No flattening out, low creep behaviour

A disadvantage of many plastics is their creep behaviour. When subjected to static and dynamic loads, the inner structure changes permanently and does not return to its original shape even after the loads have been removed. Runners made of POM or PET for example start to flatten out and result in vibrations, imbalance and increased wear. Runners made of PA 12G, however, exhibit a high restoring force. Thanks to the spherulitic crystallinity, the material returns to its original shape after having been deformed within the load limit. The smooth running properties of the material are thus preserved. Due to the large contact surface and thus lower surface pressure, wear on the runner and running track is minimal.
Pressed-in ball bearings retain their press fit and do not loosen when subjected to static loads.

Direct comparison of cast and extruded polyamides – i.e. comparison of polyamides with high and low crystallinity: The high-crystalline, cast PA 12G can be subjected to considerably higher and longer loads than the low-crystalline, extruded polyamides PA 12E and 6E.
diagramm zugspannung
kein Abplatten, geringes Kriechverhalten
kein Abplatten, geringes Kriechverhalten
kein Abplatten, geringes Kriechverhalten
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