A wide range of rotational speeds is often attained as the speed is proportional to enter pulse frequency Holding torque: The torque necessary to rotate the shaft when coils are energized and the motor is stationary. Here is the motor’s rated torque—normally optimum when both of those coils are energized. https://seqsamly.activosblog.com/38661807/the-impact-of-bearing-wear-on-a-stepper-motor