3331 - 57STH56 NEMA-23 Bipolar Gearless Stepper

This high-speed bipolar stepper with a rear shaft has a 1.8° step angle and 11 kg cm of torque at low speeds.

This NEMA-23 motor generates 12.6 kg-cm of holding torque at 2.8 Amps. It comes with the rear shaft exposed, so you can mount an encoder or shaft coupler.

When connected to a 1067 - PhidgetStepper Bipolar HC, the 3331 has a maximum speed of 3000 RPM.

The 3331 stepper motor connects to a bipolar motor controller such as the 1067 - PhidgetStepper Bipolar HC.

The following table shows how to connect the motor wires to the board connectors to produce a clockwise rotation in the stepper motor when increasing position. To wire for counter-clockwise rotation when increasing position, reverse the red and blue wires.

Note: Make sure to unplug the power cord from the motor controller before switching wires around.

The rear shaft of this motor can be equipped with the HKT22 Optical Encoder for applications where you need to keep track of the exact position, velocity, or acceleration of the motor.

Motor Properties

Electrical Properties

Physical Properties

• Mechanical Drawings