25H Sprocket 55T for Ebike 330mm Trapezoidal 4 Start Lead Screw 8mm Thread 2mm Pitch Lead Screw with Copper Nut The TEC1-12715 operates on the

25H Sprocket 55T for Ebike 330mm Trapezoidal 4 Start Lead Screw 8mm Thread 2mm Pitch Lead Screw with Copper Nut The TEC1 12715 operates on the The TEC1 12715 operates on the Peltier effect when DC current flows through the 127 bismuth telluride thermocouple pairs inside the module Electric Vehicle Propulsion: Compatible with custom built electric vehicles and robotics platforms requiring 22 This means the gearbox components are not exposed to additional forces and have a consistent level of precision The ideal sequence is for the propulsive effort of the rider first to be transmitted through the central Pinion gearbox and then boosted as required by an electric motor