The Kerk® WDG Series anti-backlash acme lead screw assembly utilizes an exceptionally compact design to provide stiffness and balanced accuracy for precise positioning. The patented wedge design locks the anti-backlash nut at the correct preload without excessive drag.
Shorter than other self-compensating nuts with similar performance, the WDG nut permits the design of smaller assemblies without sacrificing stroke length. Nut wear or momentary overload is accommodated through the WDG Series’ compensation mechanism, which maintains positional accuracy in demanding applications.
The standard WDG Series assembly utilizes a self-lubricating acetal nut, axially preloaded, on a 303 stainless steel acme lead screw. End machining to customer specifications and Kerkote® or Black Ice™ TFE screw coating are optional, as are designs for special operating configurations or environments.
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