... Massager. 2.Main voltage:3V, 6V,9V,12V,24V,36V 3.bldc m DS-BL4260 12v 20000rpm bldc1.Main voltage:3V; 6V;9V ... ;12V;24V;2.Typical applications:Air Pump,Electric Bicycle ... .Standard Shaft: 90,96,100,112,120(mm)4.Our 12v 20000rpm bldc is with high torque ,low noise ,good quality ...