Electric motor without charcoal 14 poles specially studied for use with lithium batteries. Neodym magnets. Mounted on ball bearings. Possible assembly on both sides. Silicone cables. Very light. Food 7.4 to 12V. Number of laps/V: 1100. Power: 40W. Intensity: 6a (8a max). Diameter: 28.8mm. Length: 15mm. Weight: 33g. Axis: Dia.3.17 x L.9mm.