The miniature DE810-3 constant-current motor has 8mm diameters and 10mm long diameters. It can be used in micro-sumo robots or in small executive systems. The motor has a diameter of 1mm. It is powered by 3V. PrädkoĂ?Ĺ?Ä?Ĺ? 20,500 [rev / min].The miniature DE810-3 constant-current motor has 8mm diameters and 10mm long diameters. It can be used in micro-sumo robots or in small executive systems. The motor has a diameter of 1mm. It is powered by 3V. PrädkoĂ?Ĺ?Ä?Ĺ? 20,500 [rev / min].