Three-phase 57 Nema23 series hybrid stepping motor, the selection of high-quality raw materials and high-specification permanent magnet silicon steel sheet, with high positioning accuracy, large output torque, fast response frequency, low operating noise, good dynamic characteristics, quality and reliable. Motor length 40.5mm ~ 102mm, the torque range: 0.45N.m ~ 2N.m, motor shaft diameter  6.35mm, 8 mm.