Stepper Motor: Bipolar, 200 Steps/Rev, 35×28mm, 10V, 0.5 A/Phase (POLOLU-1208)

This NEMA 14-size hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 500 mA at 10 V, allowing for a holding torque of 1 kg-cm (14 oz-in).

Shaft type:	5 mm "D"
Steps per revolution:	200
Current rating:	500 mA2
Voltage rating:	10 V
Holding torque:	14 oz·in
Resistance:	20 Ohm2
Inductance per phase:	13.5 mH
Number of leads:	4
Lead length:	30 cm

 

Size:	35 mm square × 28 mm1
NEMA size:	14
Weight:	140 g
Shaft diameter:	5 mm

 

This hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 500 mA at 10 V, allowing for a holding torque of 1 kg-cm (14 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. Pololu 5 mm universal mounting hub can be used to mount objects on the stepper motor’s 5 mm-diameter output shaft.

Specifications

• Size: 35 mm square × 28 mm, not including the shaft (NEMA 14)
• Weight: 140 g (5 oz)
• Shaft diameter: 5 mm “D”
• Steps per revolution: 200
• Current rating: 500 mA per coil
• Voltage rating: 10 V
• Resistance: 20 Ω per coil
• Holding torque: 1 kg-cm (14 oz-in)
• Inductance: 13.5 mH per coil
• Lead length: 30 cm (12″)

More specifications are available in the datasheet (185k pdf).

Dimensions

The following diagram shows the stepper motor dimensions in mm. The dimension labeled “length” is 28 mm. The output D-shaft has a length of 21 mm and a 5 mm diameter with a section that is flattened by 0.5 mm. This shaft works with our 5 mm universal mounting hub.