STEPPERONLINE Nema 17 Pancake Stepper Motor 1A 17Ncm Bipolar 1.8 Degree 4-Lead 23mm Body Length for 3D Printer CNC Extruder

This bipolar Nema 17 stepper motor with step angle 1.8deg and size 42x42x23mm. It has 4 wires, each phase draws current 1A, with holding torque 17Ncm. Electrical Specification *Manufacturer Part Number: 17HE08-1004S *Motor Type: Bipolar Stepper *Step Angle: 1.8 deg *Holding Torque: 17Ncm *Rated Current/phase: 1A *Phase Resistance: 3.6ohms *Inductance: 4.00mH ± 20%(1KHz) Physical Specification *Frame Size: 42 x 42mm *Body Length: 23mm *Shaft Diameter: ?5mm *Shaft Length: 20mm *D-cut Length: 17mm *Number of Leads: 4 *Lead Length: 1000mm *Weight: 180g Connection A+: Black, A-: Blue, B+: Green, B-: Red 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.