Nema 17 Stepper Bipolar L=34mm w/ Gear Ratio 27:1 Small Planetary Gearbox

This custom Nema 17 stepper motor with 34mm body and 0.4A rated current, integrated a 28mm diameter Planetary gearbox of 26.85:1 gear ratio. It's a good solution to applications that with special space but need low speed and/or high torque.

Electrical Specification

• Manufacturer Part Number: 17HS13-0404S-CG27
• Motor Type: Bipolar Stepper
• Step Angle: 0.67deg
• Holding Torque without Gearbox: 22Ncm(31.2oz.in)
• Rated Current/phase: 0.4A
• Phase Resistance: 30ohms
• Inductance: 27mH ± 20%(1KHz)

Gearbox Specifications

• Gearbox Type: Planetary
• Gear Ratio: 26.85:1
• Efficiency: 81%
• Backlash at No-load: <=1deg
• Max.Permissible Torque: 3Nm(425oz.in)
• Moment Permissible Torque: 5Nm(708oz.in)
• Shaft Maximum Axial Load: 5N
• Shaft Maximum Radial Load: 25N

Physical Specifications

• Frame Size: 42 x 42mm
• Motor Length: 34mm
• Gearbox Length: 37mm
• Shaft Diameter: Φ6mm
• Shaft Length: 18mm
• D-cut Length: 12mm
• Number of Leads: 4
• Lead Length: 500mm
• Weight: 400g

Connection