This is one of the most popular stepper motor in Nema 17 size, it with 1.8deg step and size 42x42x40mm, It has 4 wires with 1m cable and 2.54mm pitch connector, each phase draws 2.0A, with holding torque 45Ncm (64oz.in). This stepper motor is ideal for the RepRap Prusa, Mendel 90, Rostock and similar 3D printers, as well as CNC and robotics applications.

Electrical Specification                                                                                                             

• Manufacturer Part Number: 17HS16-2004S1
• Motor Type: Bipolar Stepper
• Step Angle: 1.8 deg
• Holding Torque: 45Ncm(64oz.in)
• Rated Current/phase: 2A
• Voltage: 2.2V
• Phase Resistance: 1.1ohms
• Inductance: 2.6mH ± 20%(1KHz)

Physical Specification                                                                                                              

• Frame Size: 42 x 42mm
• Body Length: 40mm
• Shaft Diameter: Φ5mm
• Shaft Length: 23mm
• D-cut Length: 21mm
• Number of Leads: 4
• Lead Length: 1000mm
• Weight: 310g

Connection                                                                                                                               

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