Usongshine Nema 17 Stepper Motor 42 Motor 1 5A 17HS4401 High Torque 42N cm 60oz in 42BYGH 1 8 Degree 4 Lead with 1m Cable and Connector for DIY CNC 3D Printer Pack of 3

Technical details Step Angle: 1.8 °±0.09°. Holding Torque:? 420mN.m Material: Metal. Cable Length: 1 m/piece. Motor weight: 255 g/piece. Size (L * W * H): approx. 42x42x38mm / 1.65 "x1.65" x1.88 ". Rated Current (Single Phase): DC 1.5A. Rated Voltage: DC 3.6V. Insulation Class: Class B. Phase resistance(20°?:2.4 X (1±15%??/phase. Phase Inductance(1KHz): 3.7 X (1±20%?mH/phase. Positioning torque:15 mN.m REF. Maximum no load Starting frequency:? 1500PPS. Maximum No Load Operating frequency:? 1900 PPS. Insulation resistance:?100 M?(DC 500V). Electrical limit:AC600V/1mA/1S. Moment of inertia:57.3 g.c?.