Nema 17 Stepper Motor

Nema 17 Stepper Motor (L=39mm w/ Gear Ratio 50:1) with 39mm body and 1.68A rated current, integrated with a 48.3mm Planetary gearbox of 50:1 gear ratio.
It’s a good solution to applications that with special space but need low speed and/or high torque.

Electrical Specifications:

• Manufacturer Part Number: 17HS15-1684S-HG50
• Motor Type: Bipolar Stepper
• Step Angle: 0.036 deg
• Holding Torque without Gearbox: 39Ncm(55oz.in)
• Rated Current/phase: 1.68A
• Phase Resistance: 1.6ohms
• Voltage: 2.7V
• Inductance: 3.2mH ± 20%(1KHz)

Gearbox Specifications:

• Gearbox Type: Planetary
• Gear Ratio: 50 : 1
• Efficiency: 90%
• Backlash at No-load: <=25 arcmin
• Max. Permissible Torque: 15Nm(2124oz.in)
• Moment Permissible Torque: 25Nm(3540oz.in)
• Max. Radial Load: 150N
• Ambient Temperature: -10 – 90℃
• Insulation Class: B
• Noise: <=50 dB
• Life: 20000 h

Physical Specifications:

• Frame Size: 42 x 42mm
• Motor Length: 39mm
• Gearbox Length: 48.3mm
• Shaft Diameter: Φ8mm
• Shaft Length: 23.5mm
• Key-way Length: 14mm
• Number of Leads: 4
• Lead Length: 320mm
• Weight: 880g

Connection: