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Zero-backlash lead screw nut

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Installation instructions AB

What is the axial clearance?

The axial clearance can be used to describe the lost motion, the "dead travel", on the lead screw as a result of the gap between the lead screw and the lead screw nut. The term clearance is also often associated with it, but the correct technical term is axial clearance.

In addition to the right choice of material, a preload mechanism has proven to be an effective measure for reducing unwanted axial clearance. There are four variants with pretension for our dryspin® high helix threads and trapezoidal threads: zero-backlash, low-clearance, preload and AB lead screw nuts. Here you will find all the advantages and necessary installation instructions for our reduced clearance lead screw nuts.
 
For applications with high loads, high temperatures or in heavily contaminated environments, a standard lead screw nut should always be used. The reason for this is that all three principles are cancelled out by excessive loads. For this reason, the maximum static axial loads are specified separately for each lead screw nut variant.