Linear motion products are used in conveyors and assembly operations to provide movement in a straight line, including rolling elements in a raceway or guide rail. They also keep parts and machinery moving and aligned. Precision linear shafts guide bearings and slides in single-axis motion and positioning applications. Linear bearings fit around linear shafts to facilitate motion. Linear guide systems and components transport loads and provide precise movement along a linear axis. Ball screws and lead screws pair with corresponding threaded nuts to convert rotary motion into linear motion. Linear actuators convert rotating movement, such as that coming from a motor, to movement in a straight line.