12V and 24V Brushless DC Motor Both external controller and integrated electronics are ... 75 and 85mmVoltage: 24V DC, 220V AC (310V DC)Poles: 4 polesNo-loading speed: 4300, 5200 and 9,000rpmRated power: 28, 35, 43 ... and 45WRated speed: 3,400, 4,000 and 8,000rpmRated current: 0,37A (AC), 1 ... external controllerCustomized motor requirements are welcome 42mm Brushless DC Motor