An actuator includes an inner member that defines an inner space within which a motor is supported. An outer member is supported for rotation about the inner member. A drive slot in the inner member is shaped to cause rotational movement responsive to axial movement of a motor without relative axial movement of the outer member relative to the inner member. A drive pin moved by the motor moves within the drive slot and is engaged to a drive channel of the outer member to facilitate rotation of the outer member about the axis.