Small Unipolar Stepper Motor – 5V DC 32-Step 1/16 Gearing

100.00 EGP

SKU: Stepper Motor 5V Categories:

This is a great first stepper motor, good for small projects and experimenting with steppers. This uni-polar motor has a built in mounting plate with two mounting holes. There are only 32 step (11.25 degree) per revolution, and inside is a 1/16 reduction gear set. (Actually its 1/16.032 but for most purposes 1/16 is a good enough approximation) What this means is that there are really 32*16.032 steps per revolution = 513 steps! The shaft is flattened so its easy to attach stuff to it with a set-screw. A perfect first stepper motor and works well with the Motor Shield for Arduino.
Do not?use interleaved or micro-stepping to control this motor or it will take forever to turn. Instead use single or double stepping. The torque is fairly high but its slower than un-geared steppers – we maxed out at about 50 RPM by over-driving it a bit with 9VDC. At 5V try to stick to under 25 RPM.
You must?use this motor with motor driver board/ IC to get it working, ULN2803 IC works great with this motor. Check out the ULN2803 Motor Driver board in out Store.

Series 28BYJ-48
Type Permanent Magnet Gear Motor
Coil Type Unipolar
Voltage – Rated 5VDC
Current Rating
Steps per Revolution 4096
Step Angle 0.088?
Torque – Holding (oz-in / mNm) 16.66 / 117.68
Size / Dimension Round – 1.100″ Dia (28.00mm)
Diameter – Shaft 0.197″ (5.00mm)
Length – Shaft and Bearing 0.394″ (10.00mm)
Mounting Hole Spacing 1.378″ (35.00mm)
Termination Style Wire Leads with Connector
Operating Temperature
Coil Resistance 50 Ohms
Features Flatted Shaft




14 Days Warranty

This item is covered with a standard warranty of 14 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Micro Ohm customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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