A typical hybrid stepper motor has how many rotor teeth?

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Multiple Choice

A typical hybrid stepper motor has how many rotor teeth?

Explanation:
In a hybrid stepper, the number of rotor teeth together with the number of stator phases determines how many distinct steps you can take per revolution. The common four‑phase stator yields four possible positions for each rotor tooth, so the total steps per revolution is rotor_teeth × 4. To get the typical 1.8-degree step, you need 360° / 1.8° = 200 steps per revolution. Solving rotor_teeth × 4 = 200 gives rotor_teeth = 50. So a typical rotor has about 50 teeth, which yields 200 steps per revolution (1.8° per step). If you ever see 200 listed as rotor teeth, that number actually corresponds to steps per revolution, not the rotor’s tooth count. The other numbers would imply different step angles when multiplied by the four stator phases.

In a hybrid stepper, the number of rotor teeth together with the number of stator phases determines how many distinct steps you can take per revolution. The common four‑phase stator yields four possible positions for each rotor tooth, so the total steps per revolution is rotor_teeth × 4. To get the typical 1.8-degree step, you need 360° / 1.8° = 200 steps per revolution. Solving rotor_teeth × 4 = 200 gives rotor_teeth = 50. So a typical rotor has about 50 teeth, which yields 200 steps per revolution (1.8° per step). If you ever see 200 listed as rotor teeth, that number actually corresponds to steps per revolution, not the rotor’s tooth count. The other numbers would imply different step angles when multiplied by the four stator phases.

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