NEMA 8 Mini Bipolar Stepper Motor – 1.8°

The NEMA 8 Mini Bipolar Stepper Motor is a compact motion control solution designed for precise positioning in small-scale systems. It features a 1.8° step angle with 200 steps per revolution, ensuring accurate and smooth movement. Operating at 3.2 V with 0.6 A per phase, it delivers stable performance with consistent torque output. Built for reliability, it is compatible with common motor drivers and control platforms such as Arduino, Raspberry Pi, STM32, and ESP32. It is well-suited for precision instruments, compact robotics, and lightweight automation applications.

Features

- Bipolar stepper motor configuration for precise control

- 1.8° step angle with 200 steps per revolution

- Compact NEMA 8 frame size (20 × 20 mm)

- Rated current 0.6 A per phase

- Rated voltage 3.2 V DC operation

- Holding torque up to 0.06 N·m

- Low detent torque for smooth idle positioning

- High step accuracy of ±5%

- Maximum speed up to 600 RPM (load dependent)

- Standard 4 mm shaft diameter

- Short body length for space-constrained designs

- Compatible with common stepper motor drivers

- Suitable for microcontroller platforms (Arduino, ESP32, STM32)

- Stable performance across continuous operation

- Lightweight design for embedded systems

Specifications

- Motor Type: Bipolar Stepper Motor

- Frame Size: NEMA 8 (20 × 20 mm)

- Step Angle: 1.8° per step (200 steps/rev)

- Rated Voltage: 3.2 V DC

- Rated Current: 0.6 A per phase

- Number of Phases: 2

- Coil Resistance: 5.3 ? per phase

- Holding Torque: Up to 0.06 N·m

- Detent Torque: 0.004 N·m

- Step Accuracy: ±5%

- Maximum Speed: Up to 600 RPM

- Shaft Diameter: 4 mm

- Shaft Length: 10–15 mm

- Body Length: 25–38 mm

- Operating Temperature: ?10 °C to +50 °C

- Storage Temperature: ?20 °C to +60 °C

- Compatibility: Arduino, Raspberry Pi, STM32, ESP32

Links

- NEMA 8 Mini Bipolar Stepper Motor Datasheet

NEMA 8 Hollow Shaft Steppermotor

- Stepper Stand Nema 8

Tutorials

Use CNC Stepper Motors with LEGO® Technic

How to wire a STEPPER motor and CONTROLLER