42mm planetary gear motor: 1.ratio:3.7-3720 2.Speed:10-1500 RPM 3.motor with encoder,3-16pps 4.Large torque and low noise 24mm dc motor with gearbox,with planetary gearbox,Can be equipped with encoder Medical equipment specialized gear motor1.Widely used in robot,lock. Auto shutter, USB fan,Slot machine,Money detector, Coin refund devices,Currency count machine, Towel dispensers, Automai\tic ...