What is the German term for actuator?

The German term for actuator is "Stellantrieb." This term is derived from "stellen," which means "to set" or "to position," and "Antrieb," which means "drive" or "actuation." An actuator is a device that converts energy into motion, and the term effectively reflects its function of setting a mechanism into motion or controlling its position.

In contrast, "Adapter" refers to a device that allows different components or systems to connect and communicate. "Baugruppe" means "assembly" and typically refers to a group of components that are assembled to perform a certain function, rather than a device that produces movement. "Lager," on the other hand, translates to "bearing" and is a mechanical element that supports and reduces friction for moving parts, which is unrelated to the function of actuation. Therefore, "Stellantrieb" is the correct term as it specifically denotes a device designed for motion and control.