Stepping Actuators provide unidirectional rotation in steps, like indexing actuators, but without the hard stops. These actuators also prevent backward rotation but incur an accumulating error. Use these actuator whenever you need torque to be applied throughout a desired angle or a specific amount of stroke but do not mind if your load coasts to a stop if no external force acts on it. Unlike competitive products with add-on clutch housings, Rotomation stepping actuators have a fully integrated clutch-bearing assembly for solid support of your load. Our stepping actuators feature black-anodized aluminum bodies, precision-ground carbon steel shafts, ball bearings, and stainless steel.