A traditional lead screw and nut combination requires the driven screw to change its direction of rotation to enable the nut to return to its original start position. However, in certain applications, it may be advantageous to maintain a single direction of rotation of the screw but still have the nut return to the start position. With the self-reversing screw product, only one direction of rotation is required to achieve reciprocated bi-directional lateral movement.
The reciprocated bi-directional movement is achieved by using a follower blade in the nut, that is matched to the particular groove width and screw turn round on the screw. Please note that our self reversing screws, do not utilise ball bearings in their linear travel. Further product details can be found here