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A compact NEMA-8 bipolar stepper motor with the same 1.8° step angle (200 steps/revolution) as full-size NEMA-17 motors, but in a much smaller 20 × 30 mm pac...

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A compact NEMA-8 bipolar stepper motor with the same 1.8° step angle (200 steps/revolution) as full-size NEMA-17 motors, but in a much smaller 20 × 30 mm package. Ideal for compact CNC builds, small robotics, and space-constrained motion control projects.

This 4-wire bipolar stepper is rated for 600 mA maximum current and 3.9 V, making it compatible with common stepper motor drivers and shields. With a non-current-limiting driver, 5 V DC power works well.

Key Features

  • 1.8° Step Angle – 200 steps per revolution for smooth, precise motion
  • NEMA-8 Form Factor – Compact 20 × 30 mm body
  • 4-Wire Bipolar – Compatible with standard stepper drivers and motor shields
  • 600 mA Max Current – Easy to drive with common controllers
  • Ready-to-Go Wires – Pre-attached cable for direct connection

Specifications

  • Step Angle – 1.8° (200 steps/rev)
  • Rated Voltage – 3.9 V
  • Max Current – 600 mA
  • Motor Type – Bipolar, 4-wire
  • Body Size – 20 × 30 mm (NEMA-8)

Ideal For

  • Compact CNC machines and 3D printer components
  • Small robotics and miniature motion control
  • Arduino and Raspberry Pi motor projects
  • Space-constrained precision positioning

Package Contents

  • 1× NEMA-8 Bipolar Stepper Motor with pre-attached wires
Note: Wire colours may vary between batches. Common wiring orders for motor shields:
Green/Black/Yellow/Red wires: Black, Red, (skip ground), Green, Yellow
Yellow/Red/Orange/Blue wires: Red, Blue, (skip ground), Yellow, Orange
The drive shaft does not have a D-cut but can be clamped easily.

Jargon buster

Plain-language definitions for the technical terms used above.

DC
DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.

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