<p>Nema 17 42mm 2-phase 4-wire hybrid DC stepper motor, used in various types of equipment for accurate rotation angle and speed control, compact body with strong high torque and smooth motion, popular choice for DIY maker and 3d printer</p><p><br /><br /> <b>Electrical Specification</b><br /><br /> <ul> <li>Manufacturer Part Number: 17HS15-1704S</li> <li>Motor Type: Bipolar Stepper</li> <li>Step Angle: 1.8 deg </li> <li>Maximum Holding Torque: 44 Ncm(62.31oz-in)</li> <li>Rated Current/phase: 1.7 A</li> <li>Phase Resistance: 2.7 ohms</li> <li>Inductance: 3.55 mH ± 20%(1KHz)</li><br /><br /> <b>Physical Specification</b><br /><br /> <li>Frame Size: 1.65" x 1.65" (42 x 42 mm)</li> <li>Body Length: 1.48" (37.5 mm)</li> <li>Shaft Diameter: Φ0.2"(Φ5 mm)</li> <li>Full D-cut Shaft Length: 0.87" (22 mm)</li> <li>Number of Leads: 4</li> <li>Lead Length: 39.37" (1000 mm)</li> <li>Weight: 9.88oz(280 g)</li><br /><br /> <b>Connection</b><br /><br /> <li>Red(A+), Black(A-), Blue(B+), Green(B-)</li> <br /><br /> <b>Package Included</b><br /><br /> <li>1-Piece Nema 17 stepper motor</li>