This high precision NEMA 17 Stepper motor has an integrated Planetary gearbox with a 26.85:1 gear ratio, the resolution reach 0.067 deg. step angle. It's a good solution in applications that need very low rotation speeds and/or lots of torque.

Electrical Specification:

• Manufacturer Part Number: 17HS19-1684S-PG27
• Motor Type: Bipolar Stepper
• Step Angle: 0.067 deg.
• Holding Torque: 3Nm
• Rated Current/phase: 1.68A
• Phase Resistance: 1.65ohms
• Inductance: 2.8mH+/-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: 48mm
• Gearbox Length: 35mm
• Shaft Diameter: 8mm
• Shaft Length: 20mm
• D-cut Length: 15mm
• Number of Leads: 4
• Lead Length: 500mm
• Weight: 570g

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.