STEPPERONLINE 0.9deg Nema 17 Stepper Motor 36Ncm 0.9A 42x42x40mm 4-lead for DIY 3D Printer CNC

• 36Ncm(51oz.in) holding torque
• NEMA 17 bipolar 4-wire
• 0.9 deg. step angle
• Rated current 0.9A & resistance 6.0ohms

This bipolar Nema 17 stepper motor with step angle 0.9deg and size 42x42x39mm. It has 4 wires, each phase draws current 0.9A, with holding torque 36Ncm (51oz.in). Electrical Specification *Manufacturer Part Number: 17HM15-0904S *Motor Type: Bipolar Stepper *Step Angle: 0.9 deg *Holding Torque: 36Ncm(51oz.in) *Rated Current/phase: 0.9A *Voltage: 5.4V *Phase Resistance: 6.0ohms *Inductance: 12.0mH ± 20%(1KHz) Physical Specification *Frame Size: 42 x 42mm *Body Length: 40mm *Shaft Diameter: Φ5mm *Shaft Length: 22mm *D-cut Length: 15mm *Number of Leads: 4 *Lead Length: 300mm *Weight: 280g 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.