{"id":7410,"date":"2021-05-30T16:41:13","date_gmt":"2021-05-30T14:41:13","guid":{"rendered":"https:\/\/info.formfedern.com\/made-to-measure-screw-locking\/"},"modified":"2021-07-02T13:13:02","modified_gmt":"2021-07-02T11:13:02","slug":"made-to-measure-screw-locking","status":"publish","type":"post","link":"https:\/\/info.formfedern.com\/en\/made-to-measure-screw-locking\/","title":{"rendered":"Made-to-measure screw locking"},"content":{"rendered":"
\"Spring
Spring washers<\/figcaption><\/figure>\n

Screw connections that loosen unnoticed can cause serious accidents and disasters. So that are suitable Screw locks<\/a> in the form of individually corrugated Spring washers<\/a> and finger spring washers to maintain a frictional connection<\/a> very important. It is true that the mechanical frictional resistance combined with the clamping forces between the nut, screw and the clamped parts is often sufficient for self-locking. However, the pre-tensioning force in the screw connection must be large enough to prevent relative movement between the components. If this is not the case, the connection can loosen itself without special screw locking – for example in the event of vibrations and repeated movements in the longitudinal or transverse direction.<\/p>\n

In order to prevent screws from loosening of their own accord, the designer can no longer refer to the usual standards when designing screw locking devices such as spring washers or serrated lock washers. The German Institute for Standardization (DIN) has withdrawn the relevant standards for subsequent screw locking devices without replacing them because they have proven to be ineffective under certain circumstances.<\/p>\n