The invention relates to an end effector (7) for a surgical instrument (1), said end effector (7) comprises a drive unit (6) comprising an electric motor (12) which rotationally drives a shaft (14, 18). According to the invention, the end effector (7) also comprises a rotation-translation-transmission (29) which is connected to the shaft (14, 18) and which translates a rotating movement of the shaft (14, 18) into a translatory movement, and at least one working element (8) which is coupled to the rotation-translation-transmission (29) and is only driven thereby in a translatory manner.
