This NEMA 17-size hybrid bipolar stepping motor has an integrated 18 cm (7″) threaded rod as its output shaft, turning it into a linear actuator capable of precision open-loop positioning. The included traveling nut has four mounting holes and moves 40 µm (1.6 mil) per full step; finer resolution can be achieved with microstepping. The stepper motor has a 1.8° step angle (200 steps/revolution) and each phase draws 1.7 A at 2.8 V, allowing for a holding torque of 3.7 kg-cm (51 oz-in).

• Size: 42.3 mm square × 38 mm, not including the shaft (NEMA 17)
• NEMA size: 17
• Leadscrew: Tr 8 × 8(P2)
• Weight: 352gr

Specifications:

• Size: 42.3 mm square × 38 mm, not including the shaft (NEMA 17)
  
• Leadscrew: Tr 8 × 8(P2)
  
• Steps per revolution: 200
  
• Linear step size: 40 µm (1.6 mil) per full step
  
• Current rating: 1.68 A per coil
  
• Voltage rating: 2.8 V
  
• Resistance: 1.65 Ω per coil
  
• Holding torque: 3.7 kg-cm (51 oz-in)
  
• Inductance: 3.2 mH per coil
  
• Lead length: 16 cm (6.5″)
  
• Output shaft supported by two ball bearings

Datasheet