drylin leadscrew drives are machine components that convert a rotary motion into a linear motion. The leadscrew (trapezoidal or high-helix thread) is dry run without lubrication, enabling it to be insensitive to dirt. They are available in steel or stainless steel and are corrosion free. They make little noise when in use and the anti-backlash option gives zero clearance operation. They cannot be used for required positioning accuracy below 10 µm, for dynamic high load operations or when efficiency greater than 50% is required.