Stepper Motor: Bipolar, 200 Steps/Rev, 35x28mm, 10V, 500mA

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 1000 g-cm (14 oz-in).


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 1000 g-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.

Our 5mm universal mounting hub can be used to mount objects on the stepper motor’s 5mm-diameter output shaft.

    Size: 35 mm square x 28 mm, not including the shaft (NEMA 14)
    Weight: 140 g (5 oz)
    Shaft diameter: 5 mm
    Steps per revolution: 200
    Current rating: 500 mA per coil
    Voltage rating: 10 V
    Resistance: 20 Ohm per coil
    Holding torque: 1000 g-cm (14 oz-in)
    Inductance: 13.5 mH per coil
    Lead length: 12 in

Bipolar stepper motor wires are terminated with bare leads.
Bipolar stepper motor wiring diagram.

The following diagram shows the stepper motor dimensions in mm. The dimension labeled “length” is 28 mm. The output shaft has a length of 21 mm and a diameter of 5 mm.

The inside of a bipolar stepper motor.

Stepper Motor Applications

Stepper motors are generally used in a variety of applications where precise position control is desirable and the cost or complexity of a feedback control system is unwarranted. Here are a few applications where stepper motors are often found:

    CNC machines
    3D printer/prototyping machines
    Laser cutters
    Pick and place machines
    Linear actuators
    Hard drives



Size:     35 mm square x 28 mm1
Weight:     140 g
Shaft diameter:     5 mm
General specifications
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
Lead length:     12 in


1    Not including the shaft.
2    Per coil.