Characteristics1.type:JSM B1A-3N40/3N44-D6/12/242.voltage:6,12,24V3.R.P.M:50004.Weight:50g5.Transmissble torque:0.3NmB1 series micro magnetic brakes are our patent product,they have high speed of reaction,low power and strong torque.They are fit for non-shuttle wearing machines,medical machinesequipment and other autocontrol machinery.