This bipolar Nema 23 stepper motor with step angle 1.8deg and size 57x57*56mm. It has 4 wires, each phase draws 2.8A, with holding torque 130Ncm.

Electrical Specification :

• Manufacturer Part Number: 57HS56-2804A

• Motor Type: Bipolar Stepper

• Step Angle: 1.8 deg

• Holding Torque: 130Ncm

• Rated Current/phase: 2.8A

• Voltage: 2.3V

• Phase Resistance: 15ohms

• Inductance: 32mH ± 20%(1KHz)

Physical Specification : 

• Frame Size: 57 x 57mm

• Body Length: 56mm

• Shaft Diameter: 8mm

• Shaft Length: 20mm

• D-cut Length: 20mm

• Number of Leads: 4

• Lead Length: 500mm

• Weight: 700g