Stepper Motor 12VDC Unipolar

Stepper Motor 12VDC Unipolar

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.

The gearing has a few side effects which are important to note. First, you can turn the stepper by hand but not as smoothly as an un-geared stepper. It also means you shouldn't use interleaved or micro-stepping to control 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 80 RPM when powering with 12VDC and about 50 RPM on 9VDC.


    Unipolar stepper with 0.1" spaced 5-pin cable connector
    32 steps per revolution
    1/16.025 geared down reduction
    12V DC suggested operation
    Weight: 37 g.
    Dimensions: 28mm diameter, 20mm tall not including 9mm shaft with 5mm diameter
    9" / 23 cm long cable
    Holding Torque @ 12VDC: 250 gram-force*cm, 25 N*mm/ 3.5 oz-force*in
    Shaft: 5mm diameter flattened

 

 

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  • Views: 5526
  • Product Code: 28BYJ-48-12V
  • Availability: In Stock
  • KES 300.00

Tags: stepper motor

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