These steppers have a threaded shaft, which allows them to be used as a linear actuator. As the motor runs, it moves along the shaft at a specific rate of 1cm per 5 full rotations. These are a good choice for linear motion where precision and repeatability are important.
Note: It looks like the datasheet for this stepper may not be accurate. When connecting this motor to a bi-polar driver you'll want to wire it according to the wiring diagram.
Features:
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Step Distance: 0.01mm
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2-Phase
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Rated Voltage: 12V
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Rated Current: 0.4A/Phase
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100mm Long Threaded Shaft (keyed on one end)
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Holding Torque: 21 N.cm
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6-Pin Wiring Harness Included