The Isotech slide screw converts rotational motion into linear motion by utilizing the friction between radial ball bearings and a shaft. This simple mechanism eases maintenance and installation cost. The slide screw is most commonly used as transport devices in many types of machines, and is not intended for accurate positioning requirements.

The Isotech slide screw consists of two aluminum blocks, each with three radial bearings with a fixed angle between them. A round shaft is inserted between the two blocks, and its rotation produces linear motion determined by the contact angle between the shaft and bearings. For variable loads, the thrust is adjusted by turning the spring loaded hexagonal bolts.