What is axial clearance and how can it be prevented?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 this, but the correct technical term is axial clearance.
Find more information on reducing axial clearance here.Zero-backlash lead screw nutOne of the most precise solutions is the ZB lead screw nut. It consists of several components and adjusts itself over its service life. It is particularly suitable for lead screw drives with high helix threads for rapid adjustment of small loads. The clearance-free principle ensures minimal clearance over the entire service life. Ideal for precise positioning and feed movements in medical, laboratory, and printing technology as well as in the broad fields of life sciences.
The lead screw nut consists of a support nut, a fixing collar with a torsion spring, a friction washer, and the axial element. The pre-tension is applied to the thread system with the aid of the torsion spring.
► Lifelong minimal axial backlash
► More precise positioning and feed movements
► In dryspin high helix thread
► Flange lead screw nut
► Thread direction: RH
► Material: iglidur J
Important note:A standard lead screw nut should always be used for applications with high loads, high temperatures or in heavily contaminated environments. The reason for this is that the effect of all three principles is cancelled out by excessive load. For this reason, the maximum static axial loads are specified separately for each lead screw nut variant.
