STEPPERONLINE 27:1 Planetary Gearbox Nema 17 Geared Stepper Motor 0.4A for CNC 3D Printer

• Good Torque Good Speed
• 0.067 deg. Step Angle
• NEMA 17 bipolar 4-wire
• Planetary Gearbox Ratio 26.85:1
• Rated current 0.4A & resistance 30ohms

This Nema 17 stepper motor with 33mm body and 0.4A rated current, integrated a planetary gearbox of 26.85:1 gear ratio. It's a good solution to applications that with limited space but need low speed and/or high torque. Electrical Specification *Manufacturer Part Number: 17HS13-0404S-PG27 *Motor Type: Bipolar Stepper *Step Angle: 0.067 deg *Holding Torque without Gearbox: 26Ncm(36.82oz.in) *Rated Current/phase: 0.4A *Phase Resistance: 30ohms *Voltage: 12V *Inductance: 34mH ± 20%(1KHz) Gearbox Specifications *Gearbox Type: Planetary *Gear Ratio: 26.85: 1 *Efficiency: 81% *Backlash at No-load: <=1 deg *Max.Permissible Torque: 3Nm(425oz.in) *Moment Permissible Torque: 5Nm(708oz.in) *Shaft Maximum Axial Load: 50N *Shaft Maximum Radial Load: 100N Physical Specifications *Frame Size: 42 x 42mm *Motor Length: 34mm *Gearbox Length: 35mm *Shaft Diameter: Φ6mm *Shaft Length: 18mm *D-cut Length: 12mm *Number of Leads: 4 *Lead Length: 500mm *Weight: 420g 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.