Overview
This hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 280 mA at 7.4 V, allowing for a holding torque of 650 g-cm (9 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:     35 mm square × 26 mm1
• NEMA size:     14
• Weight:     130 g
• Shaft diameter:     5 mm
• Shaft type:     5 mm "D"
• Steps per revolution:     200
• Current rating:     280 mA2
• Voltage rating:     7.4 V
• Holding torque:     9 oz·in
• Resistance:     26 Ohm2
• Inductance per phase:     19.2 mH
• Number of leads:     4
• Lead length:     12 in