{"id":6632,"date":"2026-01-23T09:22:15","date_gmt":"2026-01-23T08:22:15","guid":{"rendered":"https:\/\/kammerer-gewinde.zold.at\/lexicon\/track-deviation\/"},"modified":"2026-04-14T17:41:27","modified_gmt":"2026-04-14T15:41:27","slug":"track-deviation","status":"publish","type":"lexicon","link":"https:\/\/kammerer-gewinde.zold.at\/en\/lexicon\/track-deviation\/","title":{"rendered":"Track deviation"},"content":{"rendered":"\n<p>Ball screws are essential components in modern machinery and automation systems when it comes to precise positioning movements. A key quality factor here is what is known as positional deviation \u2013 that is, the difference between the actual position and the theoretically intended position. The smaller this deviation, the more precisely the entire system operates.  <\/p>\n\n<h3 class=\"wp-block-heading\">What does track deviation mean?<\/h3>\n\n<p>Position variation refers to the deviation of the actual position along the travel range from the target position. This deviation is assessed using an envelope curve and defines the tolerance range within which the spindle is permitted to move. A low position variation is therefore a key characteristic of high-quality ball screws.  <\/p>\n\n<h3 class=\"wp-block-heading\">Precision classes according to standards<\/h3>\n\n<p>Standards such as ISO 3408 classify ball screws into various precision classes, for example C5 or C7. These classes define the maximum permissible positional deviations \u2013 often specified in micrometers per 300 mm travel or per revolution (e.g. &#8220;Variation\/2\u03c0&#8221;). The higher the precision class, the smaller the permissible deviations.  <\/p>\n\n<h3 class=\"wp-block-heading\">Einflussfaktoren<\/h3>\n\n<ul class=\"wp-block-list\">\n<li>Genauigkeit der Spindelbearbeitung<\/li>\n\n\n\n<li>Runout and straightness tolerances<\/li>\n\n\n\n<li>Quality of the nut and ball return system<\/li>\n\n\n\n<li>Preset preload to reduce axial play<\/li>\n<\/ul>\n\n<p>An optimally designed preload not only increases system rigidity, but also ensures minimal backlash during direction changes. How is positional deviation measured? Evaluation is typically carried out using high-precision measuring instruments such as laser interferometers or dial gauges, which are guided along the complete travel range. Manufacturers often specify the maximum deviation as a clear parameter, for example &#8220;0.008 mm\/2\u03c0&#8221;, which describes the maximum permissible variation per revolution interval. Why low positional deviation matters Ball screws with minimal positional deviation offer significant advantages for applications where repeatability and precise positioning are critical.    <\/p>\n\n<h3 class=\"wp-block-heading\">Einsatzgebiete<\/h3>\n\n<ul class=\"wp-block-list\">\n<li>CNC machining centers<\/li>\n\n\n\n<li>Robot axes<\/li>\n\n\n\n<li>Measurement and testing technology<\/li>\n\n\n\n<li>High-precision automation systems<\/li>\n<\/ul>\n\n<p>Choosing the appropriate tolerance class ensures that the desired accuracy is reliably achieved \u2013 a key factor in process reliability and product quality.<\/p>\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ball screws are essential components in modern machinery and automation systems when it comes to precise positioning movements. A key quality factor here is what is known as positional deviation \u2013 that is, the difference between the actual position and the theoretically intended position. The smaller this deviation, the more precisely the entire system operates. [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false},"lexiconkategorie":[],"class_list":["post-6632","lexicon","type-lexicon","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/kammerer-gewinde.zold.at\/en\/wp-json\/wp\/v2\/lexicon\/6632","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kammerer-gewinde.zold.at\/en\/wp-json\/wp\/v2\/lexicon"}],"about":[{"href":"https:\/\/kammerer-gewinde.zold.at\/en\/wp-json\/wp\/v2\/types\/lexicon"}],"wp:attachment":[{"href":"https:\/\/kammerer-gewinde.zold.at\/en\/wp-json\/wp\/v2\/media?parent=6632"}],"wp:term":[{"taxonomy":"lexiconkategorie","embeddable":true,"href":"https:\/\/kammerer-gewinde.zold.at\/en\/wp-json\/wp\/v2\/lexiconkategorie?post=6632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}