empowering creative people

Stepper Motor: Bipolar, 200 Steps/Rev, 28×32mm, 3.8V, 0.67 A/Phase

SKU: POLOLU-1205

$26.06 AUD, inc GST
$23.69 AUD, exc GST

More Views

Stepper Motor: Bipolar, 200 Steps/Rev, 28×32mm, 3.8V, 0.67 A/Phase
26.06 AUD

SKU: POLOLU-1205

$26.06 AUD, inc GST
$23.69 AUD, exc GST
In stock, with a short lead time. 268 units dispatch in 4 to 9 days (in addition to the shipping method you choose). Our timing and stock is accurate. Delivery to you by Mon, 28th of Aug with Express Post within Australia.

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

Overview

This hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 670 mA at 3.5 V, allowing for a holding torque of 600 g-cm (8.3 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 Pololu recommend using a bipolar stepper motor driver.

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

Specifications

  • Size: 28 mm square × 32 mm, not including the shaft (NEMA 11)
  • Weight: 110 g (4 oz)
  • Shaft diameter: 5 mm “D”
  • Steps per revolution: 200
  • Current rating: 670 mA per coil
  • Voltage rating: 3.8 V
  • Resistance: 5.6 Ω per coil
  • Holding torque: 600 g-cm (8.3 oz-in)
  • Inductance: 4.2 mH per coil
  • Lead length: 30 cm (12″)

More specifications are available in the datasheet (44k pdf).

Dimensions

The following diagram shows the stepper motor dimensions in mm. The dimension labeled “Length” is 32 mm. The output D-shaft has a length of 20 mm and a 5 mm diameter with a section that is flattened by 0.5 mm. This shaft works with Pololu's 5 mm universal mounting hub.

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:

  • Printers
  • CNC machines
  • 3D printer/prototyping machines (e.g. RepRap)
  • Laser cutters
  • Pick and place machines
  • Linear actuators
  • Hard drives

Pololu’s assortment of stepper motors.

Note: This stepper motor is SOYO part number SY28STH32-0674A.

Documentation and Resources:

Product Comments

We deliver Australia-wide with these options:

  • $3 for Small Items (4-6 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.32 for Express Post (1-2 days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address:

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Please checkout our customer service page if you have other frequently asked questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.