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Miniature Stepper Motors
MicroMo's 2-phase miniature stepper motors are constructed with two different technologies. The AM series motors are constructed with a patented technology allowing for maximum power in a small package. The rotor is designed using NdFeB magnets placed equidistantly on the rotor hub. The ADM series motors are constructed with a magnetized disk magnet hub. Both designs reduce the number of components needed for assembly and provide for high reliability and outstanding shock and vibration resistance. These unique miniature stepper motor designs result in a reliable, powerful, and quiet motor in a very small size.
MicroMo offers the following miniature stepper motor products:
stepper motor white space
2-Phase Miniature Stepper Motors
1-Phase Stepper Motors
Description 2-phase Miniature Stepper Motors 1-phase Miniature Stepper Motors
Motor Diameter 6 ... 22 mm 8 mm
Motor Length 9.3 ... 16.5 mm 6.4 mm
Shaft Diameter 0.8 ... 3 mm 0.5 mm
Voltage Mode 3 ... 24 V 1...5.1 V
Current Mode 0.225 ... 0.6 A
Full Steps per Revolution 20 ... 24 6...24
Step Angle Accuracy ±5 % of Full Step ±5 % of Full Step
Holding Torque 0.2 ... 26 mNm 0.02...0.075 mNm
Links to Data Sheets [2- phase Miniature Stepper Motors Data Sheets] [1-phase Miniature Stepper Motors Data Sheets]
Features and Benefits
Brushless construction - long service life
High power density - powerful motor in a small package
Speed range up to 16,000 RPM using a current controlled chopper drive - dynamic speed range
Operation in full step, half step, and micro step modes - perfect for positioning applications
Positioning without need for an encoder - No costly feedback components needed for speed and position control
Simple drive circuit - easy to control
Compatible with MicroMo Precision Gearheads, Encoders, and Linear Acuators - complete miniature DC stepper motor drive system possible
Applications
Medical and laboratory equipment
Instrumentation
Factory automation and robotics
Industrial machinery and equipment
Telecommunications
Aerospace and aviation
Optical, video, and audio
Environmental and safety
Hobby and quality modelling


Stepper Motor Ordering Guide
This 2-page guide give information on how to order stepper motors including:

- Shaft type
- Motor Series
- Voltage or Current Options
- Phase Resistance
- Gearhead series
Stepper Motor Ordering Guide

Why Steppers Lose Steps
This 4-page tutorial introduces the options to analyze step loss by checking:

- Motor Selection
- Analysis of running test results
- Back-driving
- External Commutation Errors
Why Steppers Lose Steps

Microstepping: Myths and Realities
This 3-page tutorial discusses the myths and realities of microstepping including:

- Accuracy
- Resolution
Microstepping: Myths and Realities
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