... ) shaft diameter: 24mm 4) CE, ISO Ac three phase synchronous induction motor has such advantage as high efficiency,energy-saving,low noise ... performance. They are easy for installation and maintenanceac three phase synchronous induction motor Specifications: ModelFHB31322Step Angle(°)1.2Length L(mm)215Holding ... can design according to clients' requirement. ac three phase synchronous induction motor