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For questions about torque as it relates to electronics. Consider using in conjunction with related tags such as "motor" (and more specific motor-related tags), if applicable.

2 votes

Stepper motor holding/cogging torque ratio

You need a variable-reluctance step motor. They are available from 24 to 200 steps/revolution. With zero excitation, they spin freely. There is no permanent magnet.
whitegreg56's user avatar