This is high precision bipolar Nema 17 stepper motor with 0.9 deg. step angle (400 steps/revolution). Each phase draws current 1.68A, allowing for a holding torque of 44Ncm(62.3oz.in).

Electrical Specification:

• Manufacturer Part Number: 17HM19-1684S
• Motor Type: Bipolar Stepper
• Step Angle: 0.9 deg.
• Holding Torque: 44Ncm(62.3oz.in)
• Rated Current/phase: 1.68A
• Phase Resistance: 1.65ohms
• Inductance: 4.1mH+/-20%(1KHz)

Physical Specification:

• Frame Size: 42 x 42mm
• Body Length: 47mm
• Shaft Diameter: 5mm
• Shaft Length: 20mm
• D-cut Length: 15mm
• Number of Leads: 4
• Lead Length: 500mm
• Weight: 370g

Connection:

Black(A+), Green(A-), Red(B+), Blue(B-)

Warning:

Make sure the motor connect to a constant current or chopper drive controller before you test motor. Connecting the motor directly to a power supply will destroy the motor.