The Nema 17 Stepper is a motive couple stepwise powerfully with a torsional stress superior to the hybrid stepping motors standard, because of the utilization of powerful special magnets instead of the permanent traditional magnets.
The SY42STH47-1684A takes 1,8 degrees as step and a torsional stress of 4,4kg/cm (43,15N/cm)
Step Angle (⁰):1.8 Temperature Rise (⁰C): 80 Max Ambient temperature (⁰C): 20~+50 Number of Phase: 2 Insulation Resistance: 100 MΩ Min (500VDC) Insulation Class: Class B Max. radial force (N): 28 (20mm from the flange) Max. axial force (N): 10 Rated Voltage (V): 2.8 Rated Current (A): 1.68 Resistance Per Phase (±10%Ω): 1.65 (25⁰C) Inductance Per Phase (±20%mH): 2.8 Holding Torque (Kg*cm): 4.4 Detent Torque (g*cm): 200 Rotor Inertia (g*cm²): 68 Weight (Kg): 0.365
Important: The length of the cable of this engine is 15 mm and the connector JST SMP-04V-BC, specific for the model BCN3D +.