Wheels: Center hole: 5.3MM x 3.66MM Diameter: 66MM Width: 2.66MM
Gear Motor:Operating voltage: 3V ~ 12V DC (recommended value is 6 ~ 8V) Maximum torque: 800g.cm (3V) Speed without load: 170 Rpm (3V) Reduction ratio: 1:48 Load current: 70mA (250mA MAX) (3V pm)With EMC, it has strong anti-interference ability and causes no interference to micro-controller