The new Oriental Motor PKP Series stepper motors have built-in power-off activated electromagnetic brakes, which can hold a motor at a standstill. When power is accidentally cut off due to unexpected events, the electromagnetic brake holds the load in position to prevent it from moving. The electromagnetic brake can also be used to suppress the heat generated from the motor by switching off the motor current and using the brake as the holding function. The motors come in both bipolar and unipolar configurations and in the following frame sizes: 35 mm (1.38 in.), 42 mm (1.65 in.), and 56.4 mm (2.22 in.). PKP26_ models (56.5 mm/2.22 in. frame size) come with an 8 mm shaft.
