Dia. 48mm Brushless DC Motor Both external controller and integrated electronics are optional. Key ... :Specifications: Diameter: 48 mmLength: 55, 80, 85 and 95mmVoltage: 12V DC and 24V DCPoles: 4-polesNo-loading speed: 1,000, 4 ... ,000, 4,300 and 22,000rpmRated power: 12, 18, 47 and 280WRated speed: 800, 3 ... .06, 0.13, 0.14 and 0.15Nm 48mm Brushless DC Motor