Long working life (>10,000 hours) Low noise, high torque Excellent performance characteristics High efficiency (>90%) Specifications: Voltage:24V/36V/48V/72V Rated Power:3KW-7.5KW Efficeincy: 88% Speed: 2000-6000rpm (customizable) Casing: AluSmartum Length (height): 126mm Diameter: 206mm Shaft: customizable Features: Compact design,Water resistent, Stainless Steel Shaft, Self Cooling Fan ...