Overview
This hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 1.7 A at 2.8 V, allowing for a holding torque of 3.7 kg-cm (51 oz-in). The motor has four color-coded wires terminated with bare leads: black and green connect to one coil; red and blue connect to the other. It can be controlled by a pair of suitable H-bridges (one for each coil), but we recommend using a bipolar stepper motor driver.

Though not shown in the diagram, the output is a D-shaft with a section that is flattened by 0.5 mm.

Specifications

• Size:     42.3 mm square × 38 mm (NEMA 17)
  
• NEMA size:     17
• Weight:     285 g (10 oz)
  
• Shaft diameter:     5 mm "D"
  
• Steps per revolution:     200
• Current rating:     1.68 A per coil
  
• Voltage rating:     2.8 V
• Resistance:     1.65 Ohm per coil
  
• Holding torque:     3.7 kg-cm (51 oz·in)
• Inductance:     3.2 mH per coil
  
• Lead length:     12 in