Other Crank MechanismsChina Zltech 6.5inch 36V 48V 250W 5n. M 100kg Load Electric Wheel Rubber Tire Single Shaft Double BLDC Hub Servo Motor with Encoder for Patrol Robot, Find details about China Brushless DC Hub Motor, Zltech Hub Servo Motor from Zltech 6.5inch 36V 48V 250W 5n. M 100kg Load Electric Wheel Rubber Tire Single Shaft Double BLDC Hub Servo Motor with Encoder for Patrol Robot