shaft Length: 27mm Motor Dia: 46mm Shaft Dia: 8mm Gearbox Breaking Torque: 200kgcm