Linear actuators are actuators which create motion in a straight line. Unlike a motor, which creates circular motion, a linear actuator can be used with any application that requires moving something in a straight line. Windy Nation LIN-ACT1 Series Linear Actuators are a powerful and reliable linear actuator for small to medium loads. We designed our linear actuator with pre-lubricated metal gears, pre-installed limit switches, and with an IP65 (suitable for outdoor use) water resistance rating. SEE PHOTO GALLERY FOR DIMENSIONAL DRAWING AND ADDITIONAL TECHNICAL SPECIFICATIONS.